Wood Fiber Insulation R Value

1 01 1 41 softwoods 0 71 hardwoods the r value of wood varies by wood density species moisture content.

Wood fiber insulation r value.

Moisture resistant wood fiberboard insulation and weather resistive barrier in one for exterior walls under rain screens. Flexible insulation boards made from natural wood fibres. The higher the r value the better the thermal performance of the insulation. Insulation level are specified by r value.

In addition the same substance with a different thickness has a different r value. Protector hd allows easy efficient scoring cutting and snapping which permits fast tight fabrication and all in a low dust environment. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. 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.

As a benchmark one inch of solid wood has an r value of 1. Recommended home insulation r values. High r value 2 5 r. 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.

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

High r value rigid insulation board and roof underlayment in one made from moisture resistant wood fibers. In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation. 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. Flexible thermal insulation from wood.

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. Aging effects comments. Wood r values log wall r values vary 16. A three layer stucco system covers this single ply wood fiber insulating board.

Sarking and sheathing boards for roofs 5. The table below shows what levels of insulation are cost effective for different climates and. Insulation or other building material 9.