Refinishing Attic Roof Vents

The idea of roof vents existed for hundreds of years with natural vents employed in chinese buildings during the tang dynasty natural ventilation ducts in the buddhist monks caves and wind catchers incorporated in arabian architecture.

Refinishing attic roof vents. Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation. Walk carefully on the ceiling joists in the attic or use a sheet of plywood to walk on so you will not accidentally put a hole in the ceiling panel. These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and automatically exhausts the attic space. In other instances you need to attach mesh screen that has smaller.

For the best results place roof ventilation near the roof s peak and soffit vents in the eaves. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Air flows in through the soffit vents and out through the roof vents. Fans and vents may be installed on the roof system that will draw the air out of the attic space and exhaust it to the exterior.

That said air resistance and interference such as vent grates reduces the area of true ventilation. In other words the entire vent opening doesn t count as vented space. Attic and roof vents that are clean allow air to flow through the attic and similarly attic fans help attic circulation keeping your attic dry your air fresh and your home cool in the summer heat. Make the final repair as soon as weather permits.

Installing a roof vent costs between 300 and 650 on average including labor and materials. If you re finishing your attic insulating it to the proper r value can cause a dramatic loss of headroom if you limit yourself to fiberglass batts. Whole house fans powered attic fans. To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes.

Exact rates depend on the type size and number of units you choose to install. The building codes and building science for. If you see dampness or frost you need better roof ventilation and some attic vents. Repairing a roof leak from the inside is a temporary fix only.

Roof vents come in a variety of styles and range from 10 to 500 each. Ridge vents cost 2 to 3 per linear foot. Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals. Grab a flashlight and inspect your attic during the winter.