Proper Hip Roof Venting
Look at your eaves and roof.
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. Leave uncut sheathing of a 6 at gable ends. A hot ceiling tells you that the attic is acting like a solar oven raising your cooling bills and. Choose one of the following products to meet the recommended exhaust nfva of 528 square inches.
The leaving of this 6 defends the structure against wind propelled rains. Ventsure 4 foot strip heat moisture ridge vent. It is important that air movement occurs and is not impeded by any framing members of the home. Touch your ceiling on a warm sunny day.
Your roof vents may not look. A ridge vent is a ventilation strip that is placed along the ridgeline of the home. At the time of the installation of exhaust vents ensure that you are aware of whether the hip roof features ridge boards not. A frequent problem with hip roofs is that the ridge is either short or doesn t really exist.
Hip and ridge shingles starter shingles low slope products ice and water barrier synthetic underlayment intake ventilation exhaust ventilation titanium and rhinoroof. If you don t see any attic vents on the roof or in the eaves you need to add some. Attic ventilation hip roof how to ventilation hip roof. One method is to use a powered attic vent with a humidistat thermostat located close to the ridge or top of the roof.
And in many of these cases the hip roof forms a large volumetric attic space to ventilate. 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. 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. 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.
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. 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.