Proper Hip Roof Venting

Prior to installing the ridge vent a 1 inch wide strip of roof decking is cut out along both sides of the ridgeline to allow for air movement through the vent.

Proper hip roof venting.

The leaving of this 6 defends the structure against wind propelled rains. Leave uncut sheathing of a 6 at gable ends. Touch your ceiling on a warm sunny day. A hot ceiling tells you that the attic is acting like a solar oven raising your cooling bills and.

One contractor is recommending 2 attic fans and a ridge vent one is recommending 1 attic fan and a ridge vent and one is recommending 1 attic fan and 2 box vents. Install additional soffit intakes keeping existing intakes clean the screens and run an attic fan that s cfm rated higher than necessary to make sure. At the time of the installation of exhaust vents ensure that you are aware of whether the hip roof features ridge boards not. Choose one of the following products to meet the recommended exhaust nfva of 528 square inches.

It is important that air movement occurs and is not impeded by any framing members of the home. For best performance the airspace in the vent chute should be a minimum of 2 in. What is the optimal ventilation for a hip roof we have a hip roof in need of replacement and there is discrepancy in the ventilation suggestions. Calculate 20 per cent more for 7 12 to 10 12 pitches and 30 per cent more for a pitch that is 11 12 or greater.

One method is to use a powered attic vent with a humidistat thermostat located close to the ridge or top of the roof. Hip and ridge shingles starter shingles low slope products ice and water barrier synthetic underlayment intake ventilation exhaust ventilation titanium and rhinoroof. Asphalt roofing and nrca. And in many of these cases the hip roof forms a large volumetric attic space to ventilate.

Look at your eaves and roof. Unless you re bulk filling rafter bays between 2 10 or 2 8 rafters with closed cell spray foam this approach will likely require you to fur out the rafters to accommodate additional insulation to achieve desired r values. A frequent problem with hip roofs is that the ridge is either short or doesn t really exist. Ventsure 4 foot strip heat moisture ridge vent.

A ridge vent is a ventilation strip that is placed along the ridgeline of the home. If the slope of your roof is greater than 6 12 you will need more ventilation to reflect the extra volume of attic space.