Copyright © 2011, Tjernlund Products, Inc. All rights reserved. P/N 8504173REV. 2/11MODEL RVB3 ROOF VENT BOOSTER FANINSTALLATION INSTRUCTIONSOWNER IN
DESCRIPTIONA Powered Roof Vent Booster (RVB) is a simple and safe way to increase attic ventilation. RVB’s allow you to avoid thehassle and danger of
3. Temporarily secure the RVB to the underside of the roof sheathing with the included screws through the holes in each corner of theRVB flange. IMPOR
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