Foam board insulation is easy to use and a great DIY way to add some insulation. It comes in standard-size 4×8 sheets and smaller sizes, in thicknesses from 1/4-in. to two inches. Some types of ...

Now consider - are you going to install a baffle system first in your rafters as many leading insulation contractors do? How far down are you going to foam - do you know where to stop? Do you know ...

For example, fiberglass insulation is cost-effective but less airtight, while spray foam ... rigid foam boards on the backside of the wall to boost R-value and prevent air leaks. Install a radiant ...