What Is The Best Way To Cut Insulation Sheets

To speed up the process and produce a clean neat cut every time lay the insulation on top of a scrap piece of plywood with its foil or kraft paper vapor barrier facing up.

What is the best way to cut insulation sheets.

Extend the blade all the way out to provide a long sharp edge that perfect for cutting through thick insulation. If your fiberglass has been cut previously the bottom edge will have some light fraying on it. However you can also use a utility knife to score the rigid insulation and then snap it over an edge. Then cut a 2x4 at least 12 inches longer than the width of the insulation.

The best way to cleanly cut rigid insulation is to use a circular saw. Lift the foam insulation board so that the sheet is sitting upright. Step 4 complete the cut. To cut thick batts or rolls of fiberglass insulation easily use an extendable utility knife that has snap off blades.

Then snap along the scored cut by pressing hard against the backside of the score etching line while securely holding the side edges of the board. Pull out fabric strands along the cutting edge until one lasts the length of the sheet. Cutting batts of fiberglass insulation takes forever because the batts are so thick and fuzzy. Standard panels are 4 by 8 feet and can be used to insulate a home s roof.

0 75 in x 4 ft x 8 ft. But you may have an uneven cut with rough edges. Secondly and this is the best way you can install a drywall to frame the wall before applying foam board insulation. 0 75 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 304087 model 100000050511.

Insulation sheets typically consist of foam beads compressed into rectangular panels. Kingspan insulation r 4 common. The blade will give you the most precise cut. Then cut your insulation panels to fit between the furring strips.

If you have properly scored the foam board it should simply pop or snap off.