Roof Sheathing Fascia Detail

Whenever possible begin trim installation at the downwind end of the roof farthest away from the source of prevailing winds to al low flashing laps to face away from wind driven rain.

Roof sheathing fascia detail.

That said many older houses or those with exposed rafter tails don t have a rough fascia. This opens the door to the possibility of water damage by letting gravity work against you. Roofing roof sheathing end rafter stops frieze block nailer verge rafter sheathing w siding common rafter abbreviated rake. The pitch of the roof also affects the height of the sub fascia.

Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Nail thefurring strip to the fascia board near the fascia top tight under any extending of roof decking usually absent. Include roof pitch roof geometry slope length and climatic factors such as heavy snowfall or rainfall. This membrane should be run with the width of the material centered along the length of the valley.

The sub fascia or rough fascia is part of the framing. It supports the roof sheathing at the eaves and provides backing for the gutters. All valleys regardless of type should be lined with a minimum 36 inch wide peel and stick membrane. Refer to the details.

Then the thinner fascia is attached to the sub fascia. Then the roof sheathing gets attached and extends over the sub fascia. When sheathing a roof the first step is to snap a line so that the first row goes on straight. Before the roof sheathing goes on the open framing provides easy access for attaching the return blocking and the nailers for the rake soffit.

The peel and stick needs to be installed directly to the roof sheathing before a roofing underlayment is installed. Much of this aesthetic is made moot by a gutter which hides much of the fascia detail including that wide 1. The last pieces to go in were nailing blocks above the ledger for the back of the return and at the bottom edge of the soffit for attaching the rake 20.