ventilation Articles

Ice Dams

February 8, 2010

Ice dams on your roof can be very dangerous. It can lead to leaks, and in time, roof damage. Find out why ice dams occur, and how to prevent ice dams from happening.

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 )