Wall Vs Attic Insulation

As for attic vs.

Wall vs attic insulation.

The highest r value that wall insulation reaches is an r2 7hd however we recommend a minimum of r4 0 for ceiling insulation. I know also that adding insulation and upgrading areas in the attic is a lot easier to do on a pre existing home than upgrading walls windows. Add thick insulation batts to the attic. Spray foam offers the best attic insulation performance available.

Hire a pro to install spray foam insulation. The largest pay back will be seen here. This comes in rolls that fit between the studs of a 2 4 framed wall. When building an energy efficient home especially in a hot climate i know that a lot can be done to improve it s energy consumption.

If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor. Wall insulation whenever exterior siding is removed on an. Batts are long strips of unrolled and unfaced fiberglass insulation. You can achieve better thermal performance in your attic by adding an additional layer of insulation.

Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system. Insulation in a knee wall that s exposed on the back or top or bottom won t work very well. Installing attic insulation is one of the most valuable ways to save energy and keep your home warmer. Choose from two types.

Wall insulation also comes in different thicknesses and widths suited for wall. For wall insulation in 2 6 walls r 19 or r 21 kraft faced fiberglass insulation is recommended which comes in rolls too. You can use rigid foam panels or do as tom silva does with nearly all houses these days. I don t understand your last question but if you have knee walls exposed to a vented attic those definitely need to be air sealed and fully encapsulated e g six sided enclosure of each stud bay.

For wall insulation in 2 4 walls typically an older home you should use r 13 or r 15 kraft faced fiberglass insulation. When installed properly both types of insulation fill all of the nooks and crannies in a space and. The higher the r value the better the thermal performance of the insulation. Add r5 to r6 insulative wall sheathing beneath the new.

You would stop heat loss from natural convection and block solar gain an increase in heat in the. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and. Wall insulation always go for the attic. Add r5 insulative wall sheathing beneath the new siding.

They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.