Hip Roof And Ridge Vent

Attic ventilation hip roof how to ventilation hip roof.

Hip roof and ridge vent.

The average person spends about 90 of their time indoors each day. It provides 9 sq. The original 6 000 square foot roof only had 6 static mushroom vents and most of the existing soffit vents were clogged with debris. We re going to have new plywood sheathing and shingles installed on our hip roof.

This ridge vent has 18 square inch net free area per linear foot ventilation which means i need 100 linear feet of ridge vent of which i only have 50 feet or 900 square inches of the required 1776 needed. A powered attic fan and install a ridge vent b ridge vent only and install. The roof installation using hip ridge vent has survived its first winter and spring rains without reports of water infiltration. We are basically starting over and can install any type of attic exhaust system we wish.

I went up there last october when the high temp outside was 75f and measured temps in the attic no lower than 130f on the top of the insulation and over 160f at the roof line. Cobra hip vent provides effective ventilation on hip roofs with little or no ridge area. 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. 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.

About two thirds of that time happens at home. The only problem with this lifestyle is that the quality of your indoor air can be up to 5 times worse than the outside air. Of course this depends on the strength of the power fan. At the time of the installation of exhaust vents ensure that you are aware of whether the hip roof features ridge boards not.

My existing house has a hip roof with terrible ventilation and it s stupefyingly hot in the attic. Roof ridge vents can reduce indoor air pollution levels. The leaving of this 6 defends the structure against wind propelled rains. There is an old existing power fan two passive vents and a ridge vent.

The house has a shallow hip roof and the house is 42 wide and 26 deep. 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. Inches per linear foot 19 051 mm 2 lm of net free ventilating area to help exhaust heat and moisture from the attic. Here are the three options presented.

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. There are nice large overhangs at the eaves and we will be putting in lots of venting there but the question is what to do at the top.