To be sure your roof is getting enough ventilation, there are simple calculations that you can follow. Beyond the decreased capacity for insulation when venting the roof deck, venting the roof deck or the attic has some other drawbacks worth considering. In cold climates, snow can enter the soffit and ridge vents, melt, and potentially cause rot.

2023年10月12日 · Most roof vents on the market are passive devices that rely on the stack effect, wind, temperature differentials, or some combination of those forces to move air. There also are electrically powered vents capable of moving a great deal of air, such as the roof-mounted models manufactured by Air Vent that can exhaust as much as 1320 cu. ft. per ...

Back up roof vent boots with flashing, counterflashing, and proper shingling to prevent leaks. By Mike Guertin Issue 276 - July 2018 Synopsis: Mike Guertin describes his method for flashing roof vent boots, a main source of roof leaks.

If you’ve got a roof over your latest building project, chances are you’ve also given some thought to roof venting. It’s one of the more confusing aspects of home building and remodeling, and even with a large amount of information available, it perplexes builders and homeowners alike.

2016年1月6日 · When gable vents are left open, air can enter through the gables and bypass the soffit vents. If air flows in through the gables and out the ridge vents, the entire roof doesn’t receive the full effect. The air isn’t entering through the soffit vents, traveling up the underside of the roof, and exiting through the ridge vent.

An unvented roof is often the only viable option when roof framing is complicated, such as when there are hips, valleys, dormers, or skylights that would prevent eave to ridge ventilation; when the house has no soffits and hence no soffit vents; or when adding eave vents would clash with the house’s architectural style. Unvented roofs also ...

In this case, FHB editorial adviser Mike Guertin describes his approach to venting an attic where he was unable to install air intake vents at the eaves. Roof Vent Retrofit From the Outside In – Reroofing is the perfect time to lift the hood and make short work of …

That heats up attic air. Adding exhaust vents high on the roof can help to accentuate the inflow of air through the soffit vents. It doesn’t matter if these exhaust vents are ridge vents, gable vents, roof vents, or some combination. If windblown rain or …

Shingle-over ridge vents were a no-brainer for the exhaust vents, but choosing the style of intake vents was a bit trickier. The eaves on this house project only 8 in. from the sidewall, and the soffit boards are applied to the underside of the sloping rafter tails, which meant there was not enough room to install intake vents in the soffit.

This article discusses low-profile ventilation for tiled roofs. In a market dominated by asphalt-shingled roofs with intake vents at the soffits and exhaust vents at the ridge, O’Hagin’s is looking out for the relatively small sliver of houses with tiled roofs.