Common Baffle and Vent Questions
Contractors often use baffles and vents in attics as part of a ventilation system. They provide proper air flow and keep soffits from being blocked by insulation.
Why use Baffles and Vents?
Rafter vents and attic baffle vents keep air moving through the insulation. This prevents moisture build up and allows for drier attics. Baffles and vents prevent ice-dam formation in the winter and keep the attic cool in the summer. They prolong a roof life by protecting shingles from additional heat.
Where in a Building are Baffles and Vents Normally Used?
Baffles and vents are installed in attics and along the roof. They can be used in conventional attics, finished (knee wall) attics and cathedral ceilings. Rafter vents are attached directly to the roof deck while baffles can be attached to the top plate, truss and roof deck.
In What Geographies Can Baffles and Vents Be Used?
In general, baffles and vents are appropriate in all geographies and climates. However, the specific type of baffle or vent appropriate for your project may be determined by your location and climate. In places where condensation is more likely to accumulate, you may want to choose higher performance baffles and vents.
Can Baffles and Vents Be Used in Residential or Commercial Construction?
Baffles and vents are used primarily in residential construction. They do, however, have some use in light commercial buildings where the attic has soffits. Homes or businesses with flat or tile roofs will not use baffles or vents. If you are unsure of which baffle or vent product to use, contact your local Service Partners branch.