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Exhaust Caps
Please note that the following list is but a sample of the Exhaust Cap configurations that Shade Tree Mfg. LLC produces. Specifications are subject to change. Call or e-mail us and we will be happy to supply you with our most recent product catalog and answer any questions you may have.
All Exhaust Cap products are made of the highest quality materials and construction to ensure longevity in their intended venting application.

The Rain Cap is best suited for low-velocity or intake applications where a backdraft is not a concern. The conical top is sized and spaced to prevent precipitation from entering the vent opening while maximizing airflow.

The Weather Cap is ideally suited for medium to high velocity exhaust applications where airflow restriction is a concern as well as backdraft. The butterfly damper opens quickly and easily with the onset of airflow and closes again to block precipitation when not in use.

The Velocity Stack is recommended for high velocity exhaust applications where airflow restriction is a primary concern. The outer shell is sized so to be able to collect precipitation and direct it away from the vent opening without blocking the airway.


Rain Caps

All Rain Caps are manufactured according to standard industry specifications (SMACNA). Cap diameter is standard 2x pipe diameter with 1/2 pipe diameter vent spacing and angle-reinforced legs.

Caps are available with divertor or bird-screen on request.

Caps are available male-slip fit standard or angle iron ring / flanged connection by request.

Weather Caps

All Weather Caps are manufactured according to standard industry specifications with standard gravity-closure butterfly damper and rain shell.

Caps are available male-slip fit standard or angle iron ring / flanged connection by request.

Velocity Stacks

All Velocity Stacks are manufactured according to standard industry specifications with regard to Outer Shell diameter, overlap, and assembly.

Caps are available pipe fit standard or angle iron ring / flanged connection by request.