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.

Extend the blade all the way out to provide a long sharp edge that perfect for cutting through thick insulation. Batt insulation is commonly made of spongy fiberglass or glass wool. 2 clamp the fiberglass sheet to a. Hot metal chips will fly everywhere.

Leave an extra 1 2 in. You can cut mild steel up to about 3 8 in. Fiberglass is hard and will quickly dull any wood cutting blade. It can be cut with any saw using a fine blade although carbide is best.

Thick using a ferrous metal cutting blade. Mark the start and end point of your cut with a water soluble marker. 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. Cutting fiberglass panels isn t difficult but keeping them from splintering chipping or throwing harmful fibers is.

Tip for cutting fiberglass insulation easily. Cutting batts of fiberglass insulation takes forever because the batts are so thick and fuzzy. You can use a jigsaw to cut the fiberglass paneling if you use a blade made for cutting metal. 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.

Draw a straight line between these points using a yardstick as a straight edge if necessary. A trimmer is lightweight and powerful and it easily cuts through hard fiberglass such as that used in paneling. So this completely depends on tools you choose. Plus you can choose between 3 4 and 5 inch trimmers.

Then cut a 2x4 at least 12 inches longer than the width of the insulation. We re using unfaced batts that are sized to friction fit into standard stud spaces either 16 in. Folding or tucking pieces too tightly between openings compromises its r value or thermal. Of length for a tighter fit.

Tips for cutting batt insulation. The thing to avoid is vibration it is a brittle material so support it from below and keep your saw tight to the material. Frp is a commonly use covering in commercial food prep and for restrooms as it is imune to most all cleaners and disinfectants. To cut thick batts or rolls of fiberglass insulation easily use an extendable utility knife that has snap off blades.