How Do You Add Radiant Foil To Your Roof Sheathing

There is a way to incorporate radiant barrier foil into a re roofing application.

How do you add radiant foil to your roof sheathing.

There are several types of roofs that have an air space between the roofing material and the roof deck. Starting at one end of your attic install our ultima foil breathable radiant barrier over across attic floor joists plywood decking or existing insulation. A radiant barrier is typically stapled to the bottom truss chords against the deck sheathing. Barrel type tiles or roofs installed over wood battens which create the needed air space.

This depends on the r values of insulation installed design of the building and other factors. Radiant barriers are utilized to reduce summer heat gain in attics and help to improve the efficiency of green building envelopes. Use a stick 1 4 furring strip with nail in the end works well to help push the barrier into the tight spaces of your attic. However radiant barriers can also be installed in other ways such as having it infused with your roof decking or underneath tiles.

Radiant energy transferred through standard roof sheathing creates heat build up in the attic. For a picture of this in action you can check out the product listing on amazon. Radiant barrier sheathing can lower your home s energy consumption by up to 17. Without the foil layer the osb sheathing will absorb heat and radiate it into the attic space in the summer or outside during the winter.

Black asphalt roof shingles absorb over 90 of the radiant heat that strikes them making them easily over 170 degrees on a hot summer day. With no barrier to restrict the heat it radiates through the insulation into living spaces causing room. A radiant barrier can lower heat transfer from attics to the building below keep the attic space cooler and lower cooling costs by up to 17 in warmer climates. Thermostat radiant barrier roof sheathing can help you earn leed points under the nahb green building standard.

Adding more attic ventilation will help but not much. The only way is if you can create an air space on one side of the foil. The radiant foil layer is perforated for ventilation to protect against condensation and moisture build up. Even with excellent airflow in an attic the temperature of the top surface layer of the insulation will only drop a few degrees.