Wood Fiber Insulation R Value

R value is a measure of insulation s ability to resist heat traveling through it.

Wood fiber insulation r value.

Protector hd allows easy efficient scoring cutting and snapping which permits fast tight fabrication and all in a low dust environment. 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. 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. High r value 2 5 r.

As a benchmark one inch of solid wood has an r value of 1. 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. 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. The table below shows what levels of insulation are cost effective for different climates and.

Flexible insulation boards made from natural wood fibres. Provides significantly more thermal insulation r value than wood fiber or gypsum boards. R values per inch for commonly used roof insulation boards range from 2 7 for wood fiber perlite and foamed glass to 5 for extruded polystyrene and 5 6 for isoboards. In addition the same substance with a different thickness has a different r value.

The higher the r value the better the thermal performance of the insulation. High r value rigid insulation board and roof underlayment in one made from moisture resistant wood fibers. Aging effects comments. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.

Wood r values log wall r values vary 16. Sarking and sheathing boards for roofs 5. Flexible thermal insulation from wood. 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.

A three layer stucco system covers this single ply wood fiber insulating board. High quality single ply construction. In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation. The closer a climate gets to an extreme in heat or cold the more necessary it becomes to use insulation with a higher r value.

Moisture resistant wood fiberboard insulation and weather resistive barrier in one for exterior walls under rain screens. 1 01 1 41 softwoods 0 71 hardwoods the r value of wood varies by wood density species moisture content. Insulation or other building material 9.