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.
How to vent a hip roof attic.
Screw holes through both flanges.
And in many of these cases the hip roof forms a large volumetric attic space to ventilate.
Figure 7 mechanical ventilation used with a hip roof.
For the prevention of dead air pouches cover up the complete ridge using ridge vent.
Try covering the full ridge of the hip roof using cobra exhaust vent.
One of the reasons for installing attic venting is to remove moisture vapor that can condense on roof framing potentially causing rot in cold climates.
They now have solar powered units which provice a cfm rating of 800 cfm.
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.
Of course there should be intake vents to ensure a balanced system.
On a hip roof that lacks enough of a ridge for adequate venting i install roof vents mushroom vents cut high on the roof slopes that aren t likely to be viewed.
One method is to use a powered attic vent with a humidistat thermostat located close to the ridge or top of the roof.
Installation of attic ventilation.
Raise the vent up to the soffit photo by merle henkenius next lay the strip vent down on a flat wood surface such as a plywood sheet or long 2 x 4 and drill 1 8 in dia.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
This will ensure protection against weather finest appearance.