REVELSTONE TERMS AND TRADING CONDITIONS

STANDARD TERMS AND TRADING CONDITIONS:

In these general terms and trading conditions, unless inconsistent with the context:

  1. “the Supplier” means Revelstone Cape (Pty) Ltd; and
  1. “the Customer” means any purchaser of any goods from the Supplier.
  1. GENERAL:
  1. All quotations given, all acceptances of Customers’ orders and all sales by the Supplier are expressly made conditional upon and in terms of the general terms and trading conditions as set forth herein. No concession, latitude or indulgence allowed by the Supplier to the Customer shall be construed as a waiver (tacit or otherwise) or abandonment of the Supplier’s rights hereunder. No amendment to these general terms and trading conditions, whether oral or otherwise, shall be effective unless it is recorded in writing and signed by duly authorised representatives of both parties. These general terms and trading conditions shall supersede any other express or implied written or oral terms, arrangements, customs or practices unless the written quotation of the Supplier specifically states otherwise.
  1. The Supplier objects to any varying terms proposed by the Customer in its order or any other document of the Customer. Such varying terms shall not become part of the contract without the express written consent and signature of the authorised representative of the Supplier.
  1. No order shall be deemed to be accepted by the Supplier unless and until confirmed in writing by the Supplier’s authorised representative.
  1. The Customer shall be responsible to the Supplier for ensuring the accuracy of the terms of the order.
  1. No order for Special Ordered Goods, which has been accepted by the Supplier may be cancelled by the Customer except with the agreement in writing of the Supplier and on the terms that the Customer shall indemnify the Supplier in full against all loss (including loss of profit), costs (including the cost of all labour and materials used), damages, charges and/or expenses incurred by the Supplier as a result of the cancellation.
  1. The quantity, quality and description of and any specification for the goods to be sold shall be those set out in the Supplier’s quotation (if accepted by the Customer) or the sales order (if accepted by the Supplier).
  1. Any bona fide (in good faith) error or calculation, or otherwise, made by the Supplier in the quotation or sales order, whether written or oral, may be rectified by the Supplier at any time and the Customer shall be obliged informed of the rectification and have the option to proceed with the order on the rectified price or cancel the order.
  1. The price of the goods shall be the Supplier’s quoted price, or the price accepted in writing by the Supplier in the Sales Order. All prices quoted are valid for 14 days only, after which they may be altered by the Supplier without giving notice to the Customer.
  1. The quoted prices are based upon the scope of the goods referred to in the Supplier’s offer. In the event of any variation in inter alia (among other things) the goods ordered by the customer, including delivery dates from that of the Supplier’s quotation, the Supplier reserves the right to vary the prices quoted.
  1. The Supplier reserves the right to require a deposit on all orders placed by the Customer and the extent of the deposit required will be set out in the quotation and/or sales order supplied by the Supplier. All deposits must be paid immediately on confirmation of the Customer’s acceptance of the quotation or placing of the sales order and the Customer acknowledges that it understands that until such time as the deposit is paid manufacture of the products shall not commence, and the sales order shall not be deemed to have been accepted by the Supplier. Deposits paid for special ordered goods are non-refundable and in the event of the cancellation of an order for special ordered goods any deposit paid shall be forfeited to the Supplier.
  1. Payment for a sales order must be made 24 hours prior to the estimated date of delivery of the product and proof of payment, to the satisfaction of the Supplier, must be provided to the Supplier by the Customer within the same period of time. In the event that the Customer fails to make the necessary payment or fails to provide the necessary proof of payment, the Supplier reserves the right to cancel the delivery of the product until such time as the payment has been confirmed. In the event that payment is not made within 48 hours of the expiry of the original estimated delivery date, the Supplier reserves the right to cancel the order with reasonable notice to the Customer and to claim any damages it may have suffered as a result of the cancellation of the order.
  1. If the Customer fails to make any payment on the due date then, without prejudice to any other right or remedy available to the Supplier, the Supplier shall be entitled to:

            12.1.     cancel the contract or suspend any further deliveries to the Customer;

12.2.     appropriate any payment or deposit made by the Customer to such of the goods as the Supplier may think fit (notwithstanding any purported appropriation by the Customer); and

  1. It is specifically recorded that the Supplier is not responsible for the delivery of any goods sold. The Customer shall elect whether it shall collect the goods from the Supplier or shall instruct the Supplier, acting as the duly appointed agent of the Customer, to arrange a third party to attend to the delivery of the goods. In the event that the Customer does not make any election or does not notify the Supplier of its express intentions in this regard, the Customer shall be deemed to requested the delivery of the goods and to have appointed the Supplier to act as its agent and to arrange for the delivery of the goods to the nominated address of the Customer. It is specifically recorded that in arranging the delivery of the goods, the Supplier acts as the duly appointed agent of the Customer and that it shall not be liable for any damages or loss to the goods (consequential or otherwise) occasioned out of the loading, off-loading or conveyance of the goods. Delivery of the goods by the Supplier to the Customer shall be deemed to have taken place at the premises of the Supplier when the goods are presented for loading either to the Customer or the appointed 3rd party carrier. In this regard the Customer indemnifies the Supplier against any claims for loss or damage that may be instituted against it by the third party carrier or any other party arising out of the Supplier’s acting as the duly appointed agent of the Customer.  
  1. The Supplier gives no guarantee or warranty as to the date or time of delivery of any goods and the Supplier shall not be liable in any way for any delay in execution of delivery, services or the production of the product. The risk in all goods supplied shall pass from the Supplier to the Customer on delivery thereof. Regardless of the passing of risk or the delivery of the goods, ownership of any goods delivered to the Customer by the Supplier shall remain vested in the Supplier until such time as the consignment of goods has been paid for in full.
  1. Until such time as title in the goods passes to the Customer, the Supplier shall be entitled to require the Customer to redeliver the goods to the Supplier, and if the Customer fails to do so forthwith, to enter upon any premises of the Customer or any third party where the goods are stored and repossess the goods. Until such time as in accordance with this provision, the goods shall not be pledged or given as security or resold by the Customer, and the Customer undertakes to store the goods on its premises separately from its own goods or those of any other person and in a manner which makes them readily identifiable as the Supplier’s goods.
  1. The Customer shall reimburse the Supplier for any expenses and costs to the Supplier in recovering any goods arising from any non-compliance by the Customer with the terms of Clause 15.
  1. INSPECTION OF GOODS

The Customer or a representative of the customer has had the opportunity to thoroughly inspect the goods once supplied to satisfy themselves that the goods supplied by Revelstone are in good, working order and are fit for the purpose supplied

  1. ACKNOWLELGEMENT AND DISCLOURE OF RISKS, DEFECTS AND UNSAFE ITEMS.

            The Customer accepts that the Supplier has disclosed the following risk(s), defect(s) and /or unsafe item(s) relating to the goods. The Customer acknowledges that he/she/it is aware of the risk(s), Defect(s) and unsafe item(s), and confirms that he/she/it fully understands the extent of such risk(s), defect(s) and unsafe item(s). The Consumer furthermore acknowledges that he/she/it, will accept the goods with the following potential risk(s), defect(s) and/or unsafe item(s) which were pointed out to the Customer. The goods can slightly discolour, differ in size and texture, as explained in the product information guide on www.revelstone.co.za, and the customer accepts the goods with the mentioned potential risk(s) and/or defect(s).

  1. It is specifically recorded that the Supplier does not accept any returns on correctly supplied non-defective goods.
  1. The Customer hereby consents to the jurisdiction of the Magistrate’s Court for any action that might arise from the agreement between the Customer and the Supplier.
  1. Should any proceedings be instituted by the Supplier against the Customer in respect of any matter in relation to the enforcement of the Supplier’s rights, including the recovery of monies owing to the Supplier, the Supplier shall be entitled to recover the costs of such proceedings, including collection fees and tracing agents on the scale as between attorney and own client.
  1. For the purposes of any legal proceedings arising between the Supplier and the Customer, the Customer hereby chooses the physical address given on the quotation, alternatively sales order, alternatively credit application, as its domicilium citandi et executandi(the address of execution and where documents, notices and processes must be served) at which all notices, documents and process can be delivered/served.
  1. Unless superseded by a specific signed agreement between the Customer and the Supplier, this agreement shall include the quotation, sales order, these general terms and trading conditions, and all attachments referred to in the sales order or in the general terms and trading conditions, and it shall constitute the entire agreement of the parties with regard to the subject matter contained therein. All other prior or contemporaneous representations, warranties, covenants or agreements between the Supplier and the Customer, or their representations with respect to the subject matter are hereby superseded.
  1. PRODUCT GUIDELINES:
  1. Revelstone is committed to customer service, innovative product development, manufacture and design. To help you obtain maximum enjoyment, satisfaction and long service from any of our products, we would be pleased to make you aware of the following:

Please view our website for information regarding preparation, layouts, installation and sealing guidelines for Revelstone products – www.revelstone.co.za

24.1      COLOURS

All products are reconstructed to have the appearance of natural stone where shades vary and are subject to slight variations. This is highlighted when products are handmade or custom made to ensure a unique shade or colour mix. Colours can appear to change significantly depending upon the prevailing conditions such as sunlight, shade, rain, method of installation and sealing, you are advised to check colour and actual appearance before ordering. In Manufacture every effort is made to ensure consistency of product colour however variations in production batches can occur. We therefore recommend that, when purchasing especially in the case of larger orders that products are thoroughly mixed on site prior to laying to ensure a good colour distribution. All products are made using imported Iron oxides and are embodied to ensure excellent long term wear and appearance. The slight variations add to the natural appearance of all our products. Revelstone products will weather and wear over time in a similar way to natural stone.

24.2      SIZES

All sizes, dimensions, weights etc. shown herein are nominal and subject to manufacturing tolerances. Our range is designed to simulate and replicate the appearance of natural stone where sizes and thicknesses vary due to being exact copies of original stone masters. This ensures that all our products resemble as close as possible to naturally weathered stone from which they are simulating.

24.3      TEXTURES

Much care and attention has been spent ensuring that throughout the Revelstone range of products there is a wide variety and mix of textures within each size and range. To ensure that there is no repetition of faces as all products are made from original stone replicas to ensure excellent surface and texture reproduction.

24.4      EFFLORESCENCE

On newly laid paving white patches and markings can appear on the surface once grouted this is known as Efflorescence. Initially an apparent loss of colour or a milky white bloom is apparent on the surface of the product which gives the impression that the colour has faded or washed out. This is not the case and the effect will disappear in time depending on location, degree of traffic/usage and natural weathering. It is in no way detrimental to the performance or strength of the product. Revelstone cannot accept responsibility for the effect of Efflorescence, a common occurrence in all high quality coloured concrete products. Please contact us should you require more technical detail in this regard.

An example of Efflorescence can be viewed on our website – www.revelstone.co.za

 

24.5      PRODUCT APPEARANCE

All products from Revelstone are manufactured and stored undercover their entire lives before you receive them; this explains the dark sweat mark apparent on the face of the tile when you receive delivery. This occurs due to heat being created between the pavers in storage and will generally go away in time.

Once the product has been laid and after varying lengths of time, dark and light patches can occasionally occur on the surface of the product. This is caused by differential weathering, water trapped beneath the product or when the surface of the product has cured at a different rate. These patches or marks generally disappear with time.

Examples of different product appearance can be viewed on our website – www.revelstone.co.za

 

24.6      AGGREGATE TRANSPARENCY

This is a passing nuisance that can occur on the product from time to time and cannot be prevented. It is caused by a combination of weather related causes, product situation as well as elements in our raw materials out of our control. We do all we can to try to prevent this from happening by storing all goods undercover during curing and prior to delivery as well as using the latest technology in the form of additives and concrete technology etc. However it can happen and in most cases will disappear over time. The best is to allow nature to run its course, but it can be vastly improved by acid washing and then sealing with a Solvent base sealer which helps reduce the markings. We recommend though the best option is to leave and allow it to dry out naturally. In some instances sealing may cause more long term marking and especially in newly laid areas when the affected product has not been given enough time to dry out. This phenomenon is totally unpredictable and more prevalent in wet areas.

Examples of Aggregate Transparency can be viewed on our website – www.revelstone.co.za

 

24.7      MAINTENANCE

Regular cleaning and maintenance is required to keep the overall appearance of the product. The use of acidic cleaners should only be used in extreme instances. Our range of tiles are used extensively for indoor areas this however requires long term protection and sealing/polishing to maintain the desired finish against daily wear and tear associated with indoor living. Our products are ideal for outdoors and can be left untreated as many people do allowing the product to naturally weather and wear with time reflecting the natural hues like the original stone it was copied from. It is recommended that our products are sealed outdoors depending on your personally chosen colour/situation of product and your personal requirements. It can only serve the product well and will enhance the appearance of the product should you not want to wait the months needed for the product to naturally weather and wear creating its own natural shine and finish.

24.8      STORAGE AND HANDLING

All products to be handled carefully to avoid damaging the edges and surfaces of the product.

All products must always be stored undercover and on their edge stacked vertically (not horizontally), leaned against a wall and raised off the ground by pieces of timber (this prevents moisture from the ground).

24.9      MATERIALS

To ensure that all our products are of the highest possible standard and are long lasting we have sourced over the past years of development the best quality sands, granite stone, quartz, colour pigments and cement which we use in the manufacturing process. All Our products are made using imported Iron oxides and are embodied to ensure excellent long term wear and appearance. Revelstone rely on suppliers to give consistent colours in the sands and cements we use this is however out of our control as quarries change at regular intervals. The long term advantage of all our products is that they respond well to the effects of modern living, wear and weather conditions which all enhance their overall appearance. The colour shades will mature with age and become more attractive due to wear, traffic and natural growths giving the product character and the desired weathered stone appearance.

24.10     BROCHURE/WEBSITE

The colours shown are as exact as photographic and printing processes will allow. We recommend that all colours are chosen from actual products and not on what is shown herein; actual samples are available free on request. As Innovators we are constantly improving and adding to our range, accordingly we reserve the right to vary designs and specifications shown herein.

24.11     SHOWROOM

The showroom was designed to give you ideas on how our products can be used in your own unique environments and is most beneficial when viewing all products laid in-situ, as to in a catalogue or website. Please visit where one of our sales team will help you in choosing the product suitable for you! Colour samples are available on request for you to take home with you.

24.12     ASSURANCE OF QUALITY

Products of inferior quality which cost less are often offered with the implication that they are of equal to Revelstone. You have chosen Revelstone Products because your new patio, garden, driveway, development or project deserves only the best.

Since its inception in 1993 Revelstone has been committed to quality products, customer service, innovative product development manufacture and design. To help you obtain maximum enjoyment, satisfaction and long service from any of our product’s we recommend that on making your product choice from the catalogue you verify with your paving, pool company, contractor or builder that you are being supplied with Revelstone Products and not an inferior look alike.

24.13     MATERIAL SPECIFICATIONS

Size:                              All sizes, measurements shown herein are approximate

Colour:                          Colour embodied to ensure excellent long -term wear and superior resistance

Compressive Strength:      34 – 36mpa (+)

Density:                         2 300kg/m3

Absorption:                     Average of 0.5% (SANS 1058 prescribes maximum average 6.5% to 8.0%)

Abrasion Resistance:        4 grams mass loss (SANS 1058 prescribes average mass loss should not exceed

                                    15 grams)

Shrinkage:                      0.05%

SCM (Slag/Fly Ash):          20% of Cementitious

Please view our website for information regarding preparation, layouts, installation and sealing guidelines for Revelstone products – www.revelstone.co.za.

  1. INSTALLATION GUIDELINES:

The following guidelines are recommended by Revelstone as the manufacturers, as the correct way to install there cast stone products. However it must be understood that as Revelstone does not provide an installation service, the company cannot be held responsible for any defects which may arise from incorrect installation by contractors or clients. It is important that only experienced installers and contractors are used; do not use installers who are unfamiliar or inexperienced with cast stone products.

All installations are done at the users own risk.

  1. REVELSTONE PAVERS

 

25.1      STORAGE & HANDLING

All Revelstone products must be handled carefully to avoid damaging edges and surface of the product. Pavers should always be stored undercover on their edge not horizontally (stacked) prior to being laid. To make you’re paving slabs easier to handle, lean them against a wall and raise them off the ground on old pieces of timber. This also helps to prevent any moisture from the ground being absorbed causing a damp mark on the pavers. All pavers from Revelstone are manufactured and stored undercover their entire lives before you receive them; this explains the dark sweat mark apparent on the face of the slab when you receive delivery. This occurs due to heat being created between the pavers in storage and will generally go away in time depending on the site conditions. Pavers are heavy and bulky and suitable lifting and handling equipment should be used. The correct safety gear and protective clothing must be worn at all times i.e. gloves, dust masks, safety boots etc.

 

25.2      AREA & BASE PREPARATION

Before starting the existing ground must be evaluated and the relevant subcase or subgrade chosen (SABS 1200D degree of accuracy I). Every job will have different requirements and therefore the contractor must decide what is required in each situation. The following must be considered – existing ground conditions, finished paved surface levels, expansion joints, drainage of paved area and correct paver choice for expected usage – 50mm-60mm for high traffic/heavy/commercial and 40mm-45mm for commercial/residential/foot traffic. Clear the area to be paved of all vegetation and remove topsoil, consolidating and levelling the ground with a roller to the required depth. When laying pavers adjacent to a house ensure the top level is below the damp proof course – approximately 150mm. When laying next to a lawn make sure the finished paving level is just below that of the lawn to make cutting accessible. All paved areas should have a slight slope to disperse water and ensure easy run off. The ideal slope or “fall” is 4cm-5cm in every 3 metres away from building or house – 1:50 approximately.

 

25.3      SOLID PAVING – GROUTED

This is suitable for light to medium traffic – patios, pool areas, pathways, courtyards:

  • Once your base is cleared of all roots etc. – a 50mm-75mm compacted hard-core or base course must be bought in and compacted – medium to heavy traffic usage.
  • With a rake or screeding straight edge, put a topping of 20mm-40mm dry mix of sand and cement (4:1) in to which the paver will be bedded.
  • Starting in a corner mark out the area to be paved with string lines and pegs, adjusting the height according to the average thickness of the pavers.
  • It is vital to brush the backs of the pavers with a steel brush and water removing all loose dust etc.
  • Use an angle grinder with all the necessary safety equipment in order to cut the slabs – a diamond blade is essential.
  • Before you grout the pavers it is important to humor – doing all the necessary adjustments for height and size, this may require lifting and swapping of pavers to achieve a regular grout gap of 5mm-20mm approximately – depending on paver choice.
  • Using a spirit level and a straightedge ensure the paving is level and the “fall” is correct during laying. Once area is grouted it is very costly to now remove and relay pavers that have major height differences from another.
  • As the product is simulated to replicate real stone these variations are essential in order to create the natural stone appearance – no perfect straight lines and flat surfaces etc.!!
  • You can now fix the slabs – make a wet creamy cement slurry (cement/water) and pour it under each slab creating a bond with the base.
  • Now gently tap slab down into the base ensuring sufficient adhesion using a rubber mallet.
  • Continue using spirit level and straight edge to ensure levels and “fall” are being maintained.
  • Having laid all the paving lightly sprinkle the area with water to set it off, do not flood the area.
  • On completion allow the paving to settle and become solid before grouting.
  • Paved area may then be pointed or grouted – standard joint 5mm-20mm – depending on paver choice.
  • This is easily done using a semi dry mortar mix of 3 parts building sand to 1 part cement, fed into the gap taking care so as not to stain the slabs.
  • It is vital to clean the slabs off with clean water whilst grouting – changing the water and sponges regularly. This will determine the outcome of your paved area whether it is dull and has a grey film of cement left behind on the surface or not.
  • It can either be smoothed over by sponge or pointed – using a special tool or a rounded piece of wood.
  • Once paving is completed wet the area consistently for 3 days afterwards especially during hot weather as this will allow area to cure at a normal rate and reduce joints drying too quickly. Allow no major traffic/usage over it for two or three days to allow paving to settle and cure.

25.4      LOOSE PAVING – UNGROUTED

This is recommended when groundcovers, grasses or stone chip is chosen to create a more soft landscape feel.

  • Once the site has been levelled and excess top soil removed and the area well compacted (water is a good compactor) you can begin.
  • It is advisable to lay bidim cloth under your 20mm-30mm sand base to prevent weeds, subsidence, moles, stone mixing with the soil etc. This is a more effective option than plastic which breaks down over time and pools water which bidim allows to drain through it.
  • Lay a 20mm-30mm layer of builder’s sand on top of your bidim/well compacted top soil.
  • The pavers are then pressed down into sand base and levelled from the top using a spirit level.
  • A joint size of between 20mm-40mm for stone chip and 30mm-50mm for groundcovers, etc. is recommended.

25.5      CLEANING OF PAVERS

  • It is vital to keep the slabs clean using a sponge and water whilst laying and especially when grouting.
  • Should the product be badly soiled or stained use acidic cleaners sparingly to remove grout and cement stains. This is however done at your risk and must be supervised by the contractor or installer responsible.
  • We recommend a mix of water and synthetic acid – Barracuda – 5:1 doing small areas of less than 1m2 at a time with a soft bristle brush, rinsing off heavily with water to dilute the water/acid solution so as not to damage the pavers.
  • A “green” synthetic acid alternative – Barracuda – is recommended and is available from Chryso.
  • This will clean off most adhering cement, grouting and efflorescence marks appearing on the newly laid product.
  • As it is a cement product it requires time after being laid to dry out to its original colour, etc. Often the slab has a wet patch in the middle after being laid; this is because the slab dries from the outside in. This drying out patch will disappear depending on how much moisture etc. has been trapped under the slab and how long this takes to move out through natural osmosis.

 

For sealing of Pavers see separate instructions.

Please Note: The specification above is not suitable for heavy commercial conditions: extra consideration must be given in terms of the sub base, strength of the topping screed and grouting, correct thickness of product, condition of existing ground, long term usage, expansion joints, drainage and expected loads which the paving will be expected to carry.

  1. REVELSTONE TILES

 

It is important to understand that our tiles are cement based and are moulded to simulate the appearance of natural stone where sizes and thicknesses vary. This ensures that all our products resemble as close as possible to natural stone. Follow the procedure outlined below for storing, laying and finishing.

 

26.1      STORAGE AND HANDLING

All Revelstone Tiles must be handled carefully to avoid damaging edges and surface of the product. As the tile ranges from 15mm- 25mm in thickness it is not able to take excessive handling and rough treatment, its strength is once it is laid in situ. Tiles should always be stored undercover on their edge not horizontally (stacked) prior to being laid. To make your tiles easier to handle, lean them against a wall and raise them off the ground on pieces of timber. This also helps to prevent any moisture from the ground being absorbed causing a damp mark on the tile. All tiles from Revelstone are manufactured and stored undercover their entire lives before you receive them; this explains the dark sweat mark apparent on the face of the tile when you receive delivery. This occurs due to heat being created between the pavers in storage and will generally go away in time. Tiles do not like excessive and malicious handling so suitable lifting and handling equipment should be used. The correct safety gear and protective clothing must be worn at all times i.e. gloves, dust masks, safety boots etc.

 

26.2      PREPARATION

When laying the tile on to a new concrete slab allow at least 3-4 weeks for the slab to cure and dry before applying the tiles (slab will shrink and contract excessively in its early form).

Ensure that all concrete surfaces to be tiled are clean and free of all traces of shutter release and curing agents, laitance, natural growths and any other surface contaminants, preferably by acid washing (rinse off well before tiling) or sandblasting.

It is not advisable to lay the tile directly onto existing brick paving or ceramic/clay tiles as your Revelstone Tile is cement based and expands and contracts at a different rate to these other products. It is advisable in most circumstances to use a permabond/keycoat bonding liquid so as to create a better adhesion between the tile and the existing surface.

 

26.3      PROCEDURE FOR FIXING OF TILES

There are two methods of laying which you may use.

 

  1. Into a screed:

This is used if a concrete slab is not cast to save costs and tile is laid and bedded into the screed – residential or light usage only.

  • Before beginning the tiling process it is vitally important to physically wash off the back of each tile using a steel brush and water removing all loose dust, etc.
  • Throw a 40mm-75mm semi-dry cement screed (5 sand to 1 cement) and compact it well, ensure you take into account the levels or “fall” etc. required. You should allow a slope of 4cm-5cm every 3 metres (1:50) approximately away from the house or building.
  • Begin tiling in one corner, lay your tiles and design loose before fixing, avoid walking on the tiles as they will crack and break whilst being loose.
  • Before you fix the tile it is necessary to “humor” the tile.
  • This means making all the height and size adjustments required when laying a simulated stone tile – the sizes vary in thickness and size due to their individuality.
  • A cement slurry (cement/water) should then be used under each tile.
  • This requires lifting each tile pouring the slurry on the screed and bedding tile using a twisting action to ensure full contact between the screed, slurry and tiles.
  • Use a spirit level and a straight edge to ensure levels and “fall” are being maintained whilst fixing.
  • Tiles should then be tapped gently using a rubber mallet. It is sound practice to remove the occasional tile to ensure that good contact has been achieved.
  • Clean off surplus cement on the face continuously using a sponge and water before it dries and stains the surface.
  • See Grouting below for details.
  1. Using tile adhesive:
  • Adhesive is the best way to lay the tile but can be expensive due to the unevenness of the tile.
  • You will require approx.1 bag of adhesive for every 1½m2.
  • Never tile in hot conditions, this may cause problems when fixing the tile. If it is too hot the adhesive dries too quickly and does not bond with the under surface of the tile – this will result in excessive movement between the tile and the grout with the grout pulling away slightly from the edge of the tile. This also causes the tile when knocked to sound as if it is hollow.
  • Before beginning the tiling process it is vitally important to physically wash off the back of each tile using a steel brush and water removing all loose dust etc.
  • Begin tiling in one corner, lay your tiles loose before fixing in order to marry the sizes, avoid walking on the tiles now as they will crack and break whilst being loose – especially the corners.
  • This may require lifting and swopping of tiles to achieve a regular grout gap of 5mm-20mm approximately – depending on tile choice.
  • Use an angle grinder with all the necessary safety equipment to cut the tiles.
  • When using adhesive it is imperative that there is a solid bed of adhesive beneath each tile – we do not recommend the 5 spot method.
  • It is also essential to butter the back of the tile, bedding it firmly into the wet adhesive using a twisting action and a rubber mallet (tap gently) to ensure sufficient contact between concrete base, adhesive and tile.
  • It is sound practice to remove the occasional tile to ensure that good contact has been achieved.
  • Be aware that occasionally after laying is completed, some tiles may sound hollow; this is due to the tile not being completely buttered with adhesive but should not affect the integrity or strength. Ask the Tiler to confirm or contact the supplier of the adhesive.
  • All levelling is to be done from the top of the tile not the base due to the individuality of each tile – size and thickness vary according to the original stone it was copied from. Use a spirit level and a straight edge to ensure levels and “fall” are being maintained whilst fixing.
  • Never butt joint tiles (less than 5mm) – joints are required to allow the individual tiles to move with respect to each other and thus avoid compressive stress build up.
  • Do not tile over structural, expansion or cold joints in the background. These joints must be extended through the various layers to the surface.

When tiling onto a concrete deck with a Waterproof Membrane (torched) do the following:

  • Residential: Cover first with PVC black plastic (250 micron minimum) cut to cover membrane – this is a separation layer to protect the membrane from damage. Then cast a 50mm screed (floating screed) on top and follow the tiling procedure above.
  • Commercial: It is advisable to use bitumen polyester like Interdek as a separation layer to protect the membrane from damage in commercial or high traffic/usage areas. You then cast a 50mm screed (floating screed) on top of the Membrane and follow the tiling procedure above.
  • It is important to ensure sufficient drainage so make sure falls, etc. are correct, or water will pool below the tiles on top of the membrane. This water will then continually migrate through the screed and tiles by natural osmosis – thus causing efflorescence, negative aggregate transparency, dark colour patches and the tile will never dry out completely.
  • If you need any further details contact Derbigum or relevant waterproof supplier.

26.4      GROUTING OF TILES

  • Grouting must not be carried out until the adhesion process has had sufficient time to take place and the tiles have settled. This may take 1-2 days depending on the weather conditions after completion of laying.
  • Tiled area may then be pointed or grouted.
  • This is easily done using a semi dry mortar mix of 2 or 3 parts building sand to 1 part cement, fed into the gap and troweled or sponged to desired effect.
  • It can either be smoothed over by sponge or pointed – using tool or rounded piece of wood.
  • It is vital to clean the tiles off with clean water whilst grouting – changing the water and sponges regularly. This will determine the outcome of your tiled area, whether it is dull and has a grey film of cement left behind on the surface or not.

26.5      CLEANING OF TILES

  • As mentioned already it is vital to keep the tiles free of adhesives using a sponge and water whilst laying and especially when grouting.
  • Should the product be badly soiled or stained use acidic cleaners sparingly to remove grout and cement stains. This is however done at your risk and must supervised by the tiling contractor or installer responsible.
  • We recommend a mix of water and synthetic acid – Barracuda – 5:1 doing small areas of less than 1m2 at a time with a soft bristle brush, rinsing off heavily with water to dilute the water/acid solution so as not to damage the pavers.
  • A “green” synthetic acid alternative – Barracuda – is recommended and is available from Chryso.
  • This will clean off most adhering cement, grouting and efflorescence marks appearing on the newly laid product.
  • As it is a cement product it requires time after being laid to dry out to its original colour, etc. Often the tile has a wet patch in the middle after being laid; this is because the tile dries from the outside in. This marking will disappear depending on how much moisture etc. has been trapped under the tile and how long this takes to move out through natural osmosis. Prevailing ground conditions play a huge part in this regard i.e. clay is the worst.
  • Details of experienced contractors can be supplied to enquirers on the express understanding that Revelstone implies no recommendation whatsoever as to the standards of performance, reliability, etc. of that company or person and accepts no responsibilities for any aspect of any contract or arrangement made between company or person and customer.
  • Should you require your tiles to be professionally cleaned and sealed we will gladly recommend – please enquire from a member of our sales staff.

For sealing of Tiles see separate instructions – indoor and outdoor details

Please Note: For heavy commercial conditions: extra consideration must be given in terms of the sub base, strength and thickness of the concrete slab, grouting, long term usage, expansion joints, drainage and expected loads which the tiles will be expected to carry. An architect/engineer should provide specification based on their expertise where necessary.

  1. REVELSTONE COBBLES

27.1      STORAGE & HANDLING

All Cobbles must be handled with care to avoid damaging edges and surface of the product. All Cobbles are delivered to site on pallets and shrink wrapped to prevent damage. On delivery it is important that pallets are placed on level and stable ground. Once goods have been offloaded on site it is very important that cobbles are taken randomly from various pallets to ensure good colour distribution between the various batches. Cobbles must always be handled with care to avoid breakages and chipping of the product prior to laying. Cobbles are heavy and bulky and suitable lifting and handling equipment should be used. The correct safety gear and protective clothing must be worn at all times i.e. gloves, dust masks, safety boots etc.

 

27.2      GROUND PREPARATION

Before starting the existing ground must be evaluated and the relevant subase or subgrade chosen (SABS 1200D degree of accuracy I). Every job will have different requirements and therefore the contractor must decide what is required in each situation. The following must be considered – existing ground conditions, finished paved surface levels, drainage of paved area and correct cobble choice for expected usage – 75mm for high traffic/commercial and 50mm-60mm for residential/foot traffic.

 

27.3      COBBLE PAVING – GROUTED

  • Before bringing in the topping remove approx. 100mm lower than the required finished level of the paving – commercial use.
  • Make sure that the bedding sand is free of roots and clay, etc. prior to compaction.
  • A 20mm-50mm topping of clean white builders sand (sharp sand) is then compacted and prepared for the screed. (thickness to be decided by installer/contractor)
  • For high traffic, steep or inclined driveways or roadways we recommend that the topping and screed be a mix of 10:1 sand and cement to give added stability to the base.
  • The screed – a layer of slightly damp sharp sand 20mm-40mm thick (total of topping and screed not to exceed 50mm-60mm unless cement stabilized) – string lines and a straight edge are needed to level and get the correct falls and finished heights.
  • The area is now ready to be paved.
  • Starting at the bottom if sloped or from a right angle or straight edge, place the cobble making sure that the top finished level is about 5mm above to allow for compaction.
  • Continue laying in the chosen pattern ensuring that cobbles are taken off pallets randomly to ensure even colour distribution throughout paved area.
  • Use an angle grinder with all the necessary safety equipment in order to cut the cobbles wherever gaps are – a diamond blade is essential.
  • Edging – make sure that all edging cobbles are bedded on a concrete footing (4: sand/2: stone (6mm)/1: cement) to ensure that edge restraints remain intact and hold paving securely in place.
  • Now that all cobbles are laid and cuttings completed sweep cobble surface clean of all debris.
  • Before you grout the cobbles it is important to humor the cobbles – doing all the necessary adjustments for height and size, this may require lifting and swapping of cobbles to achieve a regular gap and straight lines.
  • The paved area can then be compacted using a mechanical roller or flat plate vibrator (with rubber mat) into the surface bed.
  • The area will require at least 5 passes over it to ensure it is thoroughly compacted and relatively level.
  • As the product is simulated to replicate real stone cobbles these variations are essential in order to create the natural stone appearance – no perfect straight lines, etc.!!
  • Paved area may now be grouted.
  • Standard grout mixture for cobble paving – is a 6:1 – clean sand to PPC Cement (Surebuild).
  • In builders terms – 1 bag of cement to 3 standard wheel barrows.
  • This mix (a wet slurry mix) is then pre mixed and dumped on to paving and hosed in with water, sweeping into joints to just below surface of the cobble. Avoid over filling the joints as this leads to excessive short term cracking of the top of grout and unsightly paving.
  • It is vital to clean the cobbles off whilst grouting. This will determine the outcome of your paved area whether it is dull and has a grey film of cement left behind on the surface or not.
  • Once paving is completed wet area consistently for 4 days afterwards especially during hot weather as this will allow area to cure at a normal rate and reduce joints drying too quickly (cement process needs water to cure). Allow no traffic over it for four days to settle and cure prior to use.

 

27.4      CLEANING OF COBBLES

  • It is vital to keep the cobbles clean using water whilst laying and especially when grouting.
  • Should the product be badly soiled or stained use acidic cleaners sparingly to remove grout and cement stains. This is however done at your risk and must be supervised by the contractor or installer responsible.
  • We recommend a mix of water and synthetic acid – Barracuda – 5:1 doing small areas of less than 1m2 at a time with a soft bristle brush, rinsing off heavily with water to dilute the water/acid solution so as not to damage the pavers.
  • A “green” synthetic acid alternative – Barracuda – is recommended and is available from Chryso.
  • This will clean off most adhering cement, grouting and efflorescence marks appearing on the newly laid product.
  • As it is a cement product it requires time after being laid to dry out to its original colour, etc. Often the cobble has a wet patch in the middle after being laid; this is because it dries from the outside in. This will disappear depending on how much moisture, etc. has been trapped under the cobble and how long this takes to move out through natural osmosis.

Please Note: The specification above is not suitable for heavy commercial conditions: extra consideration must be given in terms of the sub base, strength of the topping screed and grouting, correct thickness of product, condition of existing ground, long term usage, expansion joints, drainage and expected loads which the cobbles will be expected to carry.

 

  1. REVELSTONE CLADDING

It is important to understand that our Cladding is cement based and moulded from original Stone Masters to exactly simulate the appearance of natural stone, therefore sizes and thickness vary. This ensures that all our products resemble natural stone as closely as possible. Follow the procedure outlined below.

 

28.1      STORAGE & HANDLING

  • All Revelstone products must be handled carefully to avoid damaging edges and surface of the product.
  • Cladding should always be stored undercover on their edge not horizontally (stacked) prior to being laid. All Cladding is manufactured and stored undercover before delivering to site; this explains the darker colour sometimes apparent when you receive delivery. This occurs due to heat being created between the cladding on the pallet in its curing stage and will generally get lighter in time depending on the prevailing conditions.
  • Suitable lifting and handling equipment should be used. The correct safety gear and protective clothing must be worn at all times i.e. gloves, dust masks, safety boots etc.

28.2      SURFACE PREPARATION

On all newly built or plastered walls there is a minimum curing period for both brick and concrete.

  • New walls require 4 weeks curing time before cladding can begin.
  • Newly plastered walls require another 2 weeks before cladding can commence.
  • Ensure that all brickwork, concrete and cement plasters are suitable, firm (no friability) and have moisture content of 5% or less before cladding commences. Remove and replace all defective cement plasters before cladding commences.
  • When cladding directly onto concrete, ensure that the surfaces are clean, free of all traces of laitance, curing agents or contaminants. This can be done by scarifying the surface. Do not use solvents as this may lead to contamination of the substrate and cause poor bonding of the tile adhesive or preparation material.
  • Post tensioned rib and block, hollow core or echo slabs require priming as below before cladding commences.
  • Most walls will need to be primed, chipped, brushed, scabbled or shot blastered to 80% prior to cladding. Alternately the surface must be primed with Permobond and Cement/ Sand mix or similar. Apply to a thickness of 1,5-2mm with a builders block brush. Allow 24 hours to dry before cladding commences.
  • All painted surfaces must be chipped 80% and then primed prior to tiling – as mentioned above.
  • Cladding must be clean, free of dust and contaminants. Cladding must be laid dry and must not be soaked before application. This can be easily done using a steel brush and clean water.

28.3      MOVEMENT JOINTS

  • Should there be any building structural/expansion joints in the structure of the walls, these joints width must be maintained and carried through the adhesive bed and the cladding, and filled with a suitable flexible filler or expansion joint profile.
  • Cladding movement joints must also be allowed for in vertical corners. Surface obstructions, pipes, fixed fittings, over all building material variances (brick and concrete beams).

28.4      PROCEDURE TO FOLLOW FOR ADHESIVE APPLICATION FOR REVELSTONE CLADDING

  • Ensure that the surface is not friable and that all laitance, dust is removed. Do not wet the surface before cladding commences.
  • Use Tylon WB11, Fastset WB114 or similar mixed only with clean cold water. Apply to the surface to a minimum bed thickness of 6mm. This can be achieved by using a 10mmx10mmx10mm notched floor trowel.
  • Spread only enough adhesive for each individual piece. Should a thin film (skin) appear on the surface of the adhesive, re agitate with trowel before bedded.
  • Press the dry Revelstone cladding firmly into wet adhesive with a twisting action. Product must be bedded with the aid of a rubber mallet.
  • Lift and replace random cladding to ensure that 100% contact is being achieved between the cladding and adhesive (no voids behind cladding).
  • Back buttering of Revelstone cladding is recommended where the back of the cladding product surface is irregular or when cladding in awkward locations.
  • Remove excess adhesive from joints and cladding product before drying has occurred. The minimum joint width for Revelstone cladding is 2mm. Please take extra care when you butt joint the cladding.
  • To cut the product it is necessary to use a Diamond Blade with an angle grinder. Be aware that some of the products have steel re-enforcing. The correct safety gear and protective clothing must be worn at all times i.e. gloves, dust masks, safety boots, etc.

28.5      PROCEDURE TO FOLLOW FOR MORTAR APPLICATION FOR REVELSTONE CLADDING

This is recommended when laying certain of our Random Cladding.

  • Ensure that the surface is not friable and that all laitance, dust is removed. Do not wet the surface before cladding commences.
  • Use a mortar mix (3 parts sand to 1 part PPC Cement) mixed only with clean cold water. Apply to the surface to a minimum bed thickness of 10mm.
  • Spread only enough adhesive for each individual piece. Should a thin film (skin) appear on the surface of the adhesive, re-agitate with trowel before bedded.
  • Press the dry Revelstone cladding firmly into wet mortar with a twisting action. Product must be bedded with the aid of a Rubber mallet.
  • Lift and replace random cladding to ensure that 100% contact is being achieved between the cladding and mortar (no voids behind cladding).
  • Back buttering of Revelstone cladding is recommended where the back of the cladding product surface is irregular or when cladding in awkward locations.
  • Remove excess mortar from joints and cladding product before drying has occurred. The minimum joint width for Revelstone cladding is 2mm. Please take extra care when you butt joint the cladding.
  • If and when required the cladding can now be grouted – using a mortar mix (3 parts sand to 1 part PPC Cement). Caulk the joints with the use of a sponge and a pointing tool depending on the desired finish. The use of a sponge with clean water is essential – please keep Cladding clean at all times during this process.
  • To cut the product it is necessary to use a Diamond Blade with an angle grinder. Be aware that some of the products have steel re-enforcing. The correct safety gear and protective clothing must be worn at all times i.e. gloves, dust masks, safety boots etc.
  1. SEALING OF TILES/PAVERS – OUTDOOR

The following guideline is recommended by Revelstone as the manufacturers, as the correct way to seal there cast stone products. However it must be understood that as Revelstone does not provide a service of sealing tiles, the company cannot be held responsible for any defects which may arise from incorrect sealing by contractors or clients. It is important that only experienced installers and contractors are used; do not use installers who are unfamiliar or inexperienced with cast stone products.

Our products are ideal for outdoors and can be left untreated; allowing the product to naturally weather and wear with time, reflecting the natural hues of the original stone it was copied from.

It is only recommended that our products are sealed outdoors depending on your chosen colour/situation of product or your personal requirements. It can however only serve the product well and will enhance the appearance of the product should you not want to wait the months needed for the product to naturally weather and wear.

 

29.1      PREPARATION

  • When sealing outdoors you need the following conditions first – overcast cool weather, no direct sunlight on the area to be sealed, tiles/pavers must be relatively cool, dry, free of loose dust, etc. Do not seal tiles in the heat of the day this causes the sealer to dry to fast causing streaking, blistering and eventually the sealer will peel off.
  • It is vital that the tiles/pavers are kept clean whilst being laid by washing off with clean water and a sponge at regular intervals so as to avoid having grout/adhesive or cement stains.
  • Should the product be badly soiled or stained use acidic cleaners sparingly to remove grout and cement stains. This is however done at your risk and must be supervised by the tiling contractor or installer responsible.
  • We recommend a mix of water and synthetic acid – Barracuda – 5:1 doing small areas of less than 1m2 at a time with a soft bristle brush, rinsing off heavily with water to dilute the water/acid solution so as not to damage the pavers.
  • A “green” synthetic acid alternative – Barracuda – is recommended and is available from Chryso.
  • You must allow the tiles to dry out after tiling is completed before sealing, can take a few days/weeks.
  • If you seal the tiles/pavers before they have dried out sufficiently you will not allow the moisture in the product to escape causing Lime Bloom or what’s known as negative aggregate transparency.
  • So once the tiles/pavers have been cleaned and dried out sufficiently you can prepare to seal.

29.2      PROCEDURE

  • Get the necessary tools and products – Sealkote/Nova 5 or similar is a durable matt water based sealer to be applied with a paint roller (soft hair roller) or sponge.
  • Use a paint tray to hold the sealer whilst sealing.
  • Only when you are ready to begin sealing should the two components be mixed – if the two part Sealkote PU is being used. Sealer must be used within 1 day of being mixed, before the two components separate.
  • When applying any coat of sealer use an up down or sideways motion this will help to avoid streaking.
  • Ensure that you apply sealer evenly, avoid pooling on the surface.
  • Dilute the 1st coat of sealer – 30% water/70% Sealkote/Nova 5 and apply as a penetrating coat.
  • A few hours (2-3 hours) later once the tile has absorbed the sealer and is dry apply the second coat of sealer – 100% Sealkote/Nova 5 or similar – full strength.
  • Apply the sealer using a paint roller in an up and down or sideways motion, this will ensure it goes on evenly – avoid pooling on the surface.
  • Allow a drying time of 2-3 hours between coats.
  • You will need to do at least 2-3 coats depending on usage and how dry the tiles or pavers are.
  • 5 litre container will cover approx. 40m2.

It is not recommended that you seal around pool areas, steps or entrances as it does decrease the tile/pavers non-slip nature – although as the seal breaks down it becomes more non-slip. You will need to reseal the area every 12-18 months depending on usage and areas exposure to the elements.

 

Should you require your tiles to be professionally cleaned and sealed please enquire with a member of our sales staff.

 

  1. SEALING OF TILES – INDOOR

 

The following guideline is recommended by Revelstone as the manufacturers, as the correct way to seal there cast stone products. However it must be understood that as Revelstone does not provide a service of sealing tiles, the company cannot be held responsible for any defects which may arise from incorrect sealing by contractors or clients. It is important that only approved or recognized installers and contractors are used; do not use installers who are unfamiliar or inexperienced with cast stone products.

When using any of our products indoors to maintain the desired finish, you will need to seal and polish. This will have to be done for the entire life of the floor and if followed your floor will maintain its finish and endure well into the future. It is very important to take this into account when deciding on whether to use internally. The procedure is outlined below.

 

 

 

 

30.1      PREPARATION

  • Once the tiles have been laid and cleaned sufficiently removing all loose dust and grout, cement or adhesive marks you can prepare to seal the tiles.
  • It is vital that the tiles/pavers are kept clean whilst being laid by washing off with clean water and a sponge at regular intervals.
  • Should the product be badly soiled or stained use acidic cleaners sparingly to remove grout and cement stains. This is however done at your risk and must be supervised by the tiling contractor or installer responsible.
  • We recommend a mix of water and synthetic acid – Barracuda – 5:1 doing small areas of less than 1m2 at a time with a soft bristle brush, rinsing off heavily with water to dilute the water/acid solution so as not to damage the pavers.
  • A “green” synthetic acid alternative – Barracuda – is recommended and is available from Chryso.
  • You must allow the tiles to dry out before sealing, this can take a few days/weeks.
  • The first step is to get the necessary tools and products, i.e. sponges or a propad, clean paint tray and your sealer – Sealkote/Nova 5 and Fantastik Floor Polish by GNLD (www.GNLD.co.za or contact us to purchase).
  • So once the tiles are clean, cool, dry and do not have any direct sunlight on them, you may begin the sealing process.

30.2      PROCEDURE

  • When applying any coat of sealer use an up down or sideways motion this will help to avoid streaking.
  • Ensure that you apply sealer evenly, avoid pooling on the surface.
  • Dilute the 1st coat of sealer – 30% water/70% Sealkote/Nova 5 and apply as a penetrating coat.
  • A few hours (2-3 hours) later once the tile has absorbed the sealer and is dry apply the second coat of sealer – 100% Sealkote/Nova 5 or similar – full strength.
  • At this point pick a few random tiles and pour water on the surface if the water is absorbed or the tile changes colour a third coat of Sealkote/Nova 5 or similar may be necessary – full strength.
  • The next day you can apply the first coat of Fantastik Floor Polish or similar – full strength do not dilute.
  • A few hours (2-3 hours) later once the tile has absorbed the polish and is dry apply the second coat of polish – full strength.
  • For future maintenance of your tiles apply the Fantastik Floor Polish every 6-8 weeks in high traffic areas e.g. kitchens, bathrooms and entrance halls and every 6-12 months in low traffic areas. This will protect the seal on the tiles ensuring long term durability against staining, marking, scuffing, etc.

Fantastik Floor Polish – is a modern, water based polymer emulsion used as a floor polish to impart a durable and enduring lustre. The directions for use are on the bottle.

Going forward you will need to judge for yourself how regularly you need to apply the Fantastik Floor Polish in your home. If you follow the above recommendation you should never need to seal your tiles again as the Fantastik Floor Polish will protect the seal and your floor will remain clean and have an enduring lustre well into the future.

Should you require your tiles to be professionally cleaned and sealed please enquire with a member of our sales staff.

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