Attic Ventilation Ridge Vents

Warm air that escapes rooms below gets trapped in the attic.

Attic ventilation ridge vents.

Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. Static vents often protrude from roofline thanks to. Ventsure 4 foot strip heat moisture ridge vent with weather protector moisture barrier. That means you have a lower risk of mold or mildew development.

Roof ridge vents do work well when there are soffit vents or box vents that help to draw air into the attic. Roof vent attic fan plastic ridge vents air vent ridge vents gaf venting attic vent plug. The rvk1a steel roof cap kit is an the rvk1a steel roof cap kit is an easy to install vent for ventilation fans bath rec room home gym etc. In other words the entire vent opening doesn t count as vented space.

Thick ridges of ice on your eaves in winter are a sign of poor attic ventilation. Combination eave and ridge venting isgenerally recognized as a superior venting technique. Snow melts and the water refreezes on the cold eaves creating ice dams. Where a properly designed and installed eave and ridge ventilation system is employed a free flow ventilation area equal to at least one square foot per 300sf of attic floor area is often sufficient.

To install the rafter vents staple them directly to the roof decking. Warm air that escapes living space also carries moisture that will condense on rafters or roof sheathing. Installation of this type of attic ventilation involves leaving a gap in the sheathing along the ridge and covering it with a perforated vent. That said air resistance and interference such as vent grates reduces the area of true ventilation.

Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation. Ventsure 4 foot strip heat moisture ridge vent. Choose one of the following products to meet the recommended exhaust nfva of 528 square inches. How doers get more done.

You will also discover that this product can work by itself to release moisture from the house which is especially useful during the winter months. 27 lineal feet required. This cap features both a back draft damper and bird screen preventing outside air from entering the home and birds and small pests from entering duct work. See the benefits of attic ventilation a new roof is more than just shingles.