Vented Or Non Vented Roof

Preventing moisture is essential for having a properly functioning un vented roof.

Vented or non vented roof.

However they work best with airtight ceiling attic interfaces and where ductwork and air handlers are not located within attic spaces. A properly insulated ventilated roof can help to control or prevent the formation of ice dams. Non vented won t pull in burning embers like a vented roof will. Vented attic roof designs have the advantage of a long proven historical track record.

It also helps prevents mildew mold and fungus from infiltrating the home due to excessive moisture build up. Because the sheathing is kept cooler roofing materials tend to have a longer life span. Ventilated roofs remove moisture from roof cavities structural members sheathing and insulation. Keep in mind the ratio of vented to non vented panels will differ depending on your home and your installer s techniques.

If you live in an area prone to wildfire exposure you may want to consider a non vented roof. In an un vented roof foam can serve as the air barrier and vapor retarder and prevent moisture from getting in to the roof cavities. If you re unsure about whether or not to vent your metal roof talk to a product specialist. Unvented attic roof designs have the advantage of providing conditioned spaces for ductwork and air handlers.

Vented roofs provide the capacity for moisture to be removed from the underside of roof sheathing via convection currents in the vent cavity. The other option of course is a vented attic which requires an equal balance of intake and exhaust vents. So convection currents need to be carefully designed. The air enters the space and with the aid of attic baffles a tubular object attached directly to the underside of the roof decking but above the insulation air is free to enter and flow upwards.

Should you vent a metal roof. In a vented roof foam can seal the openings and serve as an air barrier and a vapor retarder in addition to its insulating function. Metal roofing works well with this because the metal is unaffected by heat not being able to pass through it and enter the attic. Non vented roofs provide conditioned spaces for duct work ac ventilation units.

These roofs keep your home cooler during the hot summer months. They can help you determine the needs of your roof and environment and make a recommendation. Non vented soffits are the same panels but they are missing the holes or screens that are found often in plywood soffit that allow air into the roof. The increase in the use of complex roof shapes and cathedral ceilings has resulted in problems with vented roofs.