Insulating with siding
I have aluminium siding on the exterior of my house. I was replacing the exhaust vent and noticed that the aluminium siding was placed on top of the older asphalt shingles siding.
So there is plywood and the asphalt siding and then there is another plywood and on top of the plywood is the aluminium siding.
On the inside, I have wall cavities, and then plaster and lath and then on top of the plaster, I have sheetrock. There are small 1/2 inch wooden beams between the plaster and the sheetrock.
I was thinking of insulating with cellulose in the wall cavities. Since there are apparently two sidings installed, I am not sure insulating would be a good idea since the house won’t be able to “breathe”.
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