Foam Board Insulation Radiant Barrier

Foam isn t going to perform like radiant barrier because like traditional insulation foam slows conductive heat gain loss but it doesn t actually stop it.

Foam board insulation radiant barrier.

Benefits of installing spray foam insulation. Double reflective insulation roll with staple tab edge for a versatile insulation product select for a versatile insulation product select reflectix insulation to help save energy costs throughout the home. Radiant barrier foil is different than spray foam because atticfoil s reflectivity of radiant heat is 97 meaning you stop the heat from ever even entering the home. The rigid foam insulation addresses the conduction and convection and adding a radiant barrier addresses radiation you ll find that adding a radiant barrier is best practice but only when there is an air space.

A number of factors should be taken into consideration when choosing between these two especially the climate zone that you re building in. Foam insulation rigid boards are 4 x8 sheets usually cast of closed cell polystyrene designed to fit directly inside walls against the interior or exterior of plywood sheathing as well as on top of sub floors. Rigid foam insulation also known as insulating boards provide high r values. Whether you use it in a crawl space radiant floor attic or walls you ll find it easy to handle and install.

Builders dealers diy framers. Types of insulating boards choose from three types of insulating foam core boards for wall insulation. Foam insulation most commonly comes in two forms. A radiant barrier insulation system can reduce your attic temperature by as much as 30 f providing cooler attic spaces and more beneficially more comfortable living spaces within your home without the extra load on your cooling system.

Radiant barrier sheathing is inexpensive and reflects thermal radiation to keep attic spaces cool. May 16 2013 posted in. If you remember back to high school science days heat transfers three ways conduction convection and radiation. Another alternative to radiant barrier foil are the various types of foam insulation.

The radiant barrier acts as your first line of defense against radiant heat and the foam closed attic acts as the second line of defense against conductive heat flow. What is foam insulation.