How Long Do Plastic Roof Vents Last

When it comes to roofing even galvanized aluminum vents are prone to rust and leaks.

How long do plastic roof vents last.

The building codes and building science for. During maintenance you ll want to be assured the top of the vent is kept open. All roof vents should also be equipped with large flanges or flashing to ensure a watertight seal. The sealants degrade over time due to sun damage drying and cracking expanding and contracting and body flex from road travel.

Does anyone else have this prob or is it a waste of money just go with. Whats everyones opinion on plastic vents. Roof vents tv antennas transition molding on the roof radio antennas and sky lights are just a few examples of the various items that need to be maintained. The roof vent pipe is installed cut through the roof and around the pipe attached to the roof is surrounded with rubber boot as insulation for the gap between the pipe and roof.

In the 2003 canberra bushfires aluminium whirlybirds were sucked out of roofs like a piece of tissue paper how long do you think plastic roof ventilators would last in these conditions before they go up in a puff of smoke followed by your home. I ll bet you think you asked a. There are many possible parts of the roof potentially leaking but one of the most common ones is the area around the roof vent. The plastic pipe is flashed or sealed at the roof penetration to prevent rainwater from leaking into the building.

We see heavy snowfall and cold temps. It is important to choose the right roof vent to assure proper attic ventilation. The idea of roof vents existed for hundreds of years with natural vents employed in chinese buildings during the tang dynasty natural ventilation ducts in the buddhist monks caves and wind catchers incorporated in arabian architecture. I see plastic attic air vents broken all the time.

Famco plastic vents fa50 bvds are made from high density polyethylene hdp. Famco manufactures a wide variety of roof vents in plastic bvds fa50 and metal bk jv jvo gbv lrv. On the other hand i want this next roof to last as long as possible and if these vents are better for the roof and the shingles then i would want them installed. See the white pipe on the roof at left.

Any jobs i do on the side i always get the home owner to buy metal especially on a 30 or 40 year shingle. Company i work for and every other company in the city puts plastic vents on everything. Hdp is one of the most versatile and widely used plastics. Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals.

A blocked vent can be caused by leaves dead animals and ice dams in very cold. The best plastic roof jacks are designed without seams that can allow water penetration and don t use rivets that promote unsightly and harmful rust.