Best Way To Cut Thin Sheets Of Fiberglass Batts

Use a board to compact the insulation and provide a straight edge for cutting.

Best way to cut thin sheets of fiberglass batts. You can cut mild steel up to about 3 8 in. Frp is a commonly use covering in commercial food prep and for restrooms as it is imune to most all cleaners and disinfectants. Tip for cutting fiberglass insulation easily. Without any delay lets look at the ways to cut fiberglass panels.

Thick using a ferrous metal cutting blade. To cut thick batts or rolls of fiberglass insulation easily use an extendable utility knife that has snap off blades. It can be cut with any saw using a fine blade although carbide is best. Cut batts to length by setting the top of the batt into the space and cutting against the bottom plate with a sharp utility knife.

Mark the start and end point of your cut with a water soluble marker. Batt insulation is commonly made of spongy fiberglass or glass wool. Plus you can choose between 3 4 and 5 inch trimmers. Tips for cutting batt insulation.

2 clamp the fiberglass sheet to a. Folding or tucking pieces too tightly between openings compromises its r value or thermal. Draw a straight line between these points using a yardstick as a straight edge if necessary. So this completely depends on tools you choose.

We re using unfaced batts that are sized to friction fit into standard stud spaces either 16 in. Of length for a tighter fit. Hot metal chips will fly everywhere. In our test it cut through rebar like a hot knife through butter.

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. Leave an extra 1 2 in. Fiberglass is hard and will quickly dull any wood cutting blade. You can use a jigsaw to cut the fiberglass paneling if you use a blade made for cutting metal.

The thing to avoid is vibration it is a brittle material so support it from below and keep your saw tight to the material. Cutting fiberglass panels isn t difficult but keeping them from splintering chipping or throwing harmful fibers is. A trimmer is lightweight and powerful and it easily cuts through hard fiberglass such as that used in paneling. Cutting batts of fiberglass insulation takes forever because the batts are so thick and fuzzy.