Wood Fibre Insulation R Value

Insulation or other building material 9.

Wood fibre insulation r value.

R value is a measure of insulation s ability to resist heat traveling through it. In addition the same substance with a different thickness has a different r value. As a benchmark one inch of solid wood has an r value of 1. The table below shows what levels of insulation are cost effective for different climates and.

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. Meeting code mandated r values if for example you need an r value of 25 you would need 9 inches for perlite to 4 46 inches of thickness for isoboards. Aging effects comments. The higher the r value the better the thermal performance of the insulation.

Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. Wood r values log wall r values vary 16. Recommended home insulation r values. Flexible thermal insulation from.

High r value rigid insulation board and roof underlayment in one made from moisture resistant wood fibers. Bricks are generally 4 inches thick so it is important to look at r value for 4 inch bricks rather than an r value of brick in general. Woodfibre insulation wedge for window sills. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.

High quality single ply construction. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7. Etics external thermal insulation compound system made from natural wood fibre. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.

In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation. A three layer stucco system covers this single ply wood fiber insulating board. Moisture resistant wood fiberboard insulation and weather resistive barrier in one for exterior walls under rain screens. Whether you are constructing a floor ceiling wall or roof the steico system provides a total building solution.

Insulation level are specified by r value.