New Build Wall Insulation

Best crawl space and rim joist insulation for new homes.

New build wall insulation. Insulation can be applied directly to the wall or in a new typically timber stud wall set off from the existing wall. Cavity fibrous or cellulose insulation can be installed at levels up to r 15 in a 2 inch x 4 inch wall and up to r 21 in a 2 inch x 6 inch wall. Top 5 things to look out for. You don t want to deal with cold floors or drafts coming from the bottom of the walls of your brand new house or the nightmare of frozen pipes.

Exterior wall insulation problems. Although there is a great deal of current debate about building regulations not changing fast enough to keep up with modern efficiency demands the rules regarding external wall insulation are an exception. While the building regulation for cavity walls now requires a u value of 0 21w m2k many energy conscious home builders will try to get below this mark as it provides the best return on investment. Gone are the days of simply picking an outer brick and an inner block and adding in some arbitrary cavity insulation.

The cavity wall insulation you choose is vital in restricting as much as possible of the 35 of heatloss that a home loses through its walls. R values can be higher for foam insulation and other advanced insulation systems. Which one is best will depend on the condition of the existing wall if it is a solid or cavity wall and if there is any moisture penetration. Whether it s pink white yellow or blue all insulation is at least a little bit green after all anything that saves so much energy gets high marks for environmental friendliness.