Best Way To Cut Fiberglass Insulation

Select a sharp utility knife with a 3 to 4 in 7 6 to 10 2 cm blade.

Best way to cut fiberglass insulation. While fiberglass insulation is usually cut with a utility knife as demonstrated in our cutting insulation video one of our viewers came up with a novel idea which worked great and gets the job done in a hurry. Move your ruler or t square to the line of fabric you want to cut. Use a board to compact the insulation and provide a straight edge for cutting. Watch this video to find out more.

Cut fiberglass insulation with a safer knife of course this is a slice post after all. Usually made of fiberglass with a kraft paper backing rolled insulation is simple to cut with a sharp utility knife. Place the insulation on a scrap piece of plywood. Use shears or an x acto knife to cut the fiberglass.

Why cutting fiberglass is hazardous as the name of the material implies fiberglass insulation contains thin glass fibers. Keep the cut lines as straight as possible so they can butt together snugly on. Using a utility knife. To cut thick batts or rolls of fiberglass insulation easily use an extendable utility knife that has snap off blades.

Select a piece of plywood that is. We ll get to that but first let s look at all the risks associated with this activity and how to mitigate them.