Exterior Blower Installed On Roof

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Exterior blower installed on roof.

The screws must be long enough to penetrate an adequate depth into the roof framing. Check for and retighten any bolts or screws that may have become loosened. For flat roofs having a pitch less than 1 1 2 of rise per 12 length mount the blower on a roof curb as shown in figure 1. Place the blower against the hole that was cut in the roof or wall.

Using a circular saw cut a hole in the wall or roof where the blower will be mounted. Then turn the blower wheel by hand to make sure that it is able to rotate freely. 2 22 2012 3 57 41 pm. The table below will help you select an exterior blower matched to the heat output of your range hood.

Durable sealed blower housings are crafted from weather resistant aluminum and can be painted to match the roof or wall color scheme. Plywood or osb roof sheathing can be installed over exterior insulation layers using long exterior grade screws. Remote blower install instructions created date. Best exterior blowers are installed at the duct termination point roof or exterior wall providing the greatest distance between the point of use and the blower.

Depending on your preference and ducting situation these blowers can be mounted on the roof or exterior wall of your home. If going through the roof shingles may need to be first cut away with a utility knife. Exterior blowers may be vented through the roof or wall with the goal of minimizing sharp turns in the duct that can impede. Step 2 mount the external blower.

Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof. Make sure you have all of the accessory items and that they are also damage free. Before installing your roof mounted exhaust fan inspect the equipment for any interior or exterior damage. Use the extncb25 blower cable connection accessory for install with select hoods.

Remote blower install instructions author. Use flashing and roofing mastic to. It is not designed to be mounted internally or used as a non ducted motor. Position the blower so that discharge end of the blower slopes downward and away from prevailing winds.

The 332h externally mounted blower is installed on the outside of a home. Rfplt1000p roof plate required for roof mount application separate purchase required. It has to be ducted. An unvented roof cladding substrate e g.

See page 90 for more information on selecting the right blower for your range or cooking style.