Insulating Attic With Edge Vent

Baffles are available at home centers.

Insulating attic with edge vent.

How to avoid condensation leaks attic mold insulation mold structural damage to roof framing when roof venting is not possible cathedral roof and knee wall insulation venting air path options in older homes hot roof designs. If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the manufacturer s warranty. Move across the attic until you ve hit your desired height at every point. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow.

They call this a venting drip edge. Worries about the hot roof un vented cathedral ceiling designs how to. The solution is to add baffles which allow air to flow past the insulation photo 9. Traditionally insulation materials that are placed inside of an attic will require air circulation within the attic space to assist in drying excess moisture in this indoor space.

The venting drip edge seems to be the easiest and most common way to go. Then pivot in place and do the same thing to the other side. For the same reason insulation shouldn t touch the roof s underside. Insulation is used in an attic for cross ventilation to minimize potential for moisture accumulation and condensation to help energy savings and moisture control.

If your attic is well insulated the insulation might be plugging the spaces between rafters just above exterior walls. It not only provides continuous intake airflow at the roof s edge but it significantly simplifies intake vent installation by keeping the roofing contractor on the roof. 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. Never cover attic soffit vents with insulation use rafter vents and soffit vents to maintain airflow.

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. Your actual living space is sealed and insulated at the attic floor the attic is outside this envelope. Blow in insulation until the hopper is empty. 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.

Once the vent is in place then you can add blankets or batts or even blow insulation right out to the edge of the attic floor. That means air can t flow from the soffit vents to the roof vents. The edge vent air vent the industry leader in residential attic ventilation has a shingle over edge of roof installed intake vent the edge vent. One great alternative to a soffit ventilation system is to install an intake vent right at the lower edge of the roof.

For the center areas hold the hose level and blow in insulation evenly until you ve reached your level lines photo 6.