First, a breathable radiant barrier should always be used here.

Radiant barrier works extremely well in this application for two reasons.

Lack of, or incorrectly installed, radiant barriers during the hot season.

This means that ground moisture will not be able to pass through the radiant barrier and enter the living space.

A radiant barrier system is defined as a reflective material facing an air space.

Radiant barriers must face an adequate air-gap to be effective.

Radiant barrier may be used as a vented skin around the exterior of a wall.

Calculating the performance of radiant barriers is more complex.

Reflective aluminum foil is the most common material used as a radiant barrier.

If an air space is not present or is too small, heat may be able to conduct through the radiant barrier.

The most common application for a radiant barrier is facing into attics.

Radiant barriers are highly effective for attic spaces in hot climates.

For this reason, trying to associate R-values with radiant barriers is difficult and inappropriate.

This is usually achieved by small perforations in the radiant barrier foil.

He pulled his viewer around and detected three men one hundred feet away scurrying to the radiant barrier.

Thermal emissivity values probably best reflect the effectiveness of radiant barriers.

Below the roof there should be a radiant barrier and an air gap, which blocks 97% of downward radiation from the sun.

Radiant barriers may or may not exhibit high visual reflectivity.

The furring strips ensure that the radiant barrier faces into a sufficient air space.

Emissivity values are the appropriate metric for radiant barriers.

Radiant barriers prevent radiant heat transfer equally in both directions.

Dust should be a factor of consideration in determining the radiant barrier attic application that is right for you.

Radiant barriers are also quite effective in floor systems above unheated basements and crawl spaces.

Good insulators are not necessarily good radiant barriers, and vice versa.

Radiant barriers can function as a vapor barriers and serve both purposes with one product.