removing render from stone

Bought an old house (circa 1860), 2 foot solid stone walls some damp issues (sources of which mainly found and some hopefully sorted). Note that much of the stone is pointed with cement, which has exacerbated the problem. Lime wash is reversible too,so restoration is possible at a later stage. The fires are often blocked and capped off. 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. how long Removing render from stone houses. Get it done once and get it done right the first time. . 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. Removing render or pebbledash is necessary to avoid dampness occurring on the interior of the building. 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. applied ,etc ,etc. 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.. Removing sticker residue from stone and concrete surfaces can be a challenge. how long Removing render from stone houses. These are kitchen walls, which are adjoining an uphill terrace house or exterior walls. Whilst there's nothing really wrong with it apart from needing painting, we've been toying with the idea with removing it to expose the stonework. ChocolateRicecake Tue 08-Aug-17 22:42:51. 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. Old stone walls were built thick usually 300-500mm thick… Yes, that’s half a metre thick. First post here. The latter creates a smoother finish which is usually painted or limewashed. 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. 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. 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. 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. Remove existing render the traditional way. You may well come across timbers that were rendered over-they would have been set into the wall as lintels,plates etc and due to the cement render may well have rotted causing structural weaknesses that really must be addressed Check out the videos and photos we have. Sorry if this is the wrong forum. I am removing plaster and Cement Render from Red Brick in an old (1900ish) house as the walls need to be damp-proofed. Posted By Castelo Construction Lda in Building in Portugal, buying property in portugal, How to . Many of the rust removers available in stores can damage stone. 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. Removing a Rock Facade From a House. For dried out render you will need to … Often there are three options : We live in an old ca. The black mound associated with condensation can cause serious respiratory problems. 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. So before this period, you can expect a higher moisture content on the lower sections of a solid wall type than say a modern cavity wall house with a damp proof membrane. Soon after removing the render the walls dried out. It has changed the warmth, smell and comfort of the room within. Do not use a wire brush, since the bristles may scratch your paving stones. It may come as a proprietary "rust remover" in which case you should follow the manufacturer's instructions to the letter. Removing cement based render from brickwork: One of our most frequently asked questions! It was cold and damp when we bought the place, and now it's only cool (well, it is stone!) 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. Believe it or not, it’s a type of Green algae! It’s not just cement based renders that can cause damp, other damp problems in older houses can be caused by condensation. 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. The key is to be able to remove the render with as little impact to the wall as possible-approach at a shallow angle to the wall and not too hard!This will lift the render away in sheets with luck and leave you with bricks hopefully whole, but if not ,then not completely shattered. . ecological cement stain remover. 1820. ., 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. Concrete renders (sand and cement renders) do not perform well on damp solid walls and can cause some serious damp and damage. 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. Cement renders can sometimes be removed by working over the surface with a hammer, aided, where necessary, by a chisel. The render was unable to breathe it had also cracked, allowing water penetration. Follow the link for more information on the damaging effects caused by the inappropriate use of concrete mortars. Before 1875 no measures were required for rising damp. Wizard Exterior Cleaning is able to provide cleaning of Render, K-Rend and Stone using softwashing techniques in Shropshire and the West Midlands. Heating is mostly provided through gas central heating. 3.lime rendering: Whether you have just finished building a stone wall, or you simply were left with some residual concrete after removing a slab that was built on stone, you can try to remove it on your own. 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. buy online today, or call 01844 279274 Due to the nature of solid brick walls (rather than cavity walls), it is important that a breathable render is applied, NOT a concrete render (which doesn't breathe). This post covers removing concrete render from a solid brick wall in an old building. There is no wall that cannot be restored, given it is structurally sound that is. The walls have now dried out and the house is once again able to breathe. If you, like many other folk, live in a period property in the UK, it is very likely to have some form of render on the existing walls. The difficulty of the task depends on how much residue remains on your stone structure and whether you work on a wall or a floor made of stone. 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. If you need advice on how to remove rust stains from pebble dash you have come to the right place. Using a variety of methods, this is normally not as big a job as you might think. Other areas are just painted brick. This is where our experience comes into play as we can advise you on the viability of restoration in terms of your budget and the condition of the bricks/stone etc. Conversely, rough-cast rendering requires the mixing of larger stones or pebbles in with the cement and sand, prior to applying it to the walls. A product called Iron Out is available from most home centers and hardware stores. Just as big a plus is the aesthetic consideration- the bricks,once restored will enhance the appearance of the building and in so doing add value too! 1860s stone house which has painted cement render. 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. The lime-based plaster on the interior of the house had hygroscopic properties so was able to absorb moisture inside the home. 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. 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. 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