Wood Fibre Insulation R Value

Insulation level are specified by r value.

Wood fibre insulation r value.

Flexible thermal insulation from. The higher the r value the better the thermal performance of the 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. Aging effects comments.

Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. 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. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Moisture resistant wood fiberboard insulation and weather resistive barrier in one for exterior walls under rain screens.

Wood r values log wall r values vary 16. 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. 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.

In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation. Whether you are constructing a floor ceiling wall or roof the steico system provides a total building solution. A three layer stucco system covers this single ply wood fiber insulating board. High r value rigid insulation board and roof underlayment in one made from moisture resistant wood fibers.

Woodfibre insulation wedge for window sills. In addition the same substance with a different thickness has a different r value. 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. 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.

Etics external thermal insulation compound system made from natural wood fibre. R value is a measure of insulation s ability to resist heat traveling through it. As a benchmark one inch of solid wood has an r value of 1. Recommended home insulation r values.

The table below shows what levels of insulation are cost effective for different climates and.