Screwfix customers rate this product 4. (the actual water drainage path, which looks like its made of half a sewer pipe is actually in good condition, so its only the. FREE next day delivery available, free collection in 1 minute. (£5. Never heard of the 4 weeks / mould thing before. The PVA glue can be dilated up to 5:1 with water for maximum use. PAGE 1 OF 2. Deme23 New Member. Shapeable to Repair Without Formwork. General purpose, solvent-based. Ready to Use. But I'll have a go. One Coat Render can be used For interior and exterior use and has been formulated for single coat. This is the only part on the whole house which shows this and I belive I. Light grey colour when dry. When diluted with water it produces a gauging solution for improved adhesion, workability and waterproofing of mortars and cementitious mixes. Discussion in 'Builders' Talk' started by Bungditin. Suitable for new or renovated substrates, either unpainted or painted: gypsum plaster, old painted surfaces, cement, concrete, breeze blocks, bricks, stones, glass and. Buy Exterior Paints at Screwfix. you can hose down the scratch coat just before you. Cementone Freeflo Plasticiser is a retarding waterproofer and plasticiser. It seems a lot of dampness for such a small amount of cracking but I suppose this is the best place to start to reduce the. ssss64 New Member. You can use metal beads for all windows and angles and drip beads for your bell. Best chech out the additive that has been used with the manufacturer. Features include multi-pockets, adjustable designs and reflective tape so that you can be seen. It is a process that helps make an object or structure waterproof or water-resistant, meaning it remains relatively unaffected by water. Tarmac One Coat Renders can be applied with a trowel of float. KIAB Super Member. Sealing porous areas and extending coverage with paint sealer will ensure a longer lasting coat. Suitable for 2. I would get your render on soon so the block work can dry out. Most if not all are painted with mansonry paint, (Specialist applications excepted, eg. com. IKOpro Synthaprufe Trade is easy to apply and provides damp proofing for concrete floors, foundations and masonry walls below, at or above ground level. Use on Plasterwork, Skirting Boards, Windows & Door Frames. poolthetool is spot on. So I. Hello. Designed to be used for plasterboard internal corners. Cold & Heat-Resistant. Choose from top trade brands. Breathable masonry paint is essential for waterproofing your exterior bricks while allowing moisture to escape from inside your house. Handyandy, With your technical knowledge of paint it is a relief that you don't work as as brain surgeon with an equivilent knowledge of neurology. UK call centre ready for your call 24/7. 4:1 with morticiser for scratch you can float next day with 5:1:1 sand, cement, lime + waterproofer in water butt. 80. #4. com. Home Tags > waterproofer. There is a white crystal deposit under left on the exposed render. Extremely durable and will adhere to any substrate for filling and repairs with no depth limit. . don't pva the wall either first coat with waterproofer in and second coat with waterproofer in also. (we could render the side but not the back). unfortunately came home yesterday and all covered in scratch coat with no waterproofer. The paint has been fine until this very wet spring, when it started to bubble and peel in large random areas. + fill all gaps with new expanding foam. Extremely durable and will adhere to any substrate for filling and repairs with no depth limit. Hazardous Product – Not available for Mail Order/ TCND outside of Mainland UK. That allows the material to be worked easier but as you may be aware render doesnt take a lot of working before it falls off the wall. Its faced brickwork which has been painted, plan is to bead it, mesh it ist coat 4:1 with waterproofer 2nd coar 5:1 no waterproofer. 2 apply a suitable rendering adhesive (Powerwall make one but so do others it is like a polymer based tile adhesive) 3 bed a fibre glass mesh in the adhesive and trowel flat. Discussion in 'Builders' Talk' started by pete12, Jan 26, 2006. Phil the Paver Screwfix Select. Acrylic frame sealant is ideal for internal use to fill. Product information. #2. This is called Feeze-Thaw action, which allows more water in, gradually. Touch-Dry in 6 Hours, Fully Dry in 24 Hours. I'm not expecting a smooth 'craftsmans' finish as other areas of render have a rough finish but look perfectly acceptable once painted. 3/when dry, three coats bitumen. 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 first, just use a hand brush to go over the surface to remove any dusty muck off the surface. Once Stormdry has been applied to the wall surface in a single coat and will permeate deeply before curing to form a. 41 Per unit £1. Product Type. PAGE 1 OF 2. Discussion in 'Builders' Talk' started by ssss64, Jan 23, 2007. This is especially important if you apply a thick traditional multi-coat plaster. Forms a transparent, waterproof barrier. Volume. The process involves using a detergent to chemically clean the render using next to no pressure at all. Will fill without depth limit and repair without formwork. 5mm thick maybe more on old uneven walls it has a waterproof addative in the mix. Tarmac Once Coat Render is a pre blended render, just add water to apply. Screwfix Community Forum. I added Sika MaxMix concentrated integral waterproofer, but not sure I used enough as I added it to the gauging water and not the weight of the mix and the sand was damp. Buy Additives & Plasticisers from Screwfix. 1. Construction Project Manager, May 29, 2015. ie. A. B&L, Choose one or the other. Order Sandtex Quick-Dry Stabilising Solution 5Ltr at Screwfix. 400 ml. 99 Inc Vat. The lime render was there for a reason, its breathable, lobbing in cement isn't a good idea, it may cause problems with moisture depending on the wall, you can buy a lime render mix. 3. 202 Integral Liquid Waterproofer is a liquid additive that provides long term water protection to mortar, concrete and rendering. The pointing needs raking out 25mm deep, and re-pointing with a 4:1 sand & lime mix. shazauk New Member. Scratch coat is 1 part cement, 1 hydrated lime, 5 plastering sand, with fibreglass mesh embedded. Delivery. VAT) Quick. Buy Cement Mix at Screwfix. Only way to test if it's still wet is with a moisture meter. I have followed the general advice given, 4 : 1 sharp sand / cement with the recommended amount of combined water-proofer / placterciser for good measure for the scratch coat. 12-16m²/Ltr. £11. Depending on the ratio you used for waterproofer/water in your mix you should find that the render is virtually weatherproof. Ask a question. K Rend). com. Volume. I want to chop off about 500mm from the wall to widen the path and then render the cut end to match the wall - so a small area to render, approx 900mm high by 2 brick widths. The moisture will force its way out eventually. They have for example render products which are waterproof, yet breathable. too much suction 4:1 will do you. com. I recently bought a bungalow, it was built 1970. Choose from rapid or fast set cement for small commercial or domestic jobs. Order online at Screwfix. These so called hydrophobic coatings come in a range of different types, and offer all of the qualities that are needed to prevent the issues mentioned above. render on lead. Click & collect in stores nationwide. 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. Screwfix customers rate this product 4. good heavy scratch will help to reduce the suction, dont leave the floating coat after the scratch too long, very important that you reduce the suction or your scratch will turn to dust when it dries out too fast. 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. He ended up really busy so we decided i'd. Login to save for later. Is unibond OK 2. Home Forums > Screwfix Community Forum > Builders' Talk > Render Waterproofer. Most if not all are painted with. Not available for delivery. the. 99 Inc Vat. Developed to repair damaged masonry between brick and stonework. Hazardous Product – Not available for Mail Order/ TCND outside of Mainland UK. com. After application by brush, roller or spray; Stormdry provides breathable protection against rain penetration on exterior weather-facing walls. 1 remove lose stuff. By getting the finish coat on within 8. Apply a bitumen or Pitch Epoxy coating from the outer edge of your 'slope' all over the existing dpc and up the wall 150mm. Totally forgot as was so busy myself and only had a spare few days to do it. Order No Nonsense Waterproof PVA 5Ltr at Screwfix. I’m leaning more towards K rend, as it’s silicone and. yesterday morning i put on a scratch coat, with rendering sane and castle cement ( ordinary portland cement it say in the bags) i used a 5-1 mix and i mad sure but using buckets, normally i would cut a bag in. Wet room Kits consists of a mix of products which are needed when creating an open plan showering area. It sets to a rock-hard finish and can be overcoated in 24 hours. But overmix using Fairey and the mix becomes a foamy mass of bubbles with very limited final strength. Order Fabsil Universal Protector Water-Repellent Spray 400ml at Screwfix. What depth should the battons for the scratch coat be? I was looking at 10-15 mm deep off the wall. Scratch coat is 1 part cement, 1 hydrated lime, 5 plastering sand, with fibreglass mesh embedded. Customer lives close to coast will the salt in the air have any impact on my. Click & Collect. 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. Crack & Frost-Resistant. Styrene-free, vinylester-hybrid, high performance mortar for the most demanding requirements. Creates smooth, easy to work with mortar. 'A' way to do it is this. Colour coded for easy identification. • 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. Been a plasterer /damproofer for 28 years and yes you can use SBR and Paint over it but will need to give a sand or LIGHT. And all this after the walls were skimmed and painted. £45. View all: Bostik Specialist Paints. He came back and redid that area, and it leaks there worse than ever - it's just like a sponge. Click & Collect. UK call centre ready for your call 24/7. 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. Exterior rendering is, I think, a more manageable beast that, say, internal skimming. The fine aggregates are suspended in a unique waterproof polymer to ensure easy application by roller or brush. 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. Free next day delivery available. final coat of render needs to. Latest Offers At Screwfix. slapiton New Member. The wall is not tanked with any waterproof membrane. If the wall is dry (unlikely this year!) lightly damp it without soaking it completely before applying the. Float at 5:1:1 Builders sand : OPC : LIME with waterproofer in the water How does that sound? 2. 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. It's like comparing a totally waterproof jacket costing £500 with a 'showerproof' jacket costing £25. Before adding any render, ensure the wall is damp to the touch, but not running with water. Sometimes i use wire ( render lathe to all you young spreads ). £9. This would be better off in plastering forum. Insulates and protects wiring. You use a wire scratcher to form a key in this while its wet to form a good key for your second coat. Delivery. A friend has given me some acrylic render (premixed tubs 25kg) which is a topcoat, and more than enough to do the job. Getting the mix spot on is the key!Stormdry is a colourless [1], breathable, water-repellent treatment for brick, concrete and stone [2] walls. Sandtex Ultra Smooth Masonry Paint Pure Brilliant White 10Ltr (23771) (573) compare. Ideal for emergency repairs, filling and patching. For Cement Based Mixes. 2: Hydrophobic Coatings. Home Forums > Screwfix Community Forum > Builders' Talk > Help with Rendering please Discussion in ' Builders' Talk ' started by mikethesmoke , Apr 26, 2009 . I've heard bad things about Sika, re: not being suitable for moxing in a cement mixer: online at Screwfix. £21. Order online at Screwfix. 2 coats. Sets in 20 minutes. today he's applying top coat with no waterproofer. use feb rendamix with your render (also sold by screwfix) this helps waterproof the render you can render down to the ground but I would advise a gap between 1/2 to 1" with a flare at the bottom to push any rain away from the brick the gap. roof king, Sep 17, 2010. BS 4887. Neville the tap dancing gibbon, Sep 2, 2006. Change the physical properties of building chemicals to suit the job. Sika Waterproof Coating Grey 5kg (83502) (68) compare. As per usual there are so many different videos etc on the web it can get confusing. 5 Ltr. + silcone the windows. 90. Pieces in Pack/Case. 40 per KG. Rapid-setting waterproof cement. It failed in one area, and cracked off the wall. i have a freshly scoured brick wall, having recently removed half an inch. MyPetFrog likes this. com. PVA Sealers. cement board and the masonry wall must be wiped down to. The first coat is known as the scratch coat, and is applied in a thin layer and left to cure. Will this be enough. Quantity: FREE Click & Collect within 30 minutes. Hi, I wonder if anyone can help/ offer some advice as we’re at our wits end. Big Jumbo, Jul 27, 2009. Ideal for emergency repairs, filling and patching. com. PAGE 1 OF 2. 5010214804764. Water & Weather-Resistant. The wall is an external leaf, subject to high prevailing salty winds and has had dampness for years. 24 kg. It has many uses, and is suitable for most porous. Forms a transparent, waterproof barrier. With top trade brands available, offering great quality products, you'll be able to continue working even on the. waterproof render. View all:. Interior Wood Paints. Quick-Dry Stabilising Solution. Need some professional advice on waterproofing my 3ft garden flowerbed retaining wall. £9. 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. From what I’ve read on this very helpful forum, it’s a water/salt problem. FREE next day delivery available, free collection in 1. A nightmare rendering on smooth lightweight blocks, hate it. Home Forums > Screwfix Community Forum > Builders' Talk > Damp wall render. 99Inc Vat. Can any EXPERIENCED plasterer advise if I can render over existing multi finish plastered wall with sand and cement (with added waterproofer) to level it out as its bowed? I don't want to use browning or bonding as it sucks moisture and this is an exterior solid non cavity wall. Hazardous Product – Not available for Mail Order/ TCND outside of Mainland UK. Protecting from rain, frost, ice and snow, this product is ideal for providing extra protection to your home's exterior. FREE next. com. 5Kg. 1. Hi Guys. Ok, I don't know what mix to use, whether to use PVA, or how much waterproofer to add - although all that stuff must be out on the interweb. Waterproof render for external earth retaining garden wall!!! Discussion in 'Builders' Talk' started by oggie78, Apr 7, 2009. Volume. Bonding is not a good idea on external walls, it attracts water to it. 90 Ex VAT. I know I need to attach mesh to the surface, but a friend has told. You can use any Render bonding or gripping to prep & fix all render patches - use Polyurethane sealant for filling the recently opened cracks. Hi, I am going to render round the bottom of the bay windows, would it be a good idea to use integral waterproofer? One of the bays is north facing so never gets much sun. #2. She got the guy back and he said 'oh well, it hasn't worked, you need the place tanking which. Choose from rapid or fast set cement for small commercial or domestic jobs. The inside of the wet solid walls seems to covered in wet sand and a black paint type substance as in the photos. Microseal Technology. Buy Plastering items from Screwfix. 50/Kg)Product Details. By doing it this way you have. Rub up the render with a plastic or wood float ( an off-cut of 2" x 4" will work as a float trowel) and tile straight on to it. Find your nearest Screwfix store and up to date opening times. 48. ★★★★★ ★★★★★. Fast-Drying. Bricks are non porous, that's why houses are made of them. qwas123 Screwfix Select. Waterproof. That will last. handyman 2 New Member. 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. I would add some waterproofer as a matter of routine. Most external decorative renders are painted, most have a combined waterproofer and plasticiser addidive in last coat. Hundreds of stores nationwide. 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. First of all you need to get the mix right first coat needs to be 4-1-1, 4 sand 1 cement and 1 lime and 1 cup of waterproofer. Write a review. Available in a variety of options. Go all over it and knock off the loose stuff. Waterproof. the case is, it is a kitchen area, i have plastered 4 walls, 3 dried completely. Home Forums > Screwfix Community Forum > Other Trades Talk > waterproofing internal rendering Discussion in ' Other Trades Talk ' started by woodburner , May 16, 2006 . PVA wall first. e. Provides superb weather protection for bricks, mortar and concrete. FREE next day delivery available, free collection in 1 minute. 1:20 rather than the more dilute 1:40 option. ex. Remove as much dust as you can and apply a decent coat , you may want to apply a second , then throw sand over the area of bitumen this will help key the render , the next day apply a scratch coat over area and leave until dry , apply top coat of render and set to finish. 41 Per unit £0. External wall is rendered. com. Suitable for 127mm Wide Coving. 99 Inc Vat. For External Use. 7 litres of SBR per 25kg bag of cement to give a totally waterproof render. Also with spring weather being variable in temperature, would you recommend covering. • Drying time of around three to four hours. I’m doing the patio and the. Seeking a bit of advice, been waiting for my plasterer to come and do my external rendering. It’s in such bad shape that you can push your finger quite easily into it and it comes away like wet sand. The old injection attempt has not worked, and neither has the inside attempt to render to 1m ht. Render using Lime mortar. This process is best carried out using a pumping system and water fed pole with a brush attachment. The DPC is there to stop raising damp, the rendering should be waterproof so it's not going to cause a raising damp issue, lots of houses have render right down to the ground level, though a lot of them will have a kicker plinth at the point of DPC to stop rain water running down the wall beyond the DPC, this. Charlie Far!ey New Member. Mr. The wall has a land drain behind to reduce hydrostatic pressure. AC50 Trade Acoustic Adhesive & Sealant 900ml. 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. I'm no pro on this, but have done a lot of research into it. Use a bitumous tanking primer on the clean stone internally and throw gritty sand at the wet black jack for a key when dry. The paint has been fine until this very wet spring, when it started to bubble and peel in large random areas. Let it dry for a couple days. Hi, My extension was built and rendered using a sand/cement render around 4 years ago. common sense tells you that this system will go nowhere and it wont. put your water in the mixer and then add a shovel of lime ,let it mix up for a minute and add 6 shovels of sand, half a bag of extra special cement and another 6 shovels of sand. With regards the tile adhesive Devils advocate is. This full-bodied, solvent-based paint dries quickly to form an odourless and taint-free black film – it’s suitable for metal protection as well as overcoating wood and felt. 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. Screwfix Community Forum. Can anyone give me advice on rendering over Medium Density Blocks for an external garage. Currently in Stock. DIY_Has123, Feb 3, 2021. PVA sealer is an extremely versatile, odourless, waterproof and non-toxic adhesive that is suitable for a multitude of tasks and requirements. com. 2/5. Easy returns, with 30 day money back guarantee. As it dries then rough up the surface to match the surrounding render. too much suction 4:1 will do you. Brickie might. 6 January 2021 at 10:22PM. Free returns. Screwfix - Rapid-setting waterproof cement. £59. Thanks for the help Alastair. Float at 5:1:1 Builders sand : OPC : LIME with waterproofer in the water How does that sound? 2. KA Tanking Slurry is the complete crystalline solution to waterproofing masonry and blockwork. 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. The old one is of crumbling brick and an (equally crumbling) smooth cement render. Wall fillers and flexible fillers create a clean smooth and professional finish. £3. 99. Hi handy 007 1/2. Product Details. 99Inc Vat. 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). High Bond Strength. com. White sand can be bought in15kg bags and gauged with snow cem white cement and hydrated lime for a perfectly white finish, but even so in time this will discolour and fade and will. No waterproofer in render scratch coat. If you arent going to paint over it then put the water proofing agent in the top coat. co. Thistle One Coat Plaster 7. #2. Garage, garden, whatever. Grey. Screwfix Community Forum. Presume you have slope away, try to start with nothing at dampcourse (should remain below dampcourse). The internal walls are damp from floor to ceiling and I am told by a specialist damp firm that the damp is due to the cracking. Screwfix Community Forum. . Waterproofs Plaster, Plasterboard,. Buy Aggregates & Chemicals at Screwfix. £9. The earth is retained in the garden with another wall. Will not corrode steel reinforcement (brick ties etc. I would check adhesion using a piece of rubber, the type used for door stops (screwfix p118), glue it with superglue (allow to cure) rip it off and see what gives. If it's a cavity, before you go down the render route, go find a builder and ask him how much to rebuild the outer skin of the end gable wall. Read more. Currently in Stock. very big difference. Tapes suitable for a range of materials stocked. The render around the mock Tudor beams on the outside of a property I am looking at is cracked. If you do not want to change the appearance of these walls then use a masonry waterproofer (two coats). thanks, I keep reading that you shouldn't use cement render when a wall is built with lime or cob but because it will not breath but it has already been hard rendered on the outside so therefore it is already. Nail straight pieces of timber vertically & horizontally as required to external corners, window & door reveals. FREE next day delivery available, free collection in 1 minute. 45/Kg) Once that dries, I can then apply 2 coats of render (scratch + 2nd coat). oggie78 New Member. Masonry paints are specifically for exterior use and will protect a property from weathering and pollution. View all: Bostik Cement Mix. 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. For Interior & Exterior Use. Mr. View all: Mapei Shower Waterproofing Kits.