What do you reckon is the prime time to float finish render. Handyandy, Oct 23, 2005. Inc. Buy Ready Mixed Plaster at Screwfix. 3) waterproof paint the bottom exposed brick. Render - smooth finish. Discussion in ' Builders' Talk ' started by Fussy Spark, Dec 27, 2020 . the render has retarder/waterproofer in it. Ask a question. Phil the Paver Screwfix Select. Screwfix customers rate this product 5/5. Product Details. It Is single skinned and with render onto boards which were lined with fibreglass mesh. The Bonding coat should not be allowed to dry before application of the render or plaster. I have used a slurry coat first of. Finish second coat with sponge or wooden float. Volume. 99 Inc Vat. Breathable masonry paint is essential for waterproofing your exterior bricks while allowing moisture to escape from inside your house. Weather Shield say leave it until Spring. FInish with horizontal scratches for a key. For extra certainty use a render bonding agent such as Sika Rendagrip as a priming coat. PVA is a water-insoluble resin which is typically white at the point of application, but dries colourless and has a high bonding strength. Odourless & Solvent-Free. Suitable for the damp proofing of interior masonry wall surfaces. Sikagard Facade makes walls and. View all: Sika Waterproof Sealants. Use plasticiser on both coats. 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. Now I am intending to use cement, sika waterproofer and sharp sand and render this wall. So I. Suitable for brush application only. Float at 5:1:1 Builders sand : OPC : LIME with waterproofer in the water How does that sound? 2. The biggest problem with a single-skin external wall is condensation which most people confuse with rising damp. Scud the wall first with 1:1 sand/cement next day dampen down before rendering with the hose, thermalite are a pig to render unless you are quick. Overcoat 48-72 hours after application with any standard water-based masonry paint or mineral. 99 Inc Vat. Sika Proof improves the impermeability and absorption. Then sharp sand fine, lime, cement in 6: 1: 1 ratio as top coat. Applied waterproof PVA. It sets to a rock-hard finish and can be overcoated in 24 hours. Went on white. £9. View all: Bostik Specialist Paints. 99 Inc Vat. com. Order online at Screwfix. Home Forums > Screwfix Community Forum > Painters' Talk > Painting render. It is all studded then waterproof membrane & has expanded mesh over it and then its rendered. A-. Click & Collect. Free returns. Product code. I recently bought a bungalow, it was built 1970. Depending on the ratio you used for waterproofer/water in your mix you should find that the render is virtually weatherproof. 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. Sets in 20 minutes. com. They do say that a suitable bonding agent could be applied prior to the render scratch coat. Thistle One Coat Plaster 7. Using 4 :1 first coat and 6:1 second with waterproofer. I would appreciate a little advice on the making of the waterproof render,thanks. Adhesive can be manufactured from a range of substances, with each having different properties. Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders. He uses plastering sand and cement mixed at a 3:1 ratio with waterproofer added, no lime or plastisiser. Suitable for interior and exterior use. Any thoughts anyone? Plumbcrazy,. Product Type. Extremely durable and will adhere to any substrate for filling and repairs with no depth limit. I know this is not the best route to go in waterproofing a wall normally. The earth is retained in the garden with another wall. Finishes are subject to high or low maintenance all of which are discussed at time of consultation. This will depend on the surface of which it's being applied and the strength of hold required. com. Preparation of the surface to be painted with gloss. Covers up to 4m². Scrape off as much as you can and let it dry-out naturally, which could take a long time, before attempting to redecorate. What mortar mix, 3:1? ArthurFirstly internal walls do not need rendering with sand and cement but a base coat of plaster is used instead such as Bonding or Browning. 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. Hi there, I need to find a suitable, waterproof render for a wetroom. We're getting a lot of confusing/conflicting information regarding painting it: How soon can it be painted (weather permitting of course, it's in Brecon) Sandtex tell me their products aren't compatible with PVA, therefore not to use it. Add for Delivery. 4 use mechanical fixings to fix this system to the wall. Never heard of the 4 weeks / mould thing before. £3. 5:1:1/2 Good gritty sand, (or plastering/rendering sand) cement, lime, in two coats, scratch first coat, no pva just well dampened walls. Everbuild Solvented Grab Adhesive 350ml (6048H) (245) compare. Â, Dec 1, 2007. Sika Proof Liquid Waterproofer 5L £7. 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. If you wait then water will get in behind it and more and more will fall off. Thermalite hedge their bets somewhat on their finishes section. Waterproof. 99 Inc Vat. What depth should the battons for the scratch coat be? I was looking at 10-15 mm deep off the wall. Hi handy 007 1/2. The 2nd. The exterior is rendered and i'm pretty sure its trapping water in the walls and just driving it in. To ensure thorough waterproofing of your exterior walls, you need a coating that will actively repel water. TDav Member. I intend to stipple a further slurry of Unibond, cement and sharp sand before I render the wall to make it suitable for applying tiles in the shower area. AC50 Trade Acoustic Adhesive & Sealant 900ml. FREE Click & Collect within 30 minutes. Order Sandtex Quick-Dry Stabilising Solution 5Ltr at Screwfix. Use stainless steel bellcast/render stop beads as req. Given the time since it being applied does this need to have stabilising and/or waterproofing coat before painting?Yes to a mist coat - I generally thin by about 30 - 40%. 90 Ex VAT. 80. 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. Product code: 139057. PayPal accepted online. PAGE 1 OF 2. Render up to (or very slightly below) the damp course, finishing with a 25° slope down and outwards from the dpc. • 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. 40 per KG. If it could be dug down far enough then a waterproof render might be enough hallbeck, Jan 24, 2007 #3. I will be hacking off and re rendering the whole house, The time between hacking off and rendering, will the house be no longer “waterproof” and get damp inside if it rains?I've done some DIY plastering, but have no knowledge of rendering, so would anyone be able to help me out with some info, please? The bathroom walls were originally rendered half-way up, and its so hard to remove, I would like to leave the existing rendering in place and just add new render the remaining top half. Insulates and protects wiring. The render mix I plan on using for the scratch is 5 sand, 1 cement, 1 lime, splosh of waterproofer, for the top coat, 6:1:1 but no waterproofer. I’m doing the patio and the. He came back and redid that area, and it leaks there worse than ever - it's just like a sponge. Hazardous Product – Not available for Mail Order/ TCND outside of Mainland UK. Ive been told 3:1 (2 parts sharp, 1 part builders sand) and not as wet as mortar for bricklaying. waterproof render. 1. £21. (76 products) Aggregates and Chemicals are the components of a composite material which will resist stress providing a bulk to the composite material. Order No Nonsense Waterproof PVA 5Ltr at Screwfix. Asked at the garden centre, what to do to stop it soaking in. If it was my place I definately would not paint it. That's not to say lets seal the moisture in the bricks. Masonry paints are specifically for exterior use and will protect a property from weathering and pollution. Exterior decorators acrylic for sealing around exterior window and door frames in most building substrates. Buy online & collect in hundreds of stores in as little as 1 minute! 30 day money back guarantee. Buy Multi Purpose Fillers from Screwfix. Can be brushed or spray applied. Light grey colour when dry. Suitable Application. ★★★★★ ★★★★★. PVA Sealers. FREE next day delivery available, free collection in 1 minute. If you don`t want waterproofer at least use a plasticiser or lime. Having said that, there are proper ways to do it - a layer of Tyvek, staple on some. £13. Order online at Screwfix. For picking up 1" use two coats of 1/2" each. Thanks for the help Alastair. I have asked a local builder to re-read our chimney as it was badly cracked and had started to let water into the loft. remove all dust. Order online at Screwfix. Use a firm hand to. • High performance waterproofer. there is a waterproof pva available which some say would work ok, but the consensus here is that either sbr or a sand/cement. #10. 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. This is the only part on the whole house which shows this and I belive I. Any advice would be greatly received, we dont want to knock it down. Once the wall is cleaned off treat it with an external sealer diluted to 2 parts sealer to 1 part water and mix thoroughly. I would get your render on soon so the block work can dry out. Shapeable to Repair Without Formwork. Fill holes and cracks with ease, suitable for many applications. Light grey colour when dry. KIAB Super Member. 5mm thick maybe more on old uneven walls it has a waterproof addative in the mix. My sister had her coal cellar done last year, and the guy used Sika 1, then rendered and plastered over it. 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. 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. Scratch coat is 1 part cement, 1 hydrated lime, 5 plastering sand, with fibreglass mesh embedded. Is either expanding foam, or white silicone OK in this situation (inside of course, render with waterproof mix on the. oggie78 New Member. KA Tanking Slurry is the complete crystalline solution to waterproofing masonry and blockwork. This process is best carried out using a pumping system and water fed pole with a brush attachment. Includes 2 Countersunk Screw Holes for Workbench Fixing. com. Air entraining – will not “flatten” the mix. com. com. #2. Is vital that the waterproofer is added in the correct amounts according the the manufactures instructions. Suitable for brush application only. Use a mixer and measure quatities using a bucket for consistency. Quick-Dry Stabilising Solution. I wouldn't re-render - leave the bricks open to the air. With top trade brands available, offering great quality products, you'll be able to continue working even on the. Add for Delivery. 5 Ltr. Good Luck. This sealant is suitable for for repelling water on porous surfaces. Using colour dyes to a render coat would not work because the colour would fade over time even if you did achieve a uniformed initial colour when batching up. 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. 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. 49. UK call centre ready for your call 24/7. 99Inc Vat. , Apr 8, 2005 #2. FREE next. This time, its butting up against 12mm plasterboard (painted) which was dabbed directly to the brick (no render). For easy application Tarmac One Coat Renders contain polymers. FREE Click & Collect within 30 minutes. the case is, it is a kitchen area, i have plastered 4 walls, 3 dried completely. Mix approximately 4 to 5 litres of water per 25kg bag using an electrically driven mixer until you achieve a workable consistency. ★★★★★ ★★★★★. 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. Only way to test if it's still wet is with a moisture meter. INNER WORLD DESIGN & BUILD LIMITED. I don't see why not to both questions. Question is 1. Not available for delivery. 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. and the level of the intended patio is a brick above the existing damp course in that specific wall. UK call centre ready for your call 24/7. The fine aggregates are suspended in a unique waterproof polymer to ensure easy application by roller or brush. 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. Initially it was agreed that the old render would be removed and a new render put on the bricks. it is a little tired in. 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. 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. 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. Use a bitumous tanking primer on the clean stone internally and throw gritty sand at the wet black jack for a key when dry. 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. Touch-Dry in 6 Hours, Fully Dry in 24 Hours. Waterproofs Plaster, Plasterboard,. I'm putting a corner shower into the bottom floor (concrete pad) of my house. 100% Polyethylene Construction. Handyandy - really Mr. Will this be enough. 40. But I'll have a go. For Interior & Exterior Use. Contact the team today by calling 0161 509 9009 or emailing info@emperorpaint. #2. Thread. 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. I intend to apply sandtex stabilising solution and then sandtex fine texture paint which say's it has a breathable waterproofer in it. You can use any Render bonding or gripping to prep & fix all render patches - use Polyurethane sealant for filling the recently opened cracks. SBR modified render will probebly be good enough soverine chemicals also do a product called K11 I think never used it but told by one who had it worked a treat,Otherwise, admixes can give some increased protection against water ingress for external render, or try a cement based render for the inside bay, which should keep water at bay moreso than plaster. com. Don't use sharp, builders merchants do plastering sand just tell them thats what you need. Read more. Free returns. £9. Totally forgot as was so busy myself and only had a spare few days to do it. 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. I don't trust my builder and although he assured me he put waterproof additives within the render I do not believe him. Over 40,000 products. Is either expanding foam, or white silicone OK in this situation (inside of course, render with waterproof mix on the outside)? Cold & Heat-Resistant. With regards the tile adhesive Devils advocate is. , Feb 26, 2008. View all: Bostik Cement Mix. As well as waterproofing, this product also helps to prevent condensation and efflorescence, keeping structures in great condition for longer. Buy online & collect in store in as little as 1 minute. The shed is 5m x 2m high & has 2 end walls about a metre wide. Handyandy Screwfix Select. The wall has been constructed out of 7n concrete breeze blocks and before i backfill i need to waterproof, it needs to be plant friendly. We stock Everbuild PVA, ideal for use as a contractors PVA due to its high strength. 99 Inc Vat. Extra Rapid Cement is supplied in weatherproof and tear-resistant plastic bags. I am also used 3:1 evermix plasticizer / waterproofer / retardant in the mix towards a strong ratio. 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. 1. Substrates which are highly absorbent or gypsum must be pre-treated with Primer G (usually diluted with water at a ratio of 1:1 or 1:2 to ensure thorough penetration). Applying the board directly onto the membrane with thin adhesive and mushroom fixings. Come back the next day if you like, and see what sort of waterfall you have running down the back of the wall. Provides superb weather protection for bricks, mortar and concrete. • 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. 99. Screwfix Community Forum. £ 52. Delivery 7 days a week. Choose this handy pre-mixed sand and cement render from Weber to cover brickwork, blockwork, concrete and other suitable surfaces. 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. I'm no pro on this, but have done a lot of research into it. 30 day money back guarantee. The old one is of crumbling brick and an (equally crumbling) smooth cement render. 5. High performance waterproof treatment for exterior. Contains enough to waterproof a standard sized shower. 5 apply new finish. Then simply follow the manufacturer's painting guidelines perfectly. Is there anything I can do now. slapiton New Member. Not available for delivery. 93. Click & Collect. Thread by: Crooky, Jul 4, 2021, 2 replies, in forum: Builders' Talk. Prepare walls by straightening them out with a two coat render system and a waterproofer agent added to mix. View all: Mapei Shower Waterproofing Kits. £26. Slow setting time makes it ideal for covering large areas in one application. After that, 2 topcoats of a good quality masonary paint, and job done. Fine. K Rend). Ideal for fixings in perforated brick, solid brick, concrete and aerated concrete. The paint has been fine until this very wet spring, when it started to bubble and peel in large random areas. Screwfix Community Forum. Sandtex masonary paint is top notch, waterproof and flexible so as long as its put onto a good base (hence the Satabliser solution first), it would do the job and look great. Ideal for locations such as basements. Provides a hard wearing, protective layer on wood, metal and cement. Discussion in 'Builders' Talk' started by Bungditin. 99 Inc Vat. As the title suggests is artex that you use to decorate ceilings waterproof?chillimonster Screwfix Select. Repels water on wood, brick, concrete, paving, asbestos and cement. Ideal for emergency repairs, filling and patching. Product Type. Febtank Super is a high performance tanking slurry for masonry and concrete. The formula is solvent-free, making it more environmentally friendly by reducing pollution. The render around the mock Tudor beams on the outside of a property I am looking at is cracked. £9. Buy Aggregates & Chemicals at Screwfix. 41 Per unit £1. £32. OK. The wall is an external leaf, subject to high prevailing salty winds and has had dampness for years. 74/kg quantity Collection Set Store. £ 28. too much suction 4:1 will do you. General Purpose Mortar. Mr. Screwfix Community Forum. 8. Currently in Stock. May produce an allergic reaction. Suitable Application. 99Inc Vat. Sika Rendagrip External Render Bonding Agent Red 10Ltr (8831P) (10) compare Waterproof One Coat Application Red Colour Indicates Coverage £54. com. unfortunately came home yesterday and all covered in scratch coat with no waterproofer. FREE next day delivery available, free collection in 1 minute. £3. Buy Resins at Screwfix. Adheres to damp masonry and is weather-resistant. Suitable for Water, Oils & Chemicals. Totally forgot as was so busy myself and only had a spare few days to do it. 4m²/Ltr. KIAB Super Member. A nightmare rendering on smooth lightweight blocks, hate it. you. Considering the size of the job I'll just use the stuff from Screwfix for this. #3. I've slapped a PVA solution to brickwork on internal walls prior to render, I GUESS that this situation is no different. South Gloucestershire Technical Advise Leaflet : Lime Render 2 Introduction Render was originally used to provide a protective covering to stone or brickwork. Bostik 1kg Cementone Colours for Cement - Buff (47) £9. Dow 791 Weatherproof Silicone Sealant Anthracite 310ml (44836) (42) compare. Daveukleics Member. Neville the tap dancing gibbon, Sep 2, 2006. Volume. Goddo New Member. all the best. Volume. Buy Cement Mix at Screwfix. Product Type. Available in different variants, it is important that the right basecoat paint is chosen for the job. com. I intend on having the front of the wall rendered so it is important that it is sealed correctly. Mr. 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. Discussion in 'Builders' Talk' started by ssss64, Jan 23, 2007. 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). I have been trying to use sand and cement with waterproofer (everlast) to level it out but unsure if I'm doing it right. Hi, My extension was built and rendered using a sand/cement render around 4 years ago. Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders. com. final coat of render needs to. Are there any issues with MDB's - i know thermalites are a pig but are these any easier?you will need to hack off the external render and re-render with sika No. Don't try and apply render in one coat it will only sag and probably fall off wall. you will then have a render. For the coloured top finish you require you use coloured sand and not coloured cement. com. 5 Ltr. #9. Rendering of chimney. Order Thompsons Drive Seal Black 5Ltr at Screwfix. MyPetFrog likes this. Screwfix customers rate this product 4. After application by brush, roller or spray; Stormdry provides breathable protection against rain penetration on exterior weather-facing walls. She got the guy back and he said 'oh well, it hasn't worked, you need the place tanking which. Low Odour. FREE next day delivery available, free collection in 1. Rapid-setting waterproof cement. That will last. 25 Year Waterproofing from a Single Coat . Sometimes i use wire ( render lathe to all you young spreads ). The builder has incorporated PVA into the traditional render. £8. ex. £59. It failed in one area, and cracked off the wall. From waterproof adhesive to glass adhesive, it is important to choose the right glue for the job. Home Forums > Screwfix Community Forum > Builders' Talk > Help with Rendering please Discussion in ' Builders' Talk ' started by mikethesmoke , Apr 26, 2009 . 49 Inc Vat. 80/Ltr)I am building an outdoor kitchen for gas bbq etc. Mr. Features include multi-pockets, adjustable designs and reflective tape so that you can be seen. Bostik Concrete Sealer 5L. giving a lighter easier to work gauge of mortar. 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.