ventilation Articles

Structural Insulated Panels

August 31, 2009

Q: We are building a home with 8″ structural insulated panels (SIPS) for the roof decking (9/12) and want to use a Fabral SSR roof on top. As an engineer, I know the value of ventilation, but when asked, the roof & SIP manufacturers point at each other and say, ‘whatever he says’. Do I… ( read more )

Garage Ventilation

August 29, 2009

Q: I had my garage roof replaced (attached to the house). They removed my 2 wind turbines and installed 1 ridge roof vent, I have 6 soffit vents on the eaves, But my garage is now extremely hot. They said I no longer needed the turbines with the ridge roof vent. How can I cool… ( read more )

New Metal Roof

August 13, 2009

Q: I’ve got a few questions for you regarding metal roof installs. We’ve currently got a composition shingle roof that is 8 years old. I has some hail damage, but no leak problem at all. There is a local job we looked at that uses U panel on a new construction, and are giving some… ( read more )

Does Metal Roofing Require A Roof Deck?

Q. We just built a 16’x16′ shed, that will be converted into a guest house in a year or two. Our contractor installed a metal roof, but he put it directly on 2×4’s attached to the rafters, as opposed to installing on a roof deck. The 2×4’s are 3 1/2 feet apart in some places…. ( read more )

Too Much Ventilation?

August 11, 2009

Q: I had my roof replaced 18 months ago and the roofing company found many of the boards to be rotted and moldy (even though the house had a complete reboard done only 9 years earlier). They informed me it was because I did not have enough ventilation. I had 5-6 can vents near the… ( read more )

Metal Over The Old Roof

August 4, 2009

Q: I currently have 2 layers of shingles on my house. I live in south western KY and the house is subjected to lots of thunderstorm with high winds, hail, and heavy rains. We also have several tornadoes. My roof has a lot of wind lift from the last storms that went through and now… ( read more )