Plastering Victorian house
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MikeEngTech
Posts: 47 Forumite
Hi,
Ivee asked 3 builders and everyone wants to use plasterboard and multifinish.
Would you say I need to use lime plaster for breathability? Will I need air bricks?
It’s a brick, cavity, brick construction.
Also need to brick up the old external door in the kitchen and they want to use aerated block on the inside then plasterboard and skim as usual.
Planning on staying for a long time. Might not be able to afford a life plaster job but I at least would like to understand the pros and cons more.
Ivee asked 3 builders and everyone wants to use plasterboard and multifinish.
Would you say I need to use lime plaster for breathability? Will I need air bricks?
It’s a brick, cavity, brick construction.
Also need to brick up the old external door in the kitchen and they want to use aerated block on the inside then plasterboard and skim as usual.
Planning on staying for a long time. Might not be able to afford a life plaster job but I at least would like to understand the pros and cons more.
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Comments
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It would be pretty unusual for a Victorian house to be of cavity construction?
I!!!8217;d say that lime plaster would be less important with cavity construction as its purpose is to prevent damp but I think you need to be sure that it is both cavity and Victorian.
Lime plaster is more flexible (houses move, especially old ones) and yes, breathable for dampness to evaporate better. It would certainly be better if you are able to skim over existing lime plaster on external walls with like. Solid construction external walls with lime plaster would also be preferable. They do get cold and liable to condensation more than damp. If you!!!8217;re going back to brick then you may have to put insulated plasterboard on the walls anyway to meet building regs.
Air bricks are important for the sub floor below joists. I am not sure why you!!!8217;ve included that question with plastering. Are you just talking about vents above the floor?Everything that is supposed to be in heaven is already here on earth.
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Yes had full survey and engineer estimated house to be 1890 and said cavity, he area is known for it and I know it!!!8217;s rare.
Only mentioned the air bricks to help it breath if covering it on plasterboar as a builder said this when I asked about lime. Thanks.0 -
Doozergirl wrote: »It would be pretty unusual for a Victorian house to be of cavity construction?
I!!!8217;d say that lime plaster would be less important with cavity construction as its purpose is to prevent damp but I think you need to be sure that it is both cavity and Victorian.
Lime plaster is more flexible (houses move, especially old ones) and yes, breathable for dampness to evaporate better. It would certainly be better if you are able to skim over existing lime plaster on external walls with like. Solid construction external walls with lime plaster would also be preferable. They do get cold and liable to condensation more than damp. If you!!!8217;re going back to brick then you may have to put insulated plasterboard on the walls anyway to meet building regs.
Air bricks are important for the sub floor below joists. I am not sure why you!!!8217;ve included that question with plastering. Are you just talking about vents above the floor?
I lived in an 1888 built house that was cavity ground floor, and solid wall upstairs, a very strange configuration, but not uncommon in my neck of the woods.0 -
Any more thoughts? Just that all builders want to use aerated block, plasterboard and multifinish any chance they get and I'm not sure. I can just imagine damp trapped and a big agro.0
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The builders want to use blocks and plasterboard and gypsum plaster because its cheap, easy and it's all many of them know. What would you want them to block up the door with? Bricks are expensive and time-consuming to lay.
On a late Victorian house with cavity walls I'd say don't bother with lime-plaster- it's more for 200-year-old country cottages. Not that you'll find a builder willing to use it or even knows what it is, but hey a bit of breezeblock smeared with gypsum, now that's a thing of beauty!0 -
Suppose as it has a cavity I!!!8217;m probably worrying too much0
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I might go for cement then plastering straight onto the brick rather than dot and dab plasterboard then. Had that in my previous place and it worked well. Only did the plasterboard in the bathroom.0
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Plasterboard and/or gypsum plaster is fine on upper levels, not ideal, but fine, as there is little risk of moisture. On ground floors where there IS a risk of moisture then applying a relatively water-resistant material like gypsum/plasterboard and especially cement! may cause saturation of that material and dampness where there was none before. It's difficult to get good advice but try a building surveyor specialising in damp problems rather than a damp specialist selling waterproofing.0
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