Proper Roofing Ventilation

How to install roof vents.

Proper roofing ventilation.

Exhaust vents ridge vents openings that run the entire length of your roof along the ridge are often visible only to a trained eye. Without proper roof ventilation a whole host of problems can crop up costing you money and damaging your home. 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. If it does you ll have to decide what type of vents will work best and how to properly install them.

You can also contact your local municipality to check on building code in your area. 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. 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. These ventilation needs are calculated differently.

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. Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all. Here are the top reasons why you need ventilation in your roof. Finally unlike the rest of these models.

Static vents often protrude from roofline thanks to special covers intended to keep all precipitation rain sleet hail. Cut the hole for roof vents. Center nails between rafters 18 in. Gable vents may circulate air through only a small percentage of your attic.

Cut the shingles for roof vents. The key to proper ventilation of your roof and attic is balance. Mark attic roof air vent locations. The option you choose will be contingent on factors such as the type of roof you re working with and the local climate.

Why is ventilation so important. Ventilation is critical for your home and that s especially true for your roof. You ll first need to consider whether or not your house s roof needs ventilation. There are some styles of vaulted ceiling homes or flat roof homes that have ventilation spaces within the roof itself and no attic.

Drive nails up through the sheathing and. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. Most building codes require a ratio of 1 150 ventilation space to attic floor space. From the roof s peak.