upside down view of bird screen wire mesh on steel roof cap vent prevents birds, small animals entering duct work universal roof

air conditioner backdraft damper bird screen black powder builtin cap clipping path coat finish construction cooling copy space diy applications dryer venting duct work ducting durable entering exhaust fans exterior flue galvanized home house industrial installation isolated white material mesh metal outdoor outside protection range hoods roof top ventilation roofing shingle square steel texture vent vents waterproof weather proof background upside view wire prevents birds small animals universal white