I live in Colorado and want to add attic insulation to bring my current R19 up to R49. I plan on using blown-in cellulose. I only have soffits at each corner of my home and would like to add more. The eaves have vinyl siding on them and the 4 current soffits are essentially the same material with perforations for air flow, obviously installed together with the rest of the siding. I cant find anything like that at HD. Can I just cut into the vinyl and add some cheap aluminum soffits. Good idea/bad idea?
Also under the current R19 insulation there is no vapor barrier. It has been that way for the 40+ years this house has been around. How important is it to have vapor barrier below. It would be a heck of a mess to pull all that stuff up to add it but I would do it if it is truly important.
Also under the current R19 insulation there is no vapor barrier. It has been that way for the 40+ years this house has been around. How important is it to have vapor barrier below. It would be a heck of a mess to pull all that stuff up to add it but I would do it if it is truly important.