How To Properly Install Roof Hvac

Place the first screw about 7 inches from the bottom and each subsequent screw about 18 to 24 inches apart along the vertical run.

How to properly install roof hvac.

Arrange the shingles so the ends and the tab notches do not lie directly above gaps in the shingle below. Place a line of roofing tar or caulk on top of the vent s flange or its bottom flap using a caulk gun. It s common to place the heating ventilating and air conditioning hvac systems for large buildings on the roof. Likewise it may not be advisable or possible to set the rooftop hvac unit directly on the roof especially if the building has a membrane roofing system.

A successful rooftop hvac installation usually involves the collaboration of an entire team of workers so that issues related to the roof structures electrical and hvac can be discussed beforehand. Cover the entire flange with shingles to integrate it better into the roof. Press new shingles onto the caulk and use nails at the top of each shingle to fully secure them to the roof. Install the roofing screws vertically along each rib in the panel.

Glue down shingles to cover the bottom of the vent. Secure the screws but do not overtighten. From inside the attic your roofing professional will drive a nail about one third of the way down from the ridge between two rafters to mark the desired spot for installation. Install shingles from the lower left corner working to the right and also working up the roof slope.

The washer under the screw head should seal to the surface of the panel without bulging or shifting.