Roof Deck Radiant Barrier

A radiant barrier can be effective with an asphalt shingle roof only when installed inside the attic either to the underside of the roof decking or to the underside of the roof rafters.

Roof deck radiant barrier. This basically allows for wood rot to continue and inspectors have a more difficult time finding areas of concern. The reflective material which is usually aluminum is applied to either one or both sides of the material that is being used as a barrier. Also any water leak will fall onto the backside of the radiant barrier and roll down the slope until it reaches the eaves soffits. The heat that would normally be absorbed by the insulation is now being bounced back to the roof deck and causing the roof to emit more heat upward rather than both upward and downward.

The temperature of the attic space increases and that heat is transferred to the building below. Radiantguard radiant barrier foil insulation installed in an attics can reduce attic temperatures by up to 30 degrees when stapled with a staple gun to the underside of roof rafters by reflecting up to 97 of the radiant heat that strikes its surface thereby reducing heat transfer from the attic to living spaces resulting in lower utility bills. It reduces attic temperatures by up to 30 degrees fahrenheit and it blocks up to 97 of radiant heat. In these attic space applications there is an air space below the radiant barrier.

Barrel type tiles or roofs installed over wood battens which create the needed air space. Radiant barriers come in a variety of forms. Attics heat up when the sun s radiant energy heats the shingles and the heat is transferred to the interior attic space through the roofing materials via conduction. Radiant barriers are utilized to reduce summer heat gain in attics.

As a result your home s interior temperature will stabilize creating improved comfort for you and your family. Installing a radiant barrier underneath the roof will cause the roof temperature to increase by a few degrees usually 2 10º. This can be roof shingles reflective chips roof sheathing etc. There is a way to incorporate radiant barrier foil into a re roofing application.

This reflection insulation also has high mechanical properties making it perfect for load bearing applications in construction. There are several types of roofs that have an air space between the roofing material and the roof deck. Benefits of radiant barrier roof underlayment when you add a radiant material to your roof or attic you will help your home retain its conditioned air during both hot and cold seasons. Product overview the osb techshield radiant barrier osb is engineered to improve energy efficiency.

Installed in over 1 5 million homes in the united states lp techshield panels also lower attic temperatures up to 30 f. As the original 1 brand of radiant barrier sheathing lp techshield panels vaporvents technology prevents moisture buildup during and after construction while blocking up to 97 of radiant heat in roof panels. Increasing summer energy consumption and cooling costs. April 19 2019 posted in.

The only way is if you can create an air space on one side of the foil.