Roof Flashing Detail Connections

The detail shows the method of flashing the head of a standing seam shed roof.

Roof flashing detail connections.

This will keep weather out prevent lifting in high winds and provide a neat finished appearance. Vent pipe flashing fits over flues or pipes. This article illustrates and discusses alternate or rather goofy attempts at roof wall intersection flashing to prevent leaks water damage and points out where leak risks may remain. The lower edge is hemmed for stiffness.

This detail illustrates a method of flashing a ventilator on a sloped roof. Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies. Open valleys have metal flashing to protect this critical area of the roof. Copper locking strips of the same weight as the flashing are soldered to the pans between seams at least 6 from the wall and engage the base flashing in a 3 4 lock.

The standing seams are laid flat 8 from the vertical wall folded 3 4 and secured with copper cleats spaced 12 o c. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. In our page top photo my grandson tanner gilligan points out the white caulk that was installed as a stopgap. Custom flashings to your requirements ask your local service centre for details.

Roof wall flashing detail specifications snafus. Large flashings are formed with a hook edge on the top and sides and cleated to the sheathing at 12 o c. Step flashing fits to each course of shingles and appears to step up the wall of the chimney. The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge.

While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. Roof flashing large roof penetration 8 small roof penetration 8 change of pitch 8 mansard 9 expansion joint 10 ridge capping 10 raked roof 11 box gutter 11 barge gutter 12 barge capping 12 curved barge 12 parapet top 13 parapet to sheet connection 13 wall flashing mid wall connections 14 internal corner trim 15 internal corner. The base flashing extends onto the roof a minimum of 4 and is soldered to the ventilator. Step flashing protects the joints between the roof deck and chimneys or dormers.

Individual connections and connections within full scale roof systems were tested to quantify potential system effects. To provide a drip edge allow an overhang of 1 to 2 inches at the eave. At the gable edge use a gable or sidewall flashing. Hand driven and pneumatic fasteners were included in the test program.