INSTALLATION INSTRUCTIONS OF BAY/BOW FRAME ... - Pella.com

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INTERIOR SEAL7SEAL WINDOWS TO BAY/BOW FRAMEA. Confirm the gap between the window and the bay frame on the exterior at thehead and jambs is < 3/16". If it > 3/16", remove screws, apply additional pressureagainst the window to compress the gasket against the stops and then reset screwsso the gap is < 3/16".B. Check the window operation (vent units only) by opening and closing the window.If needed, remove screws and adjust shims and reset screws before applying sealant.C. From the interior fill the corners at the sill with sealant.Note: Cover the seat board with cardboard, plastic ordrop cloth to protect the wood surface.D. Fill the opening in each sill pan between the windowand sill pan edge with sealant. Continue applying upeach side to approximately 2" above the flashing tape.Tool sealant down into pan taking care to fill all voids.When finished the sealant should be level with the topof the pan edge and the window interior accessorygroove should not be visible.E. Apply insulating foam sealant. From the interior,insert the nozzle between the window frame and thebay/bow frame and place a continuous 1" bead of foamsealant along head and jambs. Connect the foam to thesealant along the sill. Allow the foam to cure completelybefore proceeding to the next step. Repeat on allwindows installed in the bay/bow frame.Caution: Ensure use of low pressure polyurethanewindow and door insulating foams and strictlyfollow the foam manufacturer’s recommendationsfor application. Use of high pressure foams orimproper application of the foam may cause thewindow frame to bow and hinder operation.F. Check the window operation (vent units only) by opening and closing the window.Note: If the window does not operate correctly, check to make sure it is still plumb,level, square, and the jambs are not bowed. If adjustments are required, remove thefoam with a serrated knife. Adjust the shims and reapply the insulating foam sealant.
G. Insert jamb hole plugs (provided) into each screwhole for single-hung and double-hung units.7GShimInstallation Screw HoleJamb plugH. Apply insulating foam sealant. From the interior,insert the nozzle between the bay/bow frame andthe rough opening and place a continuous 1" beadof foam sealant.EXTERIOR SEAL WINDOWS8TO BAY/BOW FRAMEA. Place a bead of sealant along the sill of each windowbetween the window and the bay/bow frame. Continuethe bead up each jamb approximately 1/2".B. Continue applying sealant bead around theentire perimeter of the window exterior whenthe following conditions are met. SEAL BAY/BOW FRAME TO ROUGH OPENINGC. Insert backer rod into the space around thewindow deep enough to provide at least a1/2" clearance between the backer rod andthe exterior face of the wall sheathing.Note: Backer rod adds shape anddepth for the sealant line.D. Apply a bead of high quality exteriorgrade sealant to the entire perimeter ofthe window.E. Shape, tool and clean excess sealant. When finishedthe sealant should be the shape of an hourglass.Note: This method creates a more flexible sealant linecapable of expanding and contracting.
Page 3 and 4: 1 BAY/BOW FRAME PREPARATION (CONTIN
Page 5 and 6: 3PREPARINGAND SETTINGTHE BAY/BOW FR
Page 7 and 8: 4PREPARINGFRAME OPENINGS AND WINDOW
Page 9 and 10: 5WINDOWPREPARATION(CASEMENT ONLY) (
Page 11 and 12: 6SETTINGAND FASTENINGTHE WINDOW (CO
Page 13: FIXED WINDOW AND FIXED FRAMENote: D
Page 17 and 18: 10 INTERIOR CASING/TRIM INSTALLATIO
Page 19 and 20: FINISHThe interior and exterior fra

INSTALLATION INSTRUCTIONS OF BAY/BOW FRAME ... - Pella.com

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