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E. Apply sill flashing tape #1. #UTAPIECEOFmASHINGTAPELONGER
THANTHEOPENINGWIDTH!PPLYATTHEBOTTOMOFTHEOPENINGASSHOWN%SOITOVERHANGS
TOTHEEXTERIOR
Note: The tape is cut 12" longer than the width so that it will extend 6" up each side of
the opening.
REMEMBER TO USE APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT.
A. Make sure the bottom of the opening is level.
Note: It is critical that the bottom is level for the window to be
installed correctly.
B. Verify the window will fit the opening. Measure all four sides of
THEOPENINGTOMAKESUREITISLARGERTHANTHEWINDOWINBOTH
width and height. On larger openings measure the width and height in
several places to ensure the header or studs are not bowed.
Note: 1-1/2" or more of solid wood blocking is required around the
perimeter of the opening. Fix any problems with the rough opening
before proceeding.
C. Cut the water resistive barrier (1C). Additional cutting patterns
given below.
D. Fold the water resistive barrier (1D). Fold side flaps into the
opening and staple to inside wall. Fold top flap up and temporarily
fasten with flashing tape.
F. Tab the sill flashing tape and fold.#UTWIDETABSATEACHCORNERFROMEACHSIDEOF
CORNER&&OLDTAPETOTHEEXTERIORANDPRESSlRMLYTOADHEREITTOTHEWATERRESISTIVEBARRIER
1
ROUGH OPENING PREPARATION
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'Apply sill flashing tape #2. Cut a piece
OFmASHINGTAPELONGERTHANTHE
opening width. Apply at the bottom,
OVERLAPPINGTAPEBYATLEAST$O
NOTALLOWTHETAPETOEXTENDPASTTHE
INTERIORFACEOFTHEFRAMING'
Note: The flashing tape may not fully
cover the framing members.