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150 Round Vent

150 Round Vent

With 150 square inches of Net Free Venting Area, the 150 Round Vent is ideal for larger roofs. It requires only a third of the roof penetrations of typical 50 NFVA vents, saving time and money. Made of high-impact polypropylene with heat stabilizers and UV inhibitors throughout, it will not rust or dent.

Benefits

The 150 Round Vent is suitable for any pitch from 2/12 to 16/12. Available in black, brown, and weatherwood, it can complement any of today’s shingle color choices. The 150 Round Vent helps attics breathe to keep cool and dry, reducing utility costs, preventing mold and mildew, extending shingle and roof-deck life, reducing air conditioning maintenance costs, and eliminating damaging ice dams in winter months.

Net Free Venting Area: 150 square inches per piece
Dimensions: 26″ W x 26″ L x 6.97” H
Material: No-break polypropylene
Codes & Standards: TDI, FL Building Code, CSA
Passed: Florida TAS 100 (A) Wind & Water 110 mph
Colors: Black, Brown, Weatherwood
Roof Pitch: Conforms to any pitch from 2/12 to 12/12
Patents: US Pat No. 7,544,124, US Pat No. 7,780,510, US Pat No. 10,415,252
Vent Weight: 4.34 lbs. per piece
Pack Unit of Measurement: 1 per carton
Construction Detail: Heat stabilizers and UV inhibitors throughout
Durability: Will not dent or rust, UL 2218: Class 4 Impact (hail) Resistant

How To Install

The 150 Round Vent has no sharp edges, making it safer to handle and install. It’s virtually indestructible, with no bending of the flange or denting of the dome, and it requires a simple square cutout.

Related Products

Related Products

Python Rolled Ridge Vent

Our recycled plastic, single-layer ridge vent can be used under shingle ridge caps to keep attics cooler and dryer in all seasons.

3-in-1 FlexFit Vent

The most innovative, field-adjustable ridge vent on the market converts from 12″ to 10″ or 9″ ridge vent size by simply scoring the groove on the top of the vent.

Weather-Tite 3-in-1 FlexFit Vent

All the advantages of our FlexFit™ 3-in-1 Ridge Vent plus a non-clogging weather barrier to provide a superior Net Free Venting Area while blocking out moisture, pests, and dust.
Additional Resources

ADDITIONAL RESOURCES​​

VENTILATION CALCULATOR​​

Calculate the exact amount of ventilation needed for a well-balanced system.

TECHNICAL TOOLS​​

Dive deep into product sheets, diagrams, and full spec breakdowns. 

Roofing FAQ

Learn everything you need to know about ventilation.

Marco Industries