http://www.savevid.com/tag/exhaust-vents Download exhaust vents videos on savevid.com. Mon, 20 May 13 23:57:48 +0800 http://www.savevid.com/video/ridge-vent-class-a-fire-resistance-testing.html http://www.savevid.com/video/ridge-vent-class-a-fire-resistance-testing.html Source: www.airvent.com. This segment highlights footage of Class A rated 7-inch wide and 9-inch wide ShingleVent II ridge vent passing ULs most stringent fire resistance testing: Spread of Flame and Burning Brand. Class A is a requirement in areas where...]]> http://www.savevid.com/video/why-homes-need-attic-ventilation.html http://www.savevid.com/video/why-homes-need-attic-ventilation.html Source: www.airvent.com. Used by roofing professionals for in-home presentations this explains how balanced attic ventilation works and why it's necessary for today's more airtight homes.]]>