Hip Roof Soffit Ventilation

Videos cobra hip vent provides effective ventilation on hip roofs with little or no ridge area.

Hip roof soffit ventilation.

Figure courtesy of the nrca. You could require compensating with additional exhaust. An attic room of 1 200 sq. Venting hip roofs realizing the potential of roof venting in warm climates is really limited to cooling the attic air space and does little to remove moisture or lower roof deck temperatures.

Figure 7 mechanical ventilation used with a hip roof. You can purchase different colored metal vents that act as the cap shingles at the top of the roof. 218 4 pieces 389 3 pieces 829 2 pieces. It provides 9 sq.

If you have a hip roof be sure you install a special vent on these areas of your house. Using your numbers of 42x26 300 then divided by 2 1 82 sqft 144 262 sq inches exhaust ventilation. A hipped roof with an attic can be vented the same way a trussed gable roof is most typically done with soffit vents and near the peak sufficient roof vents for the area of the attic. Another option is to install hip ridge vents along the ridge lines of a hip roof.

Choose one of the. Grab a flashlight and inspect your attic during the winter. Hip vents are special because they need to have internal baffles that block snow and rain that can blow sideways across a roof. Not too long ago this practice was not recommended because traditional ridge vent products were used and they were rather prone to weather infiltration.

Vents come in various styles. You would only need 15 foot. Air flows in through the soffit vents and out through the roof vents. Many of these homes had hip roofs and are considered high end homes built about 8 10 years ago.

All the homes with hip roofs had soffit intakes and static roof vents. A number of problems that could come up when trying for the ventilation of hip roofs is able to be that there s possibly not sufficient exhaust ventilation. It appears you can get real close to achieving the proper exhaust ventilation with the ridge you have for the upper roof. For the best results place roof ventilation near the roof s peak and soffit vents in the eaves.

The problems with venting of hipped roofs are confined to those with cathedral ceilings below. I would recommend that you install the soffit vents around the entire perimeter to achieve the most air exchange you can. Inches per linear foot 19 051 mm 2 lm of net free ventilating area to help exhaust heat and moisture from the attic. Other vent products are coils of plastic fabric that resembles coarse steel wool.

One type of shingle over ridge vent provides 18 sq inches per foot. None of them had power attic fans. The ridge and hip vents come in all flavors. Foot requires cobra exhaust vent structure of 17.