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Franzi010921 Mar 2022 10:58Hello,
We have purchased a house built in 1962 and are currently undergoing a complete renovation.
The house has 36cm (14 inches) thick sand-lime brick walls; the lower part (up to 50cm (20 inches) high from the foundation) consists of 36cm (14 inches) solid fired clay bricks and it stands on a strip foundation.
New triple-glazed windows and doors have already been installed, and there is a new roof with added insulation above the ceiling of the top floor (20cm (8 inches) mineral wool).
The floor inside the house is also complete; on top of the old concrete base a layer of crushed foam glass was compacted, followed by insulation for the underfloor heating system and the heating screed.
There is no basement.
This year we plan to renovate the exterior facade and, based on advice from masons and others, we have come up with the following approach:
- Render the solid bricks with cement plaster and embed reinforcing mesh, then apply a two-component thick coat, followed by insulation
- Attach XPS panels with a thermal conductivity (WLG) of 32, 120mm (5 inches) thick, covering 60cm (24 inches) in height starting from the strip foundation
- Apply a bitumen layer on top and a drainage membrane (dimpled membrane) in front
- Install a PVC base profile and insulate the facade above this with 140mm (6 inches) stone wool insulation, WLG 34
There will also be a splash protection in the form of a gravel bed surrounding the house.
We have already received many opinions, including from “experts,” with contradictory advice such as "this is possible" or "this will not work," so we are unsure what to trust.
Perhaps someone here has some tips to share.
Thank you very much and have a great start to the week.
We have purchased a house built in 1962 and are currently undergoing a complete renovation.
The house has 36cm (14 inches) thick sand-lime brick walls; the lower part (up to 50cm (20 inches) high from the foundation) consists of 36cm (14 inches) solid fired clay bricks and it stands on a strip foundation.
New triple-glazed windows and doors have already been installed, and there is a new roof with added insulation above the ceiling of the top floor (20cm (8 inches) mineral wool).
The floor inside the house is also complete; on top of the old concrete base a layer of crushed foam glass was compacted, followed by insulation for the underfloor heating system and the heating screed.
There is no basement.
This year we plan to renovate the exterior facade and, based on advice from masons and others, we have come up with the following approach:
- Render the solid bricks with cement plaster and embed reinforcing mesh, then apply a two-component thick coat, followed by insulation
- Attach XPS panels with a thermal conductivity (WLG) of 32, 120mm (5 inches) thick, covering 60cm (24 inches) in height starting from the strip foundation
- Apply a bitumen layer on top and a drainage membrane (dimpled membrane) in front
- Install a PVC base profile and insulate the facade above this with 140mm (6 inches) stone wool insulation, WLG 34
There will also be a splash protection in the form of a gravel bed surrounding the house.
We have already received many opinions, including from “experts,” with contradictory advice such as "this is possible" or "this will not work," so we are unsure what to trust.
Perhaps someone here has some tips to share.
Thank you very much and have a great start to the week.
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