Insulation Value Of Fiber Cement Siding

The best way to install the cement board siding is to remove the old siding down to the studs and then add a rigid foam board insulation.

Insulation value of fiber cement siding.

As far as insulating value old cedar siding or new cement board siding would be about equal. Current sources of asbestos r values such as engineeringtoolbox provide very inconsistent data. While fiber cement siding is energy efficient vinyl siding has the potential for this too. In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation.

Properly insulated exterior walls in your house will not only increase comfort but also help you save on heating and cooling costs. For instance if you have a material with an r value of 12 attached to another material with an r value of 3 then both materials combined have an r value of 15. Thermal conductivity k 0 744 for cement board k 0 14 for asbestos millboard and k 1 66 for asbestos cement sheets. Half inch thick rigid foam insulation has an r value of r 2 to r 3 5.

The 2015 remodeling magazine cost vs. That s a little less than you ll get from vinyl siding which is rated as r 0 61 but the. It is likely the newer siding provides a little better seal against air infiltration. But the same source puts asbestos cement k 2 07 and for loosely packed asbestos k 0 15 this is very inconsistent data.

Many older homes have less insulation than homes built today but adding insulation to a newer home may also pay for itself within a few years. 0 11 as you can see none of these is going to make a significant difference by itself in lowering your energy use or your energy costs. However it is important to remember that insulated vinyl siding does not require expensive routine maintenance such as painting and caulking which can cost up to 6 000 each time per home advisor. Fiber cement siding doesn t add much insulation to your wall system measuring in at a mere r 0 50.

Because vinyl siding is thinner than fiber cement siding it can better accommodate insulation beneath its surface.