Cover the rake edge

Cover the rake edge
FAMILY HANDYMAN

After all the panels are fastened, it’s time to attach the gable trim. This cleans up the edge of the panel and keeps rain from getting under the roof panels and siding.

After you bend the end of the trim to meet the corner at the eave, apply butyl tape on the underside of the trim where it lands on the flat part of the roof panels. Press it in place and drive screws every 30cm right over the butyl tape.

Learn how to install gutters.

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Secure the ridge cap

Secure the ridge cap
FAMILY HANDYMAN

To cap the roof, adhere a line of outside closure strips with butyl tape 10cm from the top of the peak; this is where you’ll fasten the ridge cap to the roof with screws. Apply a bead of sealant on the foam closure, then fit the ridge cap on the peak and fasten with 50mm screws to the roof deck through every rib.

With the cap of the roof complete, all the water that lands on the roof will exit the roof without ever touching the underlayment.

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Source: Family Handyman