Roof Mounted Exhaust Fan Installation

Learn how easy it is to install an attic fan.

Roof mounted exhaust fan installation.

This way you don t have to cut a brand new hole but simply make the hole for the vent larger so it can accommodate the fan. Get the trade secrets from the jet fan man who has installed around 13 000 attic fans since 1983. This can add 4 8 for caulking 4 material. On average labor costs run between 100 300 and the fan itself may range from as little as 50 to more than 500.

We like master flow s model for its easy installation and efficiency. Check for and retighten any bolts or screws that may have become loosened. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling.

If you have access to the attic the fan can vent either through a gable wall or roof. Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems. Before installing your roof mounted exhaust fan inspect the equipment for any interior or exterior damage. They are typically easier to install and won t detract from the appearance of your roof.

Avoid venting through a soffit vent or ridge vent. Designed for attic spaces up to 2 088 square feet master flow s unit can remove a large volume of hot air at a rate of 1 500 cfm. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. To save time use an existing roof or gable vent to install your new attic fan.

This has an added cost of around 50 for the shingles 3. Pricing for attic fan installation varies depending on fan type and its location. Installing a gable fan will also require caulk 4 to seal it in place. Whole house fans tend to have higher overall costs than attic ventilation fans.

The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent. This roof mounted e. Duct already wrapped in insulation at home centers. Roof mounted attic fans require a vent hold near the top of the roof where the fan can sit over the vent on a plastic or metal base.

You can find 4 in. Installing a roof mounted vent will require ridge cap shingles 3 to be installed over it. Make sure you have all of the accessory items and that they are also damage free.