Roof Sheathing Baffles

Site built baffles have several possible advantages over manufactured baffles.

Roof sheathing baffles.

So why install a baffle. The dual function design creates ventilation channels under the roof sheathing for healthy air circulation while integral baffles prevent wind washing. Roofs often require ventilation channels directly under the roof sheathing either for a short section of the roof for example near the eaves or for the entire roof from soffit to ridge. The rigid foam is cut to be 2 inches wider than the space between rafters then 1 inch of foam is scored and folded over on either side of the foam creating standoffs that hold the foam away from the roof sheathing providing a space for air to flow.

In order to make this kind of roof assembly work insulation baffles or insulation chutes are necessary especially if the attic is going to have any kind of significant amount of insulation in particular blown in insulation that could potentially move around and block off the soffit ventilation from the attic thereby short circuiting air flow from the soffits through the roof s ridge vent. When set into place and sealed with spray foam the vent baffles are insulated and air sealed. Accuvent offers a quick and inexpensive solution for architects builders and renovators to ensure proper insulation performance for better energy efficiency and indoor air quality. They can create deeper ventilation channels for example and can be sturdier.

It is a simple yet functional design with the added bonus of keeping unwanted pests from entering your home. Brentwood s accuvent baffles for roof ventilation are designed to save energy for cleaner greener living spaces. Baffles establish a channel for air to circulate between the insulation and the roof sheathing.