Coverage: Approximately, 1 litre of SBR per sq metre at. Buy. Easy to shape and can be used on a variety of rough masonry surfaces including cement, concrete, breeze blocks, bricks and stones. Everbuild’s Black Jack paint is perfect for. Should be ok to overpaint SBR with masonry paint. Screwfix Community Forum. In my experience you can take of the damaged parts and patch in, but personally I would take it all off and start again, making sure that a good key is achieved in the scratch coat (1st coat of render). Cover to control drying - maybe damp down occasionally too. Sika Proof Liquid Waterproofing Admixture is a general purpose, ready to use, economic waterproofing admixture for mortars and concretes. Tarmac One Coat Render is a pre blended render that can be applied in one coat for patch repairs or larger rendering projects. . waterproofing paint. I now have a choice, either to continue with the original plan (not so keen on that idea now) or to re-point the worst bits and then apply a waterproof lime wash. 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. BEfore dry (as the instructions suggest), I was then going to render to approx 10mm with a 5:1 rendering sand:cement mix with a waterproofed within. common sense tells you that this system will go nowhere and it wont. INNER WORLD DESIGN & BUILD LIMITED. View all: Mapei Shower Waterproofing Kits. High performance waterproof treatment for exterior. The pointing needs raking out 25mm deep, and re-pointing with a 4:1 sand & lime mix. Free next day delivery available. Covers approx. This has now altered a little and it will often look like a kind of crazy paving which I belive are cracks in the dash which is allowing water into. 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. That's not to say lets seal the moisture in the bricks. Volume. What depth should the battons for the scratch coat be? I was looking at 10-15 mm deep off the wall. Water Seal. Product Details. Click & Collect. 30 day money back guarantee. Render, Bricklaying and Floor Screeds. 99. When diluted with water it produces a gauging solution for improved adhesion, workability and waterproofing of mortars and cementitious mixes. I intend on having the front of the wall rendered so it is important that it is sealed correctly. This is your 'drip-tray' separating the above and below dpc areas. The last thing you need for tiling is a skim finish - tiling takes best on a background float such as a 3:1 mix of sand and NH lime. I know I need to attach mesh to the surface, but a friend has told. 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 been. I’ve done an extension and due to the nature of the land, now the door of the extension will be about 50cm above the grass of the garden. Features include multi-pockets, adjustable designs and reflective tape so that you can be seen. 5m x 0. Many can be painted over to match the colour of your windows or frames. Suitable for 2. £8. Order online at Screwfix. Volume. Fast-Drying. Home Forums > Screwfix Community Forum > Builders' Talk > Damp wall render. Good Luck. Product Type. com. This not painted at the time as suspected water ingress problem however this issue now resolved. I have been trying to use sand and cement with waterproofer (everlast) to level it out but unsure if I'm doing it right. Designed to be used for plasterboard internal corners. for a half bag mix in a small mixer add one cup full of waterproof and one cupful of placticiser to a bucket of water. ★★★★★ ★★★★★. £ 28. You must be 18 years old or over to buy this product. #3. I know this is not the best route to go in waterproofing a wall normally. A-. Many rubble stone buildings in South Gloucestershire were originally lime-rendered, and/or lime-washed and render is a distinctive local feature which should be retained. 5mm plasterboard to the wall, and then skim. Scratch coat @ 4 to 1 & Top coat @ 5 to 1, I like to add fibre (adfil) to mix, gives a bit of reinforcing, prevents cracking,etc. There are many external finishes - Finedown (smooth as in photos), Tyrolean, Pebble dash etc. Primer paint is required as an undercoat before applying the upper layers to any surface. Light Grey. 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. With top trade brands available, offering great quality products, you'll be able to continue working even on the. 99Inc Vat. 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. 99 Inc Vat. Masonry paints are specifically for exterior use and will protect a property from weathering and pollution. Sika Waterproof Coating Grey 5kg (83502) (68) compare. 7/5. View all: Bostik Specialist Paints. For interior and exterior floor and wall installations. 7 litres of SBR per 25kg bag of cement to give a totally waterproof render. Buy Cement Mix at Screwfix. Includes 2 Countersunk Screw Holes for Workbench Fixing. 2/ render the walls. Total Product Weight. It Is single skinned and with render onto boards which were lined with fibreglass mesh. Add 1 cup of a waterproofing render mix per bucket full of water you mix. Use it after clearing. #2. You should have. 2) Fit a bellcast. Apply with Brush or Roller. Order online at Screwfix. I'm having to strip back and re render the walls where the shower is going as the plaster is poor and has been sealed with pva i think. 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. £13. Weber One Coat Base Render 25kg. Supplied in a graduated bucket. View all: Bostik Cement Mix. unless you do a lot of good drainage behind it and seal it with something more waterproof than render. From what I’ve read on this very helpful forum, it’s a water/salt problem. 99 Inc Vat. Thermalite hedge their bets somewhat on their finishes section. Over 40,000 products. oggie78 New Member. Best chech out the additive that has been used with the manufacturer. Ideal for use on swimming pools, water tanks, ponds, below ground concrete, as well as for render and floor screeds for water resistant applications. Low toxicity. hi what is the best mix ratio for rendering internal wall . Heat-Resistant. Delivery. 1 remove lose stuff. Discussion in 'Builders' Talk' started by Gary hunt, Oct 23, 2016. Live in an old stone cottage,just chopped a load of original lime/horsehair plaster off some of the kitchen walls,rendered it couple off weeks ago with 1st coat 3 sharp 1 soft 1 cement and redermix aditive,put the soft in as did a 3. 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. Scratch coat is 1 part cement, 1 hydrated lime, 5 plastering sand, with fibreglass mesh embedded. Product code: 252325. 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. 99 Inc Vat. £9. You use a wire scratcher to form a key in this while its wet to form a good key for your second coat. Screwfix Community Forum. For External Use. The paint has been fine until this very wet spring, when it started to bubble and peel in large random areas. 99 Inc Vat. £27. Everbody have different ideas for the perfect render mix, I usually do 1st coat (scratch coat) 3:1 sharp sand with waterproofer, 2nd coat (floating coat) 4:1 sharp sand with waterproofer. RECOMMENDATIONS:Alchemy Plastering. Click & Collect. Prop the hose up splashing against the wall and go and have a cup of tea. Choose from top trade brands. Do what the gardener should have done. 12-16m²/Ltr. 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. At certain points the garden is upto a foot higher than. Handyandy, Oct 23, 2005. Order online at Screwfix. Sika Bond SBR+ Waterproof Bonding Agent and Mortar Sika Bond SBR+ is a one component, water based, general purpose, styrene butadiene rubber emulsion bonding agent and mortar admixture. Apply Water Seal directly onto damp surfaces to provide long lasting waterproof protection within hours. I intend on having the front of the wall rendered so it is important that it is sealed correctly. 95 Ex VAT. Items are easy to install and use while. You can use metal beads for all windows and angles and drip beads for your bell. blertsville, Jul 4, 2011. FREE next. If the wall is dry (unlikely this year!) lightly damp it without soaking it completely before applying the. 8m)above newly-fitted french doors to render. Is there anything I can do now. Scrape off as much as you can and let it dry-out naturally, which could take a long time, before attempting to redecorate. Everbuild Solvented Grab Adhesive 350ml (6048H) (245) compare. com. Product Type. Sharp sand coarse and fine, lime and cement in 2 : 2: 1 :1 ratio for bottom coat ( scratch ) coat, with waterproofer. com. Water & Weather-Resistant. UK call centre ready for your call 24/7. waterproof render. Temporary repair required because house goes on market in 10 days time and I dont think I will be able to get anyone in before then (Oxford). 250 cement board. Screwfix Community Forum. The proceedure is:-. This will depend on the surface of which it's being applied and the strength of hold required. This coat should be applied while the first coat is still. 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. 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. 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. Forms a transparent, waterproof barrier. For Interior & Exterior Use. 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. Mr. i now have to patch it up, about a 2 inch strip. Quantity: FREE Click & Collect within 30 minutes. If you really want belt and braces, then seal it with a clear sealer, then you won't have to paint it every few years. the case is, it is a kitchen area, i have plastered 4 walls, 3 dried completely. com. 25 Year Waterproofing from a Single Coat . Click & Collect. Building a stud wall with a damp-proof membrane and insulating it. Go all over it and knock off the loose stuff. If others have done it - then they have done the wrong thing. Will adhere without primer even on slightly damp surfaces. 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. No waterproofer in render scratch coat. First time doing render and there will be soil behind the wall but only to a depth of 300-400mm, should the back be left unrendered but with some waterproofing and drainage? Also thinking of putting some dpm behind the bottom of render as in attached pics or is this overkill! Any helpful suggestions welcome, thanks in advance!hi all,my mate wants me to re-render his damp bathroom. Will not corrode steel reinforcement (brick ties etc. 1. 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. Product code: 139057. 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. 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. 1-2hrs Approximate Setting Time. Give them a good scrub or pressure wash and tidy up the pointing. I have waterproofer and unibond. Construction Project Manager, May 29, 2015. 1st coat scratch 1:1:4 (OPC:lime:sand), 2nd coat 1:1:5. View all: No Nonsense Cement Mix. £ 21. My sister had her coal cellar done last year, and the guy used Sika 1, then rendered and plastered over it. High performance waterproof treatment for exterior porous surfaces. Delivery Next day available. i have a freshly scoured brick wall, having recently removed half an inch. Hi, I wonder if anyone can help/ offer some advice as we’re at our wits end. Order Bostik General Purpose Mortar Grey 5kg at Screwfix. Phil the Paver, Nov 22, 2014. Mould & Mildew-Resistant. BS 4887. Often soft in texture, when applied these substances harden. Waterproof a leaking roof. It is only about 2 months old is it possible I can have a a company in to lay k-rend straight onto the render?The plas will work its way into the mix and soften down the mix as it turns. B&L, Choose one or the other. Ideal for emergency repairs, filling and patching. It incorporates a Polymer bonding aid allowing the results. 2nd coat (floating coat) 4:1 sharp sand with waterproofer as above etc. Sometimes i use wire ( render lathe to all you young spreads ). K Rend). Product Details. 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. Buy Resins at Screwfix. Dow 791 Weatherproof Silicone Sealant Anthracite 310ml (44836) (42) compare. . It is all studded then waterproof membrane & has expanded mesh over it and then its rendered. Provides superb weather protection for bricks, mortar and concrete. 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. It looks like I'd need 3 different types to do the job properly with that stuff but it looks like good stuff. Protecting from rain, frost, ice and snow, this product is ideal for providing extra protection to your home's exterior. The 2nd. Thread by: Crooky, Jul 4, 2021, 2 replies, in forum: Builders' Talk. common sense tells you that this system will go nowhere and it wont. com. apply the sand and cement to above 1/4 inch of the existing. Fill holes and cracks with ease, suitable for many applications. 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. Not if you’re using lime, paint a waterproofer on after Watch the weather, spray bottle at the ready keep it damp, and don’t curse when the scratch coat cracks Abrickie , May 21, 2020Plumbcrazy New Member. I have hacked off crumbling old plaster to expose old brickwork and breeze block walls and I have primed the surface with 1:5 mix of Waterproof Unibond. High Bond Strength. Use plasticiser on both coats. The formula is solvent-free, making it more environmentally friendly by reducing pollution. Deme23 New Member. Primer Not Required. Is either expanding foam, or white silicone OK in this situation (inside of course, render with waterproof mix on the. VAT) Quick. Products reviewed by the trade and home improvers. Hydrated Lime seems to be disappearing, I know several places around here no longer stock it. The wall is hollow concrete block, backfilled with concrete and reinforced to some rather substantial footings. Brick waterproofer to help prevent damp on bricks & masonry. Neosparks, May 30, 2006. Covers up to 4m². Will fill without depth limit and repair without formwork. You might wonder why you need two (or more) coats. The shed is 5m x 2m high & has 2 end walls about a metre wide. 5/ plaster to suit. £ 14. FREE Click & Collect within 30 minutes. Good shout? Also, not location of air bricks. 5 Ltr. Click & Collect in as little as a minute. drill driver, Jun 21, 2005. (we could render the side but not the back). . Internal Skimming of conservatory walls. 6/5. Screwfix Community Forum. and the level of the intended patio is a brick above the existing damp course in that specific wall. Handyandy - really Mr. For extra certainty use a render bonding agent such as Sika Rendagrip as a priming coat. Removable Grid Supplied. The traditional two coat rendering on a porous surface, i. A. Wet room Kits consists of a mix of products which are needed when creating an open plan showering area. 99Inc Vat. Chemical dpc's are used as a cost cutter and are not really as good as people make you believe. Covers up to 4m². I am after some advice if poss. 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. com. £8. Dried clear. What depth should the battons for the scratch coat be? I was looking at 10-15 mm deep off the wall. Waterproof. dougalhouse Member. 41 Per unit £1. Screwfix customers rate this product 4. Tarmac One Coat Renders can be applied with a trowel of float. This Everbuild 402 Water Seal is a sealant that stops water wear on brickwork, stone masonry, concrete, pebbledash and other exterior walls. You can sand down the corners as far as poss and put a few coats of red oxide or any other number of magical rust cures, I've done it a few times, it will buy you a year or two. Water vapour permeable. 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. Buy Jointing Tape at Screwfix. Preparation of the surface to be painted with gloss. I know when we do the top coat it's gonna suck the moisture out like crazy. Click & Collect in as little as 1 minute. 99 Inc Vat. As well as waterproofing, this product also helps to prevent condensation and efflorescence, keeping structures in great condition for longer. 1/5. The old injection attempt has not worked, and neither has the inside attempt to render to 1m ht. Sets in 20 minutes. A couple of potential problems come to mind; concrete on a stud wall will almost certainly crack and fracture over time - I think. Product code: 252325. I'm painting a house at the moment and the customer wants a more long term solution so I'm cutting away 4" of render either side of the corner. Ricky Johnson New Member. Hang on, it's going white again. Not available for delivery. Contains 1,2-benzisothiazol-3 (2H)-one and reaction mass of 5-chloro-2-methyl-2Hisothiazol-3-one and 2-methyl-2H-isothiazol-3-one (3:1). 90. 5055492702975. I've attached some images. Seeking a bit of advice, been waiting for my plasterer to come and do my external rendering. you can use it for rendering but it's much more difficult to rub up. Click and collect in as little as 1 minute. 99 Inc Vat. The wall has a cavity with no insulation and about 150mm above the damp course. 49. Change the physical properties of building chemicals to suit the job. 90min Approximate Setting Time. If it could be dug down far enough then a waterproof render might be enough hallbeck, Jan 24, 2007 #3. Contains primer, coating and waterproof jointing tape. Suitable as a damp proof membrane on solid concrete floors. Home Tags > rendering. Is vital that the waterproofer is added in the correct amounts according the the manufactures instructions. #2. + silcone the windows. . cautious New Member. Seeking a bit of advice, been waiting for my plasterer to come and do my external rendering. Home Forums > Screwfix Community Forum > Builders. Delivered by our approved supplier, Find out. Contains enough to waterproof a standard sized shower. Nail straight pieces of timber vertically & horizontally as required to external corners, window & door reveals. Brickie might. Phil. 96 per L . Any thoughts anyone? Plumbcrazy,. As per usual there are so many different videos etc on the web it can get confusing. Im nervous about it cracking so please can you confirm the correct mix to use. Considering that you nickpuff seem to be the only person that is unable to decipher plain English I will help you out a little. Use a firm hand to. Having said that, there are proper ways to do it - a layer of Tyvek, staple on some. 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. Apple Pay accepted in store. EVeryone seems to have their own opinion and hardly. Home Forums > Screwfix Community Forum > Other Trades Talk > waterproofing internal rendering Discussion in ' Other Trades Talk ' started by woodburner , May 16, 2006 . 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. 2. com. This time, its butting up against 12mm plasterboard (painted) which was dabbed directly to the brick (no render). com. I use to put waterproofer in both coats, but some peeps on do scratch coat. Inc. 1. Wait a few minutes, feel the pva. Suitable Application. Discussion in 'Builders' Talk' started by Victor Lek, May 24, 2022. Presume you have slope away, try to start with nothing at dampcourse (should remain below dampcourse). 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). It's all more controllable, and the 'plaster' ain't setting before your very eyes sending you into a blind panic. com. Waterproof PVA. • Drying time of around three to four hours. Mr. He advised waterproof PVA. South Gloucestershire Technical Advise Leaflet : Lime Render 2 Introduction Render was originally used to provide a protective covering to stone or brickwork. It is a solution for nothing. 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. Use a mixer and measure quatities using a bucket for consistency. If I render with febond sbr sand and cement render then I can use 10mm travertine tiles. Overcoat 48-72 hours after application with any. com. 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. Insulates and protects wiring. Suitable for brush application only. Bostik Concrete Sealer 5L. VAT £6. 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. com. Weather-Resistant. Scratch coat is 1 part cement, 1 hydrated lime, 5 plastering sand, with fibreglass mesh embedded. OR 5:1 Good gritty sand, (or as above) cement and a bit of plastisizer in first coat (again scratched) then Rendamix in. Discussion in 'Builders' Talk' started by questioner, Jul 6, 2007. Wait several hours until the coating of Primer G is completely dry. Quick-Dry Stabilising Solution. I'm quite a confident diy'er and wanting to try rendering a garden wall for the first time. Waterproof render for external earth retaining garden wall!!! Discussion in 'Builders' Talk' started by oggie78, Apr 7, 2009. Reduce cracking and shrinking when mortaring with this SBR bonding agent from Everbuild. 310 ml. The Bonding coat should not be allowed to dry before application of the render or plaster.