Felt Flat Roof Drip Edge Detail

When installing anything on a roof you need to follow the water rule the water rule means you consider where water will run when it s on the roof.

Felt flat roof drip edge detail.

If you install the drip edge on top of the felt any condensation or water running down the roof surface between shingles and felt will run underneath the drip edge. In all cases it is important to properly detail and install the edge conditions. Consult firestone s technical department for assistance when. Always try to carry membrane felts over or up and over and down to ensure the roof membrane will always drain free and clear of any adjacent system.

Gently lift up the shingles on the edge of the roof and locate the nails holding the existing drip edge onto the roof. Our photo illustrates several details of roof drip edge eaves flashing and gable end flashing at an asphalt shingle re roof job we documented in dutchess county new york. The reason why drip edge should be installed below the underlayment along the eaves of the roof is so that water does not get under the drip edge. Membrane recommendations for these roof systems for various slopes.

Flat roof edge trims make sure that moisture doesn t seep into the felt and cause condensation or damp issues. To form the welted drip see edge detail below cut suitable lengths check but usually about 350mm 14 inch of top sheet nail each length to the timber batten along the edge of the roof with the felt underside facing out and with the sheet hanging down ensure that the clean area along the edge of the top sheet line up with the edge of. If you re looking for premium quality industry standard cost effective edging our unique line of products will give your flat roof a smart professional look while preventing damp and condensation from infiltrating your roof. Find everything you need to give your flat roof a visually pleasing finish with our full range of roof edge trims.

Fixed using screws sealant or nails you can purchase fibreglass trims fabricated metal trims and felt profiles so you pick the roof edge trim most suited for your flat roofing project. Once free slide the drip edge out and discard. Install the new drip edge as described above with. Grp felt drip edge trim 90mm leg 50mm face.

The standard roof edge details illustrated in this section are generally applicable.