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Reply With QuoteIf removing the weatherboards put batts in the walls, put up builders wrap then put on the new cladding
Insulating an old house.. I have a question regarding insulating an old weatherboard house that faces East North East, backs into a hill (no to very little western sun) and has tree shade on both Northern and Southern sides.
I’m looking at replacing the weather boards with Axon cement sheet and insulating. The double hung sash windows will be kept for now. (Replaced at later date)
What’s my best option for walls, floor and roof. I have good access to all areas. I’m happy to batten out, double insulate, whatever it takes!! Also happy to be directed somewhere.
Thanks in advance
Russ
If removing the weatherboards put batts in the walls, put up builders wrap then put on the new cladding
I read in another thread of someone who used batts, then brace ply then 6.5 mm wrap then battens then the cladding. I really want to insulate as well as possible. Is there a best practice?
Batts and blanket in the ceiling?
Batts and ?? Under the floorboards?
We used a combination. Fibre batts in the walls and ceiling but some small areas had a double layer of Foilboard and an airgap.
We did sheath the house in ply but that was mainly to get it back to lock-up ASAP. We then did RFL wrap, batten out and clad with corrugated steel with a second layer of RFL. More to keep out the summer suns heat tho and if you are mainly shaded from the Western sun I don't think you would need to go that far. Roof has R2.5Anticon and R3.6 batts on the ceiling
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Leaving out the brace ply you’ve used batts in the wall, followed by foil wrap followed by battens, more wrap then the cladding??
Yes a double layer of RFL with an airgap between them. If we were doing it again and were cashed up we would use 20mm Foilboard tho.
We just did the last wall and used foilboard rather than Sisalation and it is far more effective.
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So would I use batts between the studs then 20mm foil board then battens then foil wrap and then the cladding?
Batts between the studs, then RFL housewrap, then battens and cladding. Adding the Foilboard on top of the battens only if funds available and insolation due to aspect was a problem or you really wanted to maximise R-value in the walls
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I’m really trying to maximise keeping the house temp as stable as possible without heavy power use. So foilboard straight behind cladding? I did see someone had wrapped their home in a 6.5mm foam wrap? Is that something you know about? Am I wasting time and money considering I have single glazed sash windows? I have repaired them and greatly reduced draughts and we intend to use a heavy backed curtain.
Thanks in advance for your information
Do everything else first Double glazed windows if possible [ lots of dollars but worth it] sealing all leaks etc; before going the extra yards with the cladding. It's hard to keep a lightweight house temperature stable, that takes a lot of mass to store the energy, probably several hundred tonnes of it as in earth berming etc.
What's your heating/ cooling??
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Question should be moved to the Heating and Cooling section.
More expert people here than I am and you may get a better answer in the right place.
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