Rain Guard Installation for Roof Mount Attic Ventilators

Quick Answer

Install a rain guard on your roof mount attic ventilator to prevent water from entering the attic space, especially on steep roofs where water penetration is a concern. Follow the steps below for a secure, leak-free installation.

Step-by-Step Installation Guide

1. Gather Tools and Materials: You will need the rain guard, a screwdriver or drill, roofing screws (if not included), and a sealant compatible with your roof material. Check the rain guard package for any specific installation instructions. Check that all fasteners are corrosion-resistant to avoid rust over time.
2. Prepare the Ventilator Area: Clean the area around the roof mount ventilator to remove dirt, leaves, or debris. Ensure the roof surface is dry and free of loose shingles or sealant before installing the rain guard. A clean surface ensures a better seal and prevents water from seeping under the guard.
3. Position the Rain Guard: Place the rain guard over the ventilator, aligning it with the vent opening. The guard should sit flush against the roof surface. If the guard has a specific orientation (e.g., a sloped side), make sure it faces the correct direction to deflect rain. Double-check alignment before securing to avoid gaps that could let water in.
4. Secure the Rain Guard: Use the provided screws to attach the rain guard to the roof, driving them into the roof deck. Do not overtighten, as this can warp the guard or damage the roof shingles. If your roof is metal, use appropriate screws with rubber washers to prevent leaks. A common mistake is overtightening; use a steady hand and snug fit is enough.
5. Seal Any Gaps: Apply a bead of roofing sealant around the edges of the rain guard where it meets the roof. This provides an extra barrier against water penetration. Smooth the sealant with a putty knife or your finger to create a continuous seal. Inspect the sealant after it dries; reapply if you notice any cracks or gaps.
6. Test and Inspect: After installation, run the attic fan to ensure it operates normally and the rain guard does not obstruct airflow. Then, inspect the area for any signs of water leakage during the next rainstorm. If you notice leaks, check the sealant and screw seals; reapply as needed.

Product Facts

• Rain Guard for Roof Mount Power Attic Ventilators: The rain guard is compatible with our roof mount attic fan models and VX25 series static roof vents, and is designed for roof pitches over 8/12 but not greater than 12/12. Ensures you choose a rain guard that fits your specific ventilator and roof slope, preventing water intrusion effectively.