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Cut out insulation

Mineral wool rolls and insulation boards usually need to be cut before being laid. But cutters dull too quickly and force to force a lot, manual saws tend to break the insulation, and power saws are losing their precision.
To cut the semi-rigid insulation, opt for a simple bread knife. Its length and large teeth are ideal for making a clean cut. For plates, use a ruler or a cleat.


Video Instruction: Cut Fiberglass Insulation Fast Easy Way DIY