PreVent-It Soffit Vents 4 Inch - Only Design that Prevents Moist Air from Re-entering Home Under Eave Exterior Vents for Bathroom Exhaust Fan Screws Included White 1-Pack

Product Description How Our Soffit Vent Works IMPORTANT: Our soffit vent is designed for use with bathroom exhaust fans only. Installing a sister joint or cross brace is recommended to prevent the soffit from sagging. The vent exit should be installed at the outermost edge of the soffit for best performance. How to Install the PreVent-It 4 Bathroom Soffit Vent Step 1 Measure a 4.5 inch diameter minimum cut where you will install the soffit vent. Step 2 Pull transition flex duct through opening and attach to top of soffit vent using a zip tie (not provided). For hard duct installation pull transition duct through opening attach duct and soffit vent seal connection with tape or caulk (not provided). Step 3 Push attached duct and soffit vent into hole. Attach to soffit using four (4) provided screws. NOTE: You will see 6 screw holes; you do not need to put screws in the 2 holes nearest the screen. Frequently Asked Questions Is it OK for a bathroom soffit vent to discharge under the soffit? No this is a common misconception. Soffit vents should not discharge air under the soffit. That incorrect venting risks putting the health of your home and family at risk. Our soffit vent s design correctly displaces moist bathroom air away from the home and helps prevent the following issues that other vents can cause: Water and roof damage higher heating and air conditioning costs increased moisture in the attic which can cause rafter degradation early deterioration of roof shingles and indoor air quality issues that can impact health. How is the PreVent-It soffit vent different from other soffit vents? Unlike other soffit vents our patented vent: 1. Is the only bathroom soffit vent that can accurately claim that it moves the exhausted air away from the house preventing entry into the attic via the soffit. 2. Makes venting bath fans through the soffit the ideal method of venting. Our soffit vent eliminates roof penetrations and long exhaust ducts to a gable wall. Homeowners and builders can now vent bath fans without risking damage and indoor air quality issues in the attic. Why should I use a PreVent-It bathroom soffit vent instead of a roof vent? You should use our soffit vent over a roof vent because: 1. Roof venting bath fans increase the risk of roof leaks water damage and indoor air quality issues. Roof penetrations are the leading cause of roofing system failures. 2. Venting through the soffit is the least invasive and lowest-risk option – having a minimal impact on the roof and siding systems. Keep in mind this is only true if you use our soffit vent given its patented design. 3. Minimizing roof penetrations improves curb appeal by streamlining the design of your roof. Why should I use the PreVent-It soffit vent instead of a gable wall vent? Using our bathroom soffit vent is better than using a gable wall vent because: 1. Gable venting bath fans often require lengthy exhaust ducts increasing the risk of condensation in the duct potentially causing damage and indoor air quality issues. 2. Lengthy exhaust ducts decrease fan pushing power. Gable venting is not ideal for low-speed fans because the fan cannot push the exhausted air out of the house. Venting through the soffit using our soffit vent uses a shorter exhaust duct system because most bathrooms are on an exterior wall directly below the soffit. Shorter exhaust systems promote the removal of the exhausted air. 3. Gable venting exhaust ducts are exposed to attic temperature fluctuations which can promote condensation damage and indoor air quality issues. Conversely using the PreVent-It soffit vent to vent through the soffit positions the exhaust duct system under the attic insulation protecting the duct from attic temperature fluctuations.