Roof Radiant Barrier With Foam Insulation

By reducing the amount of radiant heat reaching the insulation in your attic the insulation remains cooler and is able to keep your home more comfortable.

Roof radiant barrier with foam insulation.

Radiant barrier is a highly reflective material typically made of aluminum which blocks the transfer of radiant heat by reflecting it away from its surface offering a permanent way to reduce your monthly utility costs. A radiant barrier is designed to increase the effectiveness of your thermal envelope. Dust accumulation on the reflective surface will reduce its reflective capability. Radiant barrier foil insulation systems block radiant heat energy instead of absorbing it like fiberglass insulation.

This means radiant barrier can increase the life of the roof shingles. The list of uses includes crawl space radiant floor attic and walls. Radiant barriers and reflective insulation systems work by reducing radiant heat gain. Builders dealers diy framers.

The radiant barrier should be installed in a manner to minimize dust accumulation on the reflective surface. All manufacturers of radiant barrier sheathing say not to spray against their product it will render it useless. I typically spray enough foam 5 lb open cell to achieve r 38 in our roofs. Radiant barrier sheathing is inexpensive and reflects thermal radiation to keep attic spaces cool.

Our product is easy to handle and install. Radiant barrier roof sheathing helps to improve comfort in the building interior during the warm summer months and reduces energy costs. 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. I am exploring the use of lp tech shield or foil faced radiant barrier in an open web truss roof.

It is meant to supplement insulation not replace it. Because heat always moves from hot areas to cold areas radiant barrier sheathing also prevents heat transfer from the warm interior during the cooler winter months. Here is some good information on how you can get radiant barrier to the outside of a foam closed attic. May 16 2013 posted in.

Radiant barrier under metal and tile roofs. Reflectix insulation has over 20 energy saving applications for reflectix insulation has over 20 energy saving applications for around the home. When installing attic insulation a case can be made for both radiant barrier sheathing with typical types of insulation as well as spray foam insulation. To be effective the reflective surface must face 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.