Foil Backed Roof Sheathing Reviews

You are getting a new roof so why not scrape off the shingles put down roofing felt thenradiant barrier foil and thenshingles right on top.

Foil backed roof sheathing reviews.

Basically plywood or osb sheathing with a thin aluminum facing on one side radiant barrier sheathing installs like any other roof sheathing. Reduces up to 97 of radiant heat. How traditional roof sheathing works. Radiant energy transferred through standard roof sheathing creates heat build up in the attic.

The most effective radiant barrier sheathing is a structural roof sheathing panel which consists of an osb panel with heat reflecting foil laminated to one side. One reason contractors avoid using foil backed osb in wall systems is because it is hard to create the air gap needed for foil backed osb to work properly. Other kinds of radiant barriers combine reflective materials usually aluminium foil with materials like plastic films cardboard and kraft paper. You might wonder why the shiny side facing down wouldn t just reflect heat back into the attic.

The potato with foil will stay hot longer since the foil will reduce or slow down the amount of energy heat emitted. At first it sounds reasonable. Check out these thermostat radiant barrier installation instructions. With no barrier to restrict the heat it radiates through the insulation into living spaces causing room temperatures to rise.

This is similar to taking two hot baked potatoes and wrapping one with foil. Installing radiant barrier roof sheathing. By putting the foil on the bottom of the roof deck it greatly reduces the ability of the deck to radiant heat downward. It probably goes without saying but i ll mention this anyway radiant barrier sheathing is installed on your house during the construction phase with the foil side facing down towards the living space your attic.

More energy is needed to cool the house and that means higher energy costs for. It reduces attic temperatures by up to 30 degrees fahrenheit and it blocks up to 97 of radiant heat. Similarly foil backed osbs installed on the attic floor may increase roof shingle temperatures by 2 f or less. What an easy way to install a radiant barrier right.

Foil under shingles will not create a radiant barrier unless there is an airspace on one side of the foil. The oak ridge national laboratory found that roof mounted foil backed osbs may increase roof shingle temperatures by 2 to 10 f.