Pella 801U0103 Integrating the Window to the Water Resistive Barrier, 3AÎ

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2SETTING AND FASTENING THE WINDOW (CONTINUED)

I.	Fasten the window to opening. On
	windows with a fixed extruded fin, drill
	1/8 diameter holes in the fin every 12".	Ó
		2I
Windows with Nail Fin:
J.	Drive a 2" galvanized roofing nail	'JYFE
	into each of the pre-punched and pre-	&YUSVEFE 'JO
	drilled holes.

For flexible fin: Drive nails until the head

contacts the fin, however do not sink the head. 2JÓ This allows for movement of building materials.

Note: Make sure all fin corners are lying as flat as possible.

3INTEGRATING THE WINDOW TO THE WATER RESISTIVE BARRIER

Note: Step 3 applies to windows with installation fins used in combination with a water resistive barrier.

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A.Units that do not have pre-applied fin corners: Cut four pieces of flashing tape 1-1/2" long. Apply one piece of flashing tape to each end of the sill fin so that it extends 1-1/2" past the end of the sill fin. Apply one piece of flashing tape to the bottom end

of each flexible fin, beginning 1-1/2" from the end of the fin, and lapping over the flashing tape that extends from the end of the sill fin.

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B. Apply side flashing tape. Cut two pieces of flashing tape 4" longer than the frame height of the window. Apply one piece 1/2" up onto the frame cladding over the nailing fin and onto the water resistive barrier to each side. The tape should extend 2" above the top of the window and 2" below the bottom of the window. Press the tape down firmly while folding down the excess tape at the top and bottom of the window.

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Note: DO NOT tape or seal the bottom nailing fin.	3B
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C.Apply top flashing tape. Cut a piece of flashing tape long enough to go across the top of the window and extend at least 1" past the side flashing tape on both sides. Apply the tape 1/2" up onto the frame cladding over the top nailing fin as shown. Fold the overlapping tape down, and press all tape down firmly.

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