Installation Guide

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Large Circular Penetrations – Figures 10 and 11
• Trace the penetrations circumference on a separate piece of MemBrain
™
sheeting.
• Cut a square piece of lm with a minimum 6 inch clearance from the penetration outline.
• Intersect the circle with four diameter lines. (See Figure 10)
• Cut according to these lines towards the circle’s perimeter.
• Place the square patch over the penetration. (See Figure 11)
• Seal the cut edges to the penetration with recommended sheathing tape.
• Seal the square patch to the continuous sheet surface without lm tension using recommended
sheathing tape and lightly press to ensure complete contact.
MemBrain
™
Sheet Tears and Holes
• Cover all tears and holes with recommended sheathing tape.
• Treat large holes (greater than 1 inch) like large penetrations using a square patch.
MemBrain™
Figure 10: Patch preparation.
6 inch
Minimum
Clearance
Figure 11: Patch attachment.
MemBrain™ Sheeting
(Continuous)
Square Patch
Recommended
Sheathing Tape