How Do You Vent A Hip Roof

Depending on the size of the roof most hip roofs will have 4 6 short jack rafters that are spaced out every 20 inches 51 cm between the hip rafters and the king common rafters.

How do you vent 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. This will ensure protection against weather finest appearance. Of airspace between the top of the insulation and the back of the roof sheathing.

Lots of builders out here vent hips by cutting notches in the top corners of the rafters and thereby making a plenum along the hip which carries air flow to vents at the ridge or mushrooms higher up. For best performance the airspace in the vent chute should be a minimum of 2 in. If you choose to vent the roof deck then be serious about it and really vent it. The code calls for a minimum of 1 in.

Another way to achieve the proper amount of air flowage instead of using the 10 feet of ridge vent would be to use only a powered attic ventilator fan on the roof top but definitely not using any additional roof top exhaust vents. They now have solar powered units which provice a cfm rating of 800 cfm. Installation of attic ventilation. Enter square footage calculate or enter the square footage of the attic or area to be vented.

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. Nail the jack rafters to the hip rafters and secure them to the walls.