When using glass wool rolls, pay attention to the tightness of the joints, tension, and alignment. When overlapping longitudinally, the joints must be at the rafter. Also, operate according to the project requirements to avoid cold bridge phenomena.

2. For glass wool rolls facing inward, they must be installed perpendicular to the rafter. Leave an extra 20cm of the roll at the eaves and secure it to the exterior rafter with double-sided tape.

3. During unwinding, ensure the glass wool rolls are aligned and tensioned properly. When connecting two rolls of cotton, use a stapler to staple the edge strips of the boards together. When removing the clamps at both eaves, control the force to prevent damaging the glass wool rolls.