What Is The Best Way To Cut Insulation Sheets

Lift the foam insulation board so that the sheet is sitting upright.

What is the best way to cut insulation sheets.

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. 0 75 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 304087 model 100000050511. However you can also use a utility knife to score the rigid insulation and then snap it over an edge.

Extend the blade all the way out to provide a long sharp edge that perfect for cutting through thick insulation. To give yourself a clean sheet to work with pull out frayed strands until one of them remains unbroken from the left side of the sheet to the right. Then cut your insulation panels to fit between the furring strips. How to cut foam insulation sheets.

Kingspan insulation r 4 common. Standard panels are 4 by 8 feet and can be used to insulate a home s roof. But you may have an uneven cut with rough edges. 0 75 in x 4 ft x 8 ft.

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. Step 4 complete the cut. If your fiberglass has been cut previously the bottom edge will have some light fraying on it. Use 2 2 inch lumber for the studs and 2 3 inch lumber for the top and bottom plates.

Cutting batts of fiberglass insulation takes forever because the batts are so thick and fuzzy. The best way to cleanly cut rigid insulation is to use a circular saw. Pull out fabric strands along the cutting edge until one lasts the length of the sheet. Insulation sheets typically consist of foam beads compressed into rectangular panels.

Secondly and this is the best way you can install a drywall to frame the wall before applying foam board insulation.