Proper Roofing Ventilation

Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof.

Proper roofing ventilation.

These ventilation needs are calculated differently. The option you choose will be contingent on factors such as the type of roof you re working with and the local climate. Gable vents may circulate air through only a small percentage of your attic. Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all.

From the roof s peak. Proper ventilation necessitates that fresh air is able to find its way in the attic space while allowing stale air to get out. If it does you ll have to decide what type of vents will work best and how to properly install them. Center nails between rafters 18 in.

The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. You ll first need to consider whether or not your house s roof needs ventilation. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. Why is ventilation so important.

Without proper roof ventilation a whole host of problems can crop up costing you money and damaging your home. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Cut the shingles for roof vents. This is accomplished through the placement of ventilation near the bottom of the attic space at the soffits or eaves intake and at the top peak s or ridge s of your attic space exhaust.

How to install roof vents. Finally unlike the rest of these models. You can also contact your local municipality to check on building code in your area. Static vents often protrude from roofline thanks to special covers intended to keep all precipitation rain sleet hail.

Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. Drive nails up through the sheathing and. Cut the hole for roof vents. There are some styles of vaulted ceiling homes or flat roof homes that have ventilation spaces within the roof itself and no attic.

Most building codes require a ratio of 1 150 ventilation space to attic floor space. Ventilation is critical for your home and that s especially true for your roof. Exhaust vents ridge vents openings that run the entire length of your roof along the ridge are often visible only to a trained eye. Here are the top reasons why you need ventilation in your roof.