How Do They Put In A Roof Hip Vent

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.

How do they put in a roof hip vent.

On some hip roof designs the length of ridge is very short compared with the total roof length. Putting them at mid roof or lower is ineffective. Yes ridge vent is a great product that is passive and creates a natural negative air pressure but each roof is in need of its own type of ventilation. I also don t like on the roof intake vents like the edge vent or smart vent though i have installed the edge vent last year.

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. Typically a hip roof should have 1 power fan per 1500 square feet of roof to best exhaust ventilate the heat in the attic space. We just went through a near record breaking winter and they performed well so my mind is being slowly swayed. These holes will likely be installed closer to the ridge but manufacturer instructions should always be followed.

From the roof they will then draw a guide hole the size the diameter of each vent. We are basically starting over and can install any type of attic exhaust system we wish. It provides 9 sq. Try covering the full ridge of the hip roof using cobra exhaust vent.

Of course this depends on the strength of the power fan. A powered attic fan and install a ridge vent b ridge vent only and install. However perspective roofers have various opinions on how to properly vent a hip roof with soffit intakes. I don t like hip vents won t install them.

I can t see how they wouldn t let in a driving rain in a 40 mph wind. We re going to have new plywood sheathing and shingles installed on our hip roof. Cobra hip vent provides effective ventilation on hip roofs with little or no ridge area. This will ensure protection against weather finest appearance.

Here are the three options presented. From the roof the roofer will remove shingles around the guide hole and about one inch back on the upper side of the hole. In these cases there may be no option but to add multiple individual exit vent openings across the roof field. Cut down the sheathing just for protection and constructional integrity pre set the proper blade depth.