No Vents In Attic

The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.

No vents in attic.

Obviously more research is needed but here s what we do know. Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all. For the same reason insulation shouldn t touch the roof s underside. When the attic becomes part of the home to be heated and cooled open wall gable vents and roof vents are no longer feasible but the underside of the roof the sheathing and rafters can still get.

Your actual living space is sealed. On the principle that hot air rises the accumulated heat and moisture would rise to the attic and out the roof vents. Ice damming is caused by the warmer attic space melting the snow down to the cooler eaves where it freezes. Too often mechanical ventilation ducts from bathrooms kitchens or laundry rooms deposit warm moist air into the attic instead of outside the building envelope.

Problems when roof has no overhang. Focus on the other ventilation you have in the attic. Properly vented attic space will not do that because its theoretically the same temp as it is outside. If you are installing a new roof consider a drip edge vent.

Install low gable vents located above the top level of the attic ceiling insulation use eye brow vents that are on the top of the sloping roof surface near the soffit eave area. A combination of air sealing and insulating the attic floor while providing ventilation considerably reduces the potential for condensation as warm moist air is less likely to enter the space and condense on cold surfaces. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. Look at your eaves and roof.

Your roof vents may not look anything like the ones shown in this article. If you don t see any attic vents on the roof or in the eaves you need to add some. If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the. Don t avoid ventilating your attic for fear you re letting cold air into the house.

For proper ventilation it isn t enough for air to simply get into your attic. Your roof may have a ridge vent which is a low profile continuous roof air vent running along the peak of the roof. How to vent an attic with no eaves the function of soffit vents. 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.

Gable vents may circulate air through only a small percentage of your attic. You can use a shingle over vent at the bottom or mid roof mid roof being higher up than the potential ice damming.