Highest R Value Rigid Foam Insulation

Insulation is rated in two ways r value and u value. Rigid foam insulation comes in various materials including polystyrene r 3 8 to r 5 0 polyurethane r 5 5 to r 6 5 and polyisocyanurate r 5 6 to r 8 0. The r value your insulation needs depends on your local climate.

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Note that the material the insulation is made from will change the r value as well.

Highest r value rigid foam insulation.

Radiant barriers and vapor barriers are not rated by r values. The ultra r r 50 insulating panel is a rigid polypropylene encased vacuum insulation panel that is custom made to the client s specified dimensions. The common denominator among varieties of insulation is the r value. High r cw plus insulation is a rigid closed cell xps board.

The r value is a calculation which measures the flow of heat through an insulation product or its. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and. How to achieve r 21 in a 2x4 wall. You can even place it under the foundation slab.

For example insulating a 10 square foot wall area to r 15 costs about 3 40 to 4 00 with fiberglass insulation while a comparable r value for rigid foam costs roughly 10. Barrier ultra r super high r building panels produced by glacier bay use aerogel and are rated up to r 30 per inch or in barrier ultra r panels r 50 per inch. The best insulating rigid foam. They keep your home at a comfortable temperature without the need to crank your heat.

Install it anywhere from the roof to the foundation. Rigid foam insulation also known as insulating boards provide high r values. Fiberglass insulation is less than half the price of rigid foam insulation when calculated by r value per square foot. The main advantage of high r cw plus insulation over other xps boards is its higher r value per inch.

Rigid insulation is one of the best tools to reduce your energy costs. Rigid foam insulation offers as much as double the r value of traditional fiberglass batts according to the united states department of energy. There is also less waste with fiberglass insulation. They contain low conductivity gases in the cells usually one of the hcfc or cfc gases.

Polyurethane and polyisocyanurate are both closed cell foams. As a benchmark one inch of solid wood has an r value of 1. Cost polyiso is the most expensive of the foam board insulation products however it s the highest r value. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another.

Unfinished foundation and basement walls are typical applications for these boards which only require two to three inches to achieve the recommended r 11 for basement. Foamular high r cw plus insulation combines outstanding moisture resistance with excellent thermal performance. This additional r. Your home doesn t necessarily need the highest r value insulation.

Foam board insulation.

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