This Old House Attic Fan Installation

Set the blocks slightly farther apart than the.

This old house attic fan installation.

Cut two pieces of 2x10 to fit snugly between the ceiling joists. Steps for installing a whole house fan. From inside the attic take up any plywood floor covering the desired fan location. Install roof brackets and fall arrest system to roof.

If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the manufacturer s warranty. This active ventilation system is inexpensive and easy to install. Your actual living space is sealed and insulated at the attic floor the attic is outside this envelope. Whether using loose fill or batts put the vapor barrier closest to the warm side of your installation where hot moist air would get in facing the house s interior in cold climates beneath floor insulation and the attic s interior in hot climates on top of floor insulation.

An attic fan will turn on automatically when the attic reaches a preset temperature. When running they pull heat and moisture from inside of the house and. In this video this old house electrical contractor john barros shows how to swap a light fixture for a ceiling fan. In this video this old house general contractor tom silva explains how to keep your attic cool with a fan activated by the sun.

The fan is typically mounted behind a gable end vent but other types are available that exhaust hot air through a roof vent. One way to minimize this problem is to install an attic fan. Drive nail through center of vent location. Whole house fans are installed into the ceiling of the highest point in the finished space typically in an upstairs hallway.

In attic mark location of solar powered vent between two roof rafters.