Proper Roofing Ventilation

You can also contact your local municipality to check on building code in your area.

Proper roofing ventilation.

There are some styles of vaulted ceiling homes or flat roof homes that have ventilation spaces within the roof itself and no attic. Gable vents may circulate air through only a small percentage of your attic. Most building codes require a ratio of 1 150 ventilation space to attic floor space. Center nails between rafters 18 in.

Here are the top reasons why you need ventilation in your roof. The key to proper ventilation of your roof and attic is balance. 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. 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.

Finally unlike the rest of these models. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. Ventilation is critical for your home and that s especially true for your roof. The amount of space you devote to intake must be equal to the amount you allow for exhaust and these must be calculated according to the size of your attic and slope of your roof.

From the roof s peak. 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. Without proper roof ventilation a whole host of problems can crop up costing you money and damaging your home. The option you choose will be contingent on factors such as the type of roof you re working with and the local climate.

Cut the hole for roof vents. How to install roof vents. Cut the shingles for roof vents. If it does you ll have to decide what type of vents will work best and how to properly install them.

Mark attic roof air vent locations. Proper ventilation necessitates that fresh air is able to find its way in the attic space while allowing stale air to get out. Exhaust vents ridge vents openings that run the entire length of your roof along the ridge are often visible only to a trained eye. Why is ventilation so important.

You ll first need to consider whether or not your house s roof needs ventilation. Drive nails up through the sheathing and. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. 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.