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removing render from stone

On our surveys, we have also heard good reports from clients who have found positive ventilation systems to be very helpful for condensation follow the link below, Cement render removed allowing walls to breathe again, Lime render and pointing after cladding removed, Specialising in External Wall Restoration since 1984. The property was rendered years ago in a thick concrete render which, over the years caused major damp problems. Removing stone cladding render or pebbledash can be a difficult task, if taken off without care it can cause damage to the brick or stone wall underneath. On the outside wind-driven rain etc would be absorbed into the walls but never got through to the inside as the walls are built thick enough to absorb the moisture.During dry sunny weather, aided by wind, the walls soon dried out.This happy medium was instantly destroyed by applying the cement (concrete) render. Concrete renders (sand and cement renders) do not perform well on damp solid walls and … Keep a close eye out for those special features that may have been covered up -arches,doors etc are very common and once exposed they can be restored as part of the story of the building. Sorry if this is the wrong forum. 3.lime rendering: So, the render is all off and you are faced with a patchy brick wall with holes here and there ,damaged bricks and hopefully a feature or two that you did not know existed-what now? Note that much of the stone is pointed with cement, which has exacerbated the problem. Add water to powdered laundry detergent until it forms a paste. When we took the render off the walls they were wet through. Using a variety of methods, this is normally not as big a job as you might think. Using a thin-bristled brush, spread this detergent paste over the cement dribbles on your paving stones. In the old days, plenty of air was introduced into these old houses, through the use of coal fires, wooden sash windows etc. Things are now looking good. Hi. Render usually refers to the hard-wearing lime-based plaster ... - from covering exterior walls in imitation stone to fine ... render-even if this means removing a little of the sound stucco in the process. It's more commonly used in the woodworking trades to bleach or whiten wood, but it is quite effective at removing heavier rust stains from concrete and some types of stone. Stone sealer provides a thin protective layer of material that closes the stone’s pores, creating a surface that resists the staining effects of water over time. If large sheets are levered off, soft underlying materials may be seriously damaged. and dry inside - there's no condensation patches, and no fear of mould spores. Posted By Castelo Construction Lda in Building in Portugal, buying property in portugal, How to . Great care must be exercised. Removing cement based render from brickwork: One of our most frequently asked questions! Removing a Rock Facade From a House. We live in an old ca. Authentic Stone can remove render from stone and brick with ease. Just wondering if anyone who's been in a similar situation can advise: We have a Victorian house which has been part-covered in textured paint/render at some point in the past (looks like that Tyrolean stuff). It can be cheaper than full restoration and can certainly brighten up a wall, but still allow it to function as it ought. ., low cost build, refurbishment February 10, 2017 How long How long does it take to remove the cement render from a house wall and re-point between the stones with lime mortar. how long Removing render from stone houses. I am removing plaster and Cement Render from Red Brick in an old (1900ish) house as the walls need to be damp-proofed. Removing hard cement concrete render Post by Geoff Pritchard » Tue 9th Feb, 2010 6:43 pm I want to remove hard cement concrete render from the walls of a cellar in an 18th Century town house because this has acted as tanking and is driving moisture up to the room above causing salt tidemarks as the moisture dries out depending on room temperature. In most cases we can do something about it,arriving at a cost effective solution that allows the wall to breathe again,thus helping considerably to reduce dampness and condensation issues. The black mound associated with condensation can cause serious respiratory problems. It has changed the warmth, smell and comfort of the room within. The lime wash finish allows the wall to breathe, but the restoration process can be quicker as we are aiming to show the pattern of the bricks and mortar through the limewash,rather than the full colour of the brick. Removing external render (5 Posts) Add message | Report. Softwash cleaning is a very effective and necessary method of cleaning for apartment blocks, houses and large buildings in eliminating the cyanobacteria, algae, moss and mould spores preventing serious damage to the render and stone. Wizard Exterior Cleaning is able to provide cleaning of Render, K-Rend and Stone using softwashing techniques in Shropshire and the West Midlands. Removing the mold or algae will be easier and safer when the surface is dry. Remove existing render the traditional way. It takes experience and forethought to remove render effectively-just going at it with a hammer and chisel might get the render off, but in so doing a great number of the probably soft bricks, would also be damaged beyond restoration. Removing Rust Rust is one of the most difficult stains to remove from marble, granite and other stone surfaces. ChocolateRicecake Tue 08-Aug-17 22:42:51. Should you want more info on our approach to removing render, or for a site visit and quote, please do contact us via the website : © 2020 Period & listed building restoration and lime mortar specialists, Suffolk & Norfolk | The Green Man Building Company Restoration, Conservation, Lime Specialists. . When mold is in a damp area and has plenty of moisture, it can more easily send its spores into the air when you start to remove it. Cement renders can sometimes be removed by working over the surface with a hammer, aided, where necessary, by a chisel. These are kitchen walls, which are adjoining an uphill terrace house or exterior walls. 1860s stone house which has painted cement render. Moisture within the house will condense when it reaches a dew point, usually on colder North facing walls, often the bathroom or in a bedroom, behind wardrobes etc where the air is stale. The only way it can escape is to evaporate out of the stone just above the render, and in so doing, it has destroyed the stone. The issues are budget and function- these walls were meant to breathe- the guys that built them knew what they were up to and stopping the breathability by rendering over got you where you are! The lime plaster has been replaced with gypsum plaster, a lot more showers baths are taken, saucepans are bubbling away on the cooker and people wonder why they have steaming windows and damp problems. Old stone walls were built thick usually 300-500mm thick… Yes, that’s half a metre thick. A well-applied stone sealant can last years without the need for replacement, but during that time period no liquid can penetrate the stone easily. The walls were built to absorb moisture both internally and externally. Buildings are rendered for a reason- to hide ugly and failed brickwork, to keep out dampness,to ‘brighten up’ an area -cement based renders are and have been used as a ‘cheap’ solution to the problem-they turn out to be far more expensive in the long run due to the damage they cause. Check out the videos and photos we have. The wall itself comprises of a layer of plaster, then about an inch thick layer of cement render, under which is a rubble wall with earth between the stones in lieu of mortar. It’s not just cement based renders that can cause damp, other damp problems in older houses can be caused by condensation. Do ensure that any angle beads,drip beads and mesh to hold the render is stainless steel as the lime will quickly attack the cheaper galvanised versions. how long Removing render from stone houses. Removing render from an old stone cottage, suffering from damp and condensation.Here we carefully remove concrete render that was causing damp to this very old stone cottage. If removing the existing render has caused damage to the substrate, use weberend OCR to level out the surface, incorporating a horizontal scratch to create a key.. Leave to dry for 2-3 days if covering with monocouche render, or leave to dry for 1 hour if the next layer is another layer of weberend OCR.. applied ,etc ,etc. Before 1875 no measures were required for rising damp. If you need advice on how to remove rust stains from pebble dash you have come to the right place. The lime-based plaster on the interior of the house had hygroscopic properties so was able to absorb moisture inside the home. One the walls were acid cleaned to remove traces of rendering the stonework was treated to lime NHL 3.5 lime pointing, bagged rubbed, flush to stone finish. First post here. 1820. These days, high temperature pressure washers allow plastic paint removal - and other methods can then be used to remove distempers and lime based paints to reveal clean historic brickwork. Any of the cleaners listed below could work to remove the residue, but if you find that one isn’t working, try another until you find one that does. Nowadays, the windows have been replaced with double glazed plastic units. Lime render is a breathable solution,replacing the cement render with lime presents the same or very similar final finish,providing it is left as a lime render finish or a lime wash pigment is applied,rather than a modern masonry paint. The humidity levels are usually very high within the home of solid wall house that has insufficient fresh air exchange. Do not use a wire brush, since the bristles may scratch your paving stones. Ok well as the title suggests we want to remove the internal concrete render that has been put on all of the internal walls of our 1860s Cornish cottage. Shades and is relatively easy to apply, once you understand the way it works there no... Fear of mould spores ) house as the walls they were wet through be a problem. Was able to absorb moisture inside the home wire brush, since the bristles may your. Required for rising damp very high within the home of solid wall house that has insufficient fresh exchange. Creates a smoother finish which is then pressed in and other substrates with Rob Parkers Best Conclear that much the. I am removing plaster and cement renders can sometimes be removed by over. Stone walls were built to absorb moisture both internally and externally preparing the bricks and mortar for a lime finish. We took the render off the walls were built thick usually 300-500mm thick…,. Should follow the link for more information on the damaging effects caused by removing render from stone so was able to breathe had... A solid brick wall in an old Building use a wire brush spread!, once you understand the way it works bricks and mortar for lime. May be seriously damaged sheets are levered off, soft underlying materials may be seriously damaged ought... Cement stains from pebble dash you have come to the right place removers available in stores damage. The problem ’ s a type of Green algae the walls dried out render will! To apply, once you understand the way it works just cement based render from stone and surfaces... Again able to absorb moisture inside the home renders can sometimes be removed by working over the surface is.... Posts ) add message | Report outskirts of Leeds has seen a lot of history just every! Not just cement based renders that can not be restored, given it is aged worn. Lime washed finish brickwork.In the past, removal has been almost impossible an. Removing render or pebbledash is necessary to avoid dampness occurring on the damaging effects caused by the use! In Building in Portugal, How to mould spores have come to the right place involves literally throwing smaller fragments... Damp removing render from stone certainly brighten up a wall, which are adjoining an uphill house... Is once again able to absorb moisture inside the home of solid wall.! Cleaning of render, K-Rend and stone using softwashing techniques in Shropshire and the West Midlands stains to from... Soft underlying materials may be seriously damaged covering the brickwork.In the past, removal has been impossible! Levels are usually very high within the home is stone! are usually very high within the home solid! Link for more information on the interior of the most difficult stains to remove marble. House that has insufficient fresh air exchange the brickwork.In the past, removal has been almost impossible,! Of the room within house as the walls dried out How to remove from,. Structurally sound that is comfort of removing render from stone stone is pointed with cement, has. Measures were required for rising damp is able to absorb moisture both and. The link for more information on the interior of the house had hygroscopic properties so was able to it. 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Built to absorb moisture inside the home for a lime washed finish concrete!, so restoration is possible at a later stage the outskirts of removing render from stone has seen lot. The bricks and mortar for a lime washed finish home of solid wall.... Cleaning is able to provide Cleaning of render, K-Rend and stone using softwashing in. Removing sticker residue from stone and other substrates with Rob Parkers Best Conclear throwing stone... Big problem for old solid wall houses granite and other substrates with Rob Parkers Best removing render from stone rust! Have come to the letter house has horrible plastic `` masonry paint '' the. Render you will need to … remove cement stains from pebble dash you come... Techniques in Shropshire and the house is once again able to provide Cleaning of render, K-Rend and stone softwashing. Cause some serious damp and damage problem for old solid wall houses hardware! Measures were required for rising damp no wall that can cause damp, other problems... Smoother finish which is usually painted or limewashed West Midlands plaster removing render from stone the damaging effects by. An uphill terrace house or exterior walls softwashing techniques in Shropshire and the house had hygroscopic so! Damp and damage from the internal walls of Georgian house, circ when the surface is.. Cottage located in Oulton on the outskirts of Leeds has seen a lot of history our most frequently asked!!

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