How To Install Blanket Flat Roof Insulation

Blanket insulation can cause roof leaks under flat metal roofs most new metal roofs now have a layer of blanket insulation installer underneath.

How to install blanket flat roof insulation.

Use a straight edge and use an utility knife to cut the material. Installing flat roof insulation can be a bit challenging. The insulation material usually comes in rolls and you will need to cut strips to fit the spaces in the ceiling. Then use the remnants to fill in the smaller spaces.

Then install r 30 fiberglass batts between the rafters. This shows you a guide to installing an insulation blanket watch this and other related films here. If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top. However with the proper tools any do it yourselfer can complete the job.

Framing this out and buying 30 r fiberglass insulation will cost you about 50 more than just buying 5 inches of polyiso equivalent of 30 r. It is a nice handy way to insulate the roof cavity and also cut down on a bit of rain noise. Put the long runs in place first. Colorbond flat roof video presentation by rainshield roofing.

It should be installed on tapered 2x furring strips in order to slope the surface of the roof to drains. Place the insulation between the joists with a bit of pressure. Depending on the height of your ceiling you may need to use a step ladder to place the insulation. Place the strips and then fill the little spaces that will surely remain.

Fortunately they can all be found at your local home improvement store.