Installation Guide

ManualsBrandsJELD-WEN ManualsBay Windows and Bow Windows71.5 in. x 59.5 in. V-4500 Bay Vinyl Window with Grille Between Glass

Table Of Contents

Safety and Handling

CREATE “INTERIOR” AIR SEAL

Installation Instructions

for Vinyl Bay/Bow Windows with Integral Nailing Fin (JII-90025)

Please visit jeld-wen.com for warranty

and care and maintenance information.

Thank you for choosing

JII-90025 8/21

Continuous Air Seal

NOTE: Shims may need to be cut back, so the interior air seal is

“continuous" between the window frame and the rough opening.

Create a continuous air seal on the interior by integrating the rough

opening and the window frame with low expansion polyurethane foam or

backer rod and sealant. If needed, apply additional sealant between the sill

pan or rough sill and the window frame.

After Installation

• Ensure weep holes/channels are clear of debris for proper water

drainage. DO NOT seal weep holes/channels.

• Install exterior wall surface per manufacturer’s guidelines.

• Leave an expansion/contraction gap of approximately 3/8" between the

window frame and nal exterior wall surface (siding, stucco, etc.). For a

nished look and additional protection, seal this gap on the sides with

backer rod and sealant. If sealant is applied above the drip cap, ensure

the sealant bead is discontinuous to allow for drainage.

• Remove protective lm (if applicable) on the glass within six months.

• Protect recently installed units from damage from plaster, paint, etc.

• The head and seat board should be protected (e.g. roof, skirt) and

insulated with rigid foam.

Low expansion foam

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or duplication is prohibited. JELD-WEN reserves the right to change product specications without notice. Please visit our website at jeld-wen.com for current information.