OPTI-A412 Variable 4 Wings Roof Attic Ventilator for Sloped Roof, Grey

OPTI-A412 Adjustable 4 Wings Roof Attic Ventilator for Sloped Roof, ★ Quiet operation under 75 decibels ★ 3-year limited warranty included → Get Your Perfect Cut

• The OPTI-A412 roof attic vent for sloped roofs • The design with 4 12” wings and its openings allow ideal attict ventilation • Openings shaped from the structure of the vent eliminate any need for long-term maintenance and prevent the intrusion of birds or rodents inward • The anti-gust deflectors prevent the infiltration of weather regardless of the wind direction • This vent gives the advantage of a cooler attic in summer and drier in winter • It thus extends the integrity of the structure optimizing the comfort inside and the energy saving • The static vent with the help of the wind produces a chimney effect • The air is exchanged continuously • It exchanges air from the attic at a frequency of 418 cubic feet /min, for a surface area of 1,000 to 1,200 sq ft • Facilitates the evacuation of heat and condensation • Preserves the integrity of attic materials • Easy to adjustment on a slope from 2/12 to 18/12 • Easy to install by only one person<b