Reflective Eps Insulation For Roof Rafters

The fiberglass insulation comes in rolls that are 16 to 24 inches wide.

Reflective eps insulation for roof rafters.

This is the same stuff your disposable coffee cup and is made out of and it s used to protect fragile items in their packaging. Reach barrier reflective air garage door insulation kit model 3009 43 78 43 78. Eps is used under roofing over foundation walls and beneath siding. The rolls have a number of 8 foot pieces rolled onto one roll.

The sun s radiant energy is the main reason why your roof gets so hot especially during the summer months. To be effective the reflective surface must face an air space. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. As reflectix notes in their ftc facts document one layer of reflective insulation with an air gap will provide r6 to r7 protection in summer when the roof is hot from the sun.

Radiant barriers and reflective insulation systems work by reducing radiant heat gain. Reflective insulation installation instructions. If the shiny side of the barrier faces the roofing. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation.

The expanded polystyrene eps molders association also offers a free cd rom with a visual overview of eps building applications from wall and floor insulation to roofing and below grade foundations. In the winter however the efficiency drops to r1 to r2 virtually no protection compared to the price. Insulating an existing roof you can add insulation to an existing metal roof by going into the attic and stapling a foil barrier to the rafters. The insulation should be installed with the paper facing out and attached using staples.

The paper will fold over the rafter framing thereby allowing for attachment with staples. There are 2 options 1 directly to roof deck above fiberglass southern zone of the usa only benefit r 6 0 summer r 2 0 winter it is easiest to install either 16 or 24 wide product depending on rafter spacing. Set your store. Dust accumulation on the reflective surface will reduce its reflective capability.

The rubber meets the road on reflectix s website where it says no air space no reflective insulation benefit. Begin at the top of the cavity. If you don t provide air space this product provides almost no insulating value. The radiant barrier should be installed in a manner to minimize dust accumulation on the reflective surface.

An r 1 1 is provided from the product itself for the reflective double bubble material. Set your store to see local availability add to cart. Reflective insulation systems such as radiant barriers are effective in reducing heat gain on a surface.