How High Above Hip Roof Should Duravent Be

The hip roof is the most commonly used roof style in north america after the gabled roof.

How high above hip roof should duravent be.

My existing house has a hip roof with terrible ventilation and it s stupefyingly hot in the attic. Vertical blue line along the left side of the chimney in our photo. For horizontal installations check the appliance manufacturer s instructions for minimum rise and maximum horizontal run. 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.

Duravent offers duratech in large diameters to vent largescale residential fireplaces and building heating appliances. Measure the roof pitch. Metal chimneys that are more than 5 tall above the roof or 6 tall in some jurisdictions require bracing at the rooftop. Determine the minimum height above the roof.

The top of the chimney should be at least 3 ft 0 92 m above the roof surface. To determine this height measure 10 feet horizontally toward the roof from the point 2 feet below the top of the pipe. We are going to be replacing the roof on our house as part of a project to make the house more energy efficient as well as an addition and remodel. 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.

These holes will likely be installed closer to the ridge but manufacturer instructions should always be followed. The cap on top of the pipe should not be be included in the measurement. 2002 simpson dura vent inc po box 1510 vacaville ca 95696 1510 retrieved 6 june 2015 op cit. Duratech chimney is tested and listed for continuous operation at 1000 f and ten minutes at 1700 f in accordance with the ul 103 test standard.

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. From the roof the roofer will remove shingles around the guide hole and about one inch back on the upper side of the hole. Specifications applications in the united states duratech chimney can be used with wood fireplaces furnaces boilers. This style of roofing became popular in the united states during the 18 th century in the early georgian period.

This specification makes sure steep roof slopes are cleared. Select the proper flashing and storm collar. For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m. A snorkel termination may be used if height restrictions prevent adequate rise above the appliance.

This article describes bracing and support requirements for metal chimneys. There are nice large overhangs at the eaves and we will be. From the roof they will then draw a guide hole the size the diameter of each vent.