Attic Insulation Blocking Soffit Vents

Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside.

Attic insulation blocking soffit vents.

These specialty vents do not affect the. If you don t know how your roof vents work or if you re unsure about your attic ventilation in general you should talk to a roof inspector about your current system and any inherent weaknesses that may be at. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. Vents placed in the underside of the roof s overhang or soffit provide a means for air to get into the attic to help cool it in the summer months.

If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air. Unfortunately blow in insulation can drift. On 2011 10 13 by mod remove insulation blocking soffit air intake in the attic. Blocked or inadequate roof ventilation air intake openings at soffits or eaves.

Once it s out of the way. You can remove insulation from inside the attic or from underneath the soffits. Vent these fans through the roof or soffit. This article explains the effects on buildings caused by locked soffit intake vents and we explain how blocked soffit venting causes or contributes to attic condensation moisture and potential mold contamination problems in buildings.

Install rectangular roof vents on both sides of the roof. The soffit vents are now installed but you still need to make sure there s no insulation blocking the new vents. Remove any insulation from the new vent photo by merle henkenius. Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof.

Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof. Rectangular roof vents work best when the wind blows over the top of them rather than into them. Covering up the soffit vents with loose fill or batts which can happen if you stuff insulation along the eaves is a huge no no. Because the soffit vents are on the attic floor it s easy to cover them with insulation.

For the same reason insulation shouldn t touch the roof s underside. Rectangular roof vents installed on one side of the roof only.