When you are insulating the exterior walls of a home to improve energy efficiency, you have to make sure walls can dry. Applying spray foam directly to the back siding of your cladding doesn’t sound like a good idea to me, but I’d need a few more details. And first check out this page to see how we install siding –
So a few questions – Where are you building? Building for your specific climate zone is important (find your building climate zone here). What is the current wall assembly? I don’t quite understand how you would get the insulation onto the siding unless this is a cottage with open stud walls so you see the back of the siding from inside the house. But the short story is – walls need to be able to dry, and I don’t see how they will if you spray foam the back of the wood. Exterior siding is meant as a weather shield, it protects the control layers of your wall (air barrier, vapor barrier, insulation, weather barrier), so you should have an air space separating your control layers and your siding to allow humid air to escape and moisture to drain. If I’m missing something here please give me more details and we would be happy to help.
Top Tips for choosing the best siding for your house - comparisons of siding products with cost, durability, ease of installation & attractiveness - because balancing…
Drainage planes and air spaces: Siding installation tips so your walls can dry. Siding Installation
The walls of your home are an environmental separator. Their job is to keep…
Shou sugi ban burnt wood exterior cladding is naturally made, very durable & originated as a Japanese wood finish for homes revealing the beauty of the natural preserved timber…
Weather barriers (or more accurately water-resistive barriers) keep bulk water away from vulnerable building components and allow walls to dry at the same time. A technical…
Are you planning on repainting brick finishes on the exterior or interior of your home? Using standard oil or latex paint can trap moisture & at best may cause the paint to chip…
Spray foam insulation has been used primarily for home renovations as a way of sealing and insulating in one step, but spray foam is now even finding a home in new build - but…
When you are insulating the exterior walls of a home to improve energy efficiency, you have to make sure walls can dry. Applying spray foam directly to the back siding of your cladding doesn’t sound like a good idea to me, but I’d need a few more details. And first check out this page to see how we install siding –
How to install exterior siding so walls can dry
So a few questions – Where are you building? Building for your specific climate zone is important (find your building climate zone here). What is the current wall assembly? I don’t quite understand how you would get the insulation onto the siding unless this is a cottage with open stud walls so you see the back of the siding from inside the house. But the short story is – walls need to be able to dry, and I don’t see how they will if you spray foam the back of the wood. Exterior siding is meant as a weather shield, it protects the control layers of your wall (air barrier, vapor barrier, insulation, weather barrier), so you should have an air space separating your control layers and your siding to allow humid air to escape and moisture to drain. If I’m missing something here please give me more details and we would be happy to help.