Insulation Value Of Wood Siding

When determining how much insulation you need don t guesstimate calculate.

Insulation value of wood siding.

Non insulated aluminum steel or vinyl. R value measures how well certain building insulation materials can resist heat. The most common and least expensive way is to install it right on top of your current wood siding. Wood r values log wall r values vary 16.

The higher the r value the greater the insulation performance. If you are using thicker 5 8 inch shingles the installed siding will have an r value of at most about r 1 9. Add insulation to attic. Logs of around 6 inches would then have an r value that is about 8.

Aging effects comments. Specifically here s how the different types stack up against one another. With no insulation behind either material wood siding is slightly more energy efficient having an r value of 0 81 to 0 87. 1 01 1 41 softwoods 0 71 hardwoods the r value of wood varies by wood density species moisture content.

This value when compared to other insulating materials is actually pretty low. Insulation or other building material 9. Existing 3 4 inches of insulation. For instance while a brick veneer will only get you an r value of around 0 11 vinyl siding typically has a measurement of 0 61.

This is negligible however as a fully insulated exterior should have an r value of 13. Most such r value tables ascribe an r value of r 0 87 for wood shingle siding. Vinyl siding without insulation has an r value of 0 67. Here s a brief list of siding materials and their r values.

Most siding materials have an r value of less than 1. If any readers think that the r value of cedar shingles might be higher it s worth consulting standard r value tables for a reality check. In hardwood it is 0 71. In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation.

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. Recommended insulation levels for retrofitting existing wood framed buildings. These extra layers or thickness brings the siding farther away from the house. That includes standard vinyl steel or aluminum siding without added foam insulation.

Per inch r value of softwood is 1 41. When doing this insulation is first installed over your original wood siding giving you double the insulation value.