Screwfix - Rapid-setting waterproof cement. Choose from top trade brands. There is no insulation or a cavity. Screwfix customers rate this product 4. 1 Preparing the substrate. Morning all, I'm looking to render 3 garden walls, all made from 7. My qustion is: Will I need to use a (waterproofing?) additive to the render mix, particularly for the inside surfaces of the drain. Universal Protector Water-Repellent Spray. Order online at Screwfix. £ 21. Free returns. Stops freeze thaw damage. I would have used a 'Monocouche Render' like Weberpral M, or K Rend both are coloured all the way through, available in many colours, saves painting. Inc. 54 Inc VAT. 6/5. Click & Collect. If you bought the paint you can get a refund on it. Buy Cement Mix at Screwfix. too much suction 4:1 will do you. FREE next day delivery available, free collection in 1 minute. It’s in such bad shape that you can push your finger quite easily into it and it comes away like wet sand. I then intend to paint on something called a cementone aquaprufe, which is a cold applied bitumen to the wall, and then finally dot and dab standard 12. Stormdry Masonry Protection Cream is a colorless waterproofing cream for application to brick, stone, mortar, render and masonry. Order online at Screwfix. Screwfix Community Forum. Protect and reinforce joints. Contains primer, coating and waterproof jointing tape. There are only three walls as it backs on to to a neighbours shed. . 5 Ltr. Touch-Dry in 6 Hours, Fully Dry in 24 Hours. Delivery 7 days a week 60 days free credit available. Applying the board directly onto the membrane with thin adhesive and mushroom fixings. I have heard i need building paper and mesh before i render. Customer lives close to coast will the salt in the air have any impact on my. Buy Resins at Screwfix. Ready to Use. 25 Inc Vat. The render would or should have had a waterproofer added to the mix when rendered so it will be waterproof, as the render is new it is not necessary to apply a stabilising solution. But overmix using Fairey and the mix becomes a foamy mass of bubbles with very limited final strength. Sika Rendagrip External Render Bonding Agent Red 10Ltr (8831P) (10) compare Waterproof One Coat Application Red Colour Indicates Coverage £54. The wall has a cavity with no insulation and about 150mm above the damp course. Quick-Dry Stabilising Solution. I know this is not the best route to go in waterproofing a wall normally. com. Screwfix Community Forum. Because it's durable, weather-resistant and breathable, Weber one coat render is particularly useful for outside areas that are exposed to the weather, like garages, conservatories or garden walls. Extra grip, render bonding agent that contains a fine aggregate to provide an improved mechanical key before applying render on external concrete, blockwork or brick. £ 28. Overcoat with any. Fischer FIS V Zero 300T Injection Mortar 300ml (498HL) compare. Depending on the ratio you used for waterproofer/water in your mix you should find that the render is virtually weatherproof. 24 kg. 25 Year Waterproofing from a Single Coat . Home Forums > Screwfix Community Forum > Builders' Talk > Waterproofing. Order online at Screwfix. Dow 791 Weatherproof Silicone Sealant Anthracite 310ml (44836) (42) compare. This'll make sure it's drawn into the render to provide a nice primed surface. For Interior & Exterior Use. Buy Fixings & Fastenings at Screwfix. Screwfix Community Forum. Free next day delivery available. 4 use mechanical fixings to fix this system to the wall. MyPetFrog likes this. TDav Member. If I render with febond sbr sand and cement render then I can use 10mm travertine tiles. the problem comes because one of the old walls has the damp course below of extension. Often soft in texture, when applied these substances harden. Delivery Next day available. Product Type. 3) Use an additive in a render mix, like SBR to act as a total waterproofer for walls and ceiling, then lay the concrete floor as above. Anyone able offer advice on what type of paper i need as I can only find something called tyvek and the images seem to be using it. I would then like to render it. Product Details. Will not corrode steel reinforcement (brick ties etc. 99 Inc Vat. common sense tells you that this system will go nowhere and it wont. Find your nearest Screwfix store and up to date opening times. Single application waterproofing compound for emergency repair and general maintenance of most roof types. • Air entraining plasticiser • Prevents shrinking and cracking during curing • Water reducing • Chloride freeMortar plasticiser for stronger, easier to use brick and block-laying mortar. Water & Weather-Resistant. Use on brick, concrete and stone. The render on your house has cracked due to a number of reasons, it could of been done in poor weather, or not enough mechanical key. Apply a bitumen or Pitch Epoxy coating from the outer edge of your 'slope' all over the existing dpc and up the wall 150mm. Do i use waterproofer in both the base render and top render? My plan was to prime the brick first with 3:1 unibond and then 1:1 unibond as i offer up the base render. Protecting from rain, frost, ice and snow, this product is ideal for providing extra protection to your home's exterior. The waterproofer acts as a plasticiser also, in fact with a rather coarse sand it is a far better plas than plas! A 10-15mm floating coat is good, use a length of 2x1 roof lath to rule it straight then when it has taken up enough float it all filling in all the slacks (holes) then finish with a damp rung out sponge (optional). Went on white. I have a small area (2. 3. VAT. Phil the Paver, Nov 22, 2014. unless you do a lot of good drainage behind it and seal it with something more waterproof than render. It sets to a rock-hard finish and can be overcoated in 24 hours. Will this be enough. Ideal for emergency repairs, filling and patching. 4m²/Ltr. Order Sandtex Quick-Dry Stabilising Solution 5Ltr at Screwfix. . Buy online & collect in hundreds of stores in as little as 1 minute! 30 day money back guarantee. Hello. You can use metal beads for all windows and angles and drip beads for your bell. G4 Pond Sealer is a moisture cured polyurethane which forms a non-porous seal on concrete rendered ponds, G4 pond sealer uses the moisture in the air and the render to harden, G4 pond sealer can be applied to slightly damp surfaces, but it is important that the render is sufficiently dry to be porous so as to enable the first coat of G4 pond sealer to bond and obtain a. this mock tudor job i am doing has part of the render overlapping the lead flashing along the biottom. PVA Sealers. Covers approx. Click & Collect. Right have got to render the side of a concrete pad and would like to mix a rapid hardener and frost-proofer additive together with a waterproofer additive to use in the mix. Delivery. Everbuild’s Black Jack paint is perfect for. Easy returns, with 30 day money back guarantee. Sika Bond SBR+ Waterproof Bonding Agent and Mortar Admixture - 25L (6) £99. Go all over it and knock off the loose stuff. 8. Phil. What depth should the battons for the scratch coat be? I was looking at 10-15 mm deep off the wall. render SamBeevor96__ New Member Renovating an old cottage which has penetrating damp, looking to apply an internal sand and cement render adding thermoseal/waterproofer to stop the damp coming through. Delivery. com. com. Grey colour when dry. Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders. Buy Exterior Paints at Screwfix. Order Bostik SBR Admixture White 5Ltr at Screwfix. Acrylic frame sealant is ideal for internal use to fill. £179. The range has been hand selected from established brands, who manufacture durable products. The proceedure is:-. . 3. Nail straight pieces of timber vertically & horizontally as required to external corners, window & door reveals. 99 Inc Vat. Contains enough to waterproof a standard sized shower. Waterproof PVA. I understand that the waterproofer will do what it says on the tin, but only if in the first coat and then covered by another coat of render. • Prevents water penetration in a single coat • Improves resistance to dirt, oil and stains• Seals and stabilises non- structural concrete• Sealer for internal concrete floorBostik Concrete Sealer is a quick drying, low VOC water based sealer that seals and. i have a freshly scoured brick wall, having recently removed half an inch of old powdery paint layers. Good Luck. the. Suitable for brush application only. com. Product Type. A-. Do what the gardener should have done. Dig out the soil behind the wall, put a sheet of dpm against the wall, drill through the wall at low level every metre and fit a pipe to act as a drain hole, part fill the trench with grave, put soil in the rest, trim the dpm to ground level and re-render. For a clear coating over bricks to allow. #10. For Interior & Exterior Use. When dry paint to match. Have look at Weber Weberend Aid made for smooth surfaces, will provide a key. Buy online & collect in store in as little as 1 minute. I don't see why not to both questions. Discussion in 'Builders' Talk' started by ssss64, Jan 23, 2007. Cement based coating for preventing water and damp penetration in walls and floors. the waterproofer will not work!!!!!the top coat must be at least 6 parts WASHED sharp sand 1 part lime 1 part cement {opc}. This sealant is suitable for for repelling water on porous surfaces. Wait a few minutes, feel the pva. This is your 'drip-tray' separating the above and below dpc areas. gauge everything put the water in the mixer then add the lime to the. 54/L quantity Collection Set Store. My builder is advising to render and d&d, but this seems like more work to me for no real reason. Unibond PVA is renowned for being the only BBA accredited PVA in the UK, and we stock Unibond super PVA with a high bond strength for gluing ceramic tiles, carpets, plaster and much more. Forms a transparent, waterproof barrier. , Apr 8, 2005 #2. After starting he informed me that. Simple to use, just mix with water. Phil the Paver Screwfix Select. Contains enough to waterproof a standard sized shower. After application by brush, roller or spray; Stormdry provides breathable protection against rain penetration on exterior weather-facing walls. A couple of potential problems come to mind; concrete on a stud wall will almost certainly crack and fracture over time - I think. Buy Aggregates & Chemicals at Screwfix. Is it okay to press on with the inside works (batten out, 25mm celotex and 12mm plasterboard) before the rendering is complete? The renderer is proposing to do a scratch coat and then a top coat with waterproofer mixed in, and then it will be painted with something like Dulux Weathershield. I'd get rid of the rusted steel regardless of what you do (unless you tile) as it will bleed through render etc BMC2000 , Oct 10, 2017Hah. Sets in 20 minutes. View all: No Nonsense Cement Mix. One Coat Renders is a high quality, pre-blended render mix, for single coat application on solid substrates such as brickwork, blockwork and concrete, in moderate exposure conditions. £21. dj. The fact that it's a retaining wall means that it's going to be damp, almost by definition. Don't use sharp, builders merchants do plastering sand just tell them thats what you need. I've slapped a PVA solution to brickwork on internal walls prior to render, I GUESS that this situation is no different. The pointing needs raking out 25mm deep, and re-pointing with a 4:1 sand & lime mix. Softwashing Render. Search Activating the button will move focus to the expanded search input fieldContains primer, coating and waterproof jointing tape. 1 originaly and it was too rough to work with,managed to get 2 coats on 1 area straight away no probs. Sika Waterproof Coating Grey 5kg. Buy Jointing Tape at Screwfix. 90m x 50mm. Is either expanding foam, or white silicone OK in this situation (inside of course, render with waterproof mix on the. Light grey colour when dry. In the presence of water these swell and block the capillaries and pores in the applied sand / cement renders, screeds and mortar to provide an effective barrier against the transmission of liquid water with a proven track record for over 100 years. I know I need to attach mesh to the surface, but a friend has told. As per usual there are so many different videos etc on the web it can get confusing. The moisture will force its way out eventually. Some wall primers create barriers to stop. i know its best to take the wall back to brick,but should i add a waterproofer to the floating coat (common sense says yes) as per external render,and if so what type? i have'nt been. You've done the right thing by removing the render to above the DPC, if yo rendered the lower apart again you'd have to leave a 1" gap which would fill with crud and lead to the DPC being bridged again. 30 day money back guarantee. com. Will fill without depth limit and repair without formwork. Stops penetrating damp on brickwork and masonry. This sealant is suitable for for repelling water on porous surfaces. Designed for use in fully. Screwfix customers rate this product 5/5. Suitable for 2. Evening guys. High bond strength. Light Grey. Provides a hard wearing, protective layer on wood, metal and cement. 5°C. So I. 5055492702975. So you need to fit a waterporoof membrane undernearth your inner skin over the studding. Waterproof. If you are going ot paint it, use a. Tags:. Click & Collect. £21. Cut back on the admix a little, mix it up stiffish then allow the drum turn for five minutes and let the admix do its stuff, the mix will reach a nice wet consistancy after a few minutes. Secondly, if you did render them then a finish coat of plaster would be nigh on impossible to get right as sand would inevitably break away from the render into the top coat as the plaster is applied. Try on a couple of places (bottom of wall more likely to have weak adhesion). ★★★★★ ★★★★★. koolpc and SeaJay like this. Odourless & Solvent-Free. Reduces surface absorption. £9. How many coats do you reckon fort he top coat?Water resistant bonding agent for external rendering and screeds; Admixture for concrete repair and tile fixing mortars; For improving resistance to abrasion, chemicals and oils; Reduced shrinkage and cracking; Improved workability, waterproofing and mechanical properties; Approx consumption : 5 - 7 Litres per 25Kg cementOrder online at Screwfix. 1. Considering that you nickpuff seem to be the only person that is unable to decipher plain English I will help you out a little. 5 apply new finish. 80. but the property is in a really exposed position in the Penninnes, built of sandstone, it is grade 2 listed, and the mortar it is pointed with. FREE next day delivery available, free. alrite mate, if the blocks bricks are sound(no cracks in joints or the bricks)you should wet down the surface(not to much)then scratch coat using a waterproofer and plasticiser,either when this has took up enough or the next day apply second coat again using plasticiser and you should be ok!(plasticiser helps retain air in the mix and. • High water and rain resistance • Water reducing • Provides long term water protection• Chloride free New Sika sku available (code 98821)Long term water protection to mortar, concrete and rendering. PermaSEAL 3 Damp Proof Membrane Kit 10m². Paint it on and when its dry, do it again, as the wall has sucked all the moisture from the render that you had put on earlier and that is why it's 'crumbly'. Suitable as a damp proof membrane on solid concrete floors. Sharp sand coarse and fine, lime and cement in 2 : 2: 1 :1 ratio for bottom coat ( scratch ) coat, with waterproofer. DIY_Has123 Active Member. Suitable for a Variety of Applications. These can be used for a range of projects, whether it is to create a flat a smooth surface with a compressive strength, preventing water and damp penetration in walls and. The wall has a cavity with no insulation and about 150mm above the damp course. There are many external finishes - Finedown (smooth as in photos), Tyrolean, Pebble dash etc. Â, Dec 1, 2007. The pointing needs raking out 25mm deep, and re-pointing with a 4:1 sand & lime mix. £2. Home Tags > rendering. FREE next day delivery available, free collection in 1. . I know when we do the top coat it's gonna suck the moisture out like crazy. Buy Cement Mix at Screwfix. EVeryone seems to have their own opinion and hardly. This waterproofer penetrates deep into the brickwork whilst still allowing the surface to breathe. Light Grey. 49. Home Forums > Screwfix Community Forum > Builders' Talk >I will need to clean the base coat which is solidly attatched to the block wall and scratch it, probs with a grinder and apply a new top float coat using a mix of sand / cement / waterproofer and maybe lime as per this sites recomendations. Microseal Technology. There is a white crystal deposit under left on the exposed render. Adhesives are used for bonding a variety of materials. Im an old skool plasterer ( 34 years old ) And when i am rendering i use sand,cement and waterproofer/feb. He ended up really busy so we decided i'd. Choose from top trade brands. Tarmac Once Coat Render is a pre blended render, just add water to apply. e. Free next day delivery available. ST100 104Ltr Spill Tray 795mm x 1195mm x 185mm (769HJ) compare. They do say that a suitable bonding agent could be applied prior to the render scratch coat. Good luck. It is a solution for nothing. I'm putting a corner shower into the bottom floor (concrete pad) of my house. the rendering is the easy bit. Product code: 139057. . £7. Order online at Screwfix. The 2nd. The bottom line is you require a waterproof wall; your solution of replacing the existing render with new would still require a waterproof paint, so go the whole hog and improve the insulation value of your wall, you will still get your new render be it 50mm further out, the bonus is you will save on your heating cost by reducing the heat loss. And all this after the walls were skimmed and painted. 99 Inc Vat. Mix approximately 4 to 5 litres of water per 25kg bag using an electrically driven mixer until you achieve a workable consistency. Primer Paints. Not available for delivery. 310 ml. Volume. But i have a job to do, and i am considerong using sbr bond on it first, as im always interested in new methods. Overcoat 48-72 hours after application with any. Most traditional renders are applied in two coats; a base coat and a topcoat. The render around the mock Tudor beams on the outside of a property I am looking at is cracked. £45. 69. Lead-Free. Discussion in 'Builders' Talk' started by Bungditin. Suitable Application. FREE next day delivery available, free collection in 1 minute. This process is best carried out using a pumping system and water fed pole with a brush attachment. Order Bostik SBR Admixture White 5Ltr at Screwfix. Ready to Use. Covers up to 4m². To ensure thorough waterproofing of your exterior walls, you need a coating that will actively repel water. The old one is of crumbling brick and an (equally crumbling) smooth cement render. 4-1 first coat and 5-1 second coat 3-1 is to strong it will be to brittle and might crack. Initially it was agreed that the old render would be removed and a new render put on the bricks. For Interior & Exterior Use. Reduces water permeability. If others have done it - then they have done the wrong thing. Latest Offers At Screwfix. We are ready for your call 24/7. Many can be painted over to match the colour of your windows or frames. Febtank Super. I know this is not the best route to go in waterproofing a wall normally. Reduces water penetration without acting as a vapour barrier. Hundreds of stores nationwide. 1st coat scratch 1:1:4 (OPC:lime:sand), 2nd coat 1:1:5. Delivery Next day available. Truth be told I've already bought six 10L tubs of Sandtex and the stabilising solution, about over a year ago. qwas123 Screwfix Select. Mr. Screwfix Community Forum. Order online at Screwfix. I know I need to attach mesh to the surface, but a friend has told. 40 per KG. Buy Plastering items from Screwfix. Screwfix Community Forum. all external work is sand and cement render and is a two coat process the frirst coat applied is called a scratch coat and is about 9. Phil the Paver Screwfix Select. Deme23 New Member. Screwfix Community Forum. Need to paint render which was applied about 4 years ago apparently with waterproofing element included. Neosparks, May 30, 2006. Using a small grinder, cut out all loose chunks of render - & open all sketchy cracks. Seeking a bit of advice, been waiting for my plasterer to come and do my external rendering. Silicone render and waterproofing for penetrating damp. Choose this handy pre-mixed sand and cement render from Weber to cover brickwork, blockwork, concrete and other suitable surfaces. Delivery 7 days a week. waterproofing paint. cement board and the masonry wall must be wiped down to. Pay your way. Strong fibreglass mesh tape that helps reinforce plaster coating and protects it from cracking. The process involves using a detergent to chemically clean the render using next to no pressure at all. 1-2hrs Approximate Setting Time. He uses plastering sand and cement mixed at a 3:1 ratio with waterproofer added, no lime or plastisiser. Completed an extension last summer and the exterior walls were cement rendered the usual way with waterproofer etc. The original poster asked if there was any reason he should not add lime to a mix with a waterproofing plasticiser additive and not as you are labouring under the impression of, a waterproofer anda plasticiser, nor any. Most if not all are painted with mansonry paint, (Specialist applications excepted, eg. Seeking a bit of advice, been waiting for my plasterer to come and do my external rendering. Low toxicity. The earth is retained in the garden with another wall. You could remove all the damp affected render and plaster back to stone and then render with a 4:1 mix of sand and NH lime. (£5. Mixing: Add the SBR undiluted to the mix and then adjust the consistency with clean water. Hazardous Product – Not available for Mail Order/ TCND outside of Mainland UK. B&L, Choose one or the other. Buy Cable Sleeving at Screwfix. (42 products) Gloss paints are used to provide a high shine finish to interior or exterior surfaces. 95 Ex VAT. I recently bought a bungalow, it was built 1970. Mix it strong say 3:1:1 or 3:1 plus plasticiser. Discussion in 'Builders' Talk' started by Victor Lek, May 24, 2022. The problem I am having is that the waterproofer in the scratch coat is not allowing the finished coat to go off for up to 8 hours ( wall in shade. (£1. Pieces in Pack/Case. The Screwfix Community Forum strives to be a friendly and supportive place, where you can share your expertise, ask others for theirs, and enjoy ‘socialising’ online with people who share a common interest. Can anyone give me advice on rendering over Medium Density Blocks for an external garage. These kitchen areas can be improved by externally insulation, with either Cellotex or Kingspan, and then using metal lathing to render a good cement/lime roughcast to match the existing property. Discussion in 'Builders' Talk' started by Pagloss, Apr 6, 2006. Then sharp sand fine, lime, cement in 6: 1: 1 ratio as top coat. If the wall is dry (unlikely this year!) lightly damp it without soaking it completely before applying the. The first coat is known as the scratch coat, and is applied in a thin layer and left to cure. Waterproofs Plaster, Plasterboard,. One idea was maybe to do a slurry of waterproofer and render and paint in on with a brush and once that becomes tacky, to add the 1st coat / scratch coat? Not sure what product to use though for waterproofing purpose, pls advise! Cheers. G4 Pond Sealer Clear. 2nd coat (floating coat) 4:1 sharp sand with waterproofer as above etc. I have been quoted between £600-£800 to re render the shed (just got the one quote so far so I have no idea if I can get this done cheaper)Installation on brick walls. Thermalite hedge their bets somewhat on their finishes section. FREE Click & Collect within 30 minutes. Ideal for internal and external use as a waterproof render, it is suitable for use on walls prior to plastering and on floors prior to self-levelling. 19 each (Inc. Click & Collect in as little as 1 minute. Render, Bricklaying and Floor Screeds. 1/ clean all walls of loose material. After that, 2 topcoats of a good quality masonary paint, and job done. Will fill without depth limit and repair without formwork. I intend to apply sandtex stabilising solution and then sandtex fine texture paint which say's it has a breathable waterproofer in it. Covers up to 4m².