11. Center the curb over the hole, ensure the top of curb is
parallel with the roof ridge and toenail in place. Make
sure the curb is securely attached to the roof.
12. Flash with lead, copper or other preferred flashing
materials. Ensure flashing on top two thirds of curb is
installed under adjacent roofing materials.
13. Apply a large bead of silicone on the bottom side of
ventilator base, place over curb and affix with galvanized
nails or screws.
14. Using a good grade of roofing cement material, seal
shingles, flashing and all nail heads. DO NOT seal the
bottom edge of the flashing.
MODELS 355CSOBK • 355CSOBR
15. Install the ventilator dome to the ventilator base using the
four (4) stainless steel 5/16" sheet metal screws removed
during step 3. Remove cardboard from the solar panel
and verify the ventilator operates.
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