JELD-WEN JII032 Wood Bay or Bow Windows with Nailing Fin or Exterior Trim User Manual

Important information & glossary, Rough openings

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INSTALLATION INSTRUCTIONS

for Wood Bay or Bow Windows with Nailing Fin

or Exterior Trim (JII032)

FULLY SHEATHED WALL CONSTRUCTION

The wall framing is
covered by sheathing.
Windows will be
mounted flush against
the sheathing. This
installation assumes
building wrap is
properly installed
prior to installation.

OPEN-STUD CONSTRUCTION

The wall framing must be covered by backing support before the
window can be installed. The window will be mounted with the nailing
fin/exterior trim flush against the applied backing support.
This backing support should be a non water-degradable, thin (max.
1/8" thick) sheet material such as vinyl sheeting. Completely surround
the rough opening with the backing support. Backing support must be
applied before building wrap.

GLOSSARY

Backer Rod (backing material)

A material (e.g. foam rod), placed into a joint primarily to control the

depth of the sealant.

Buck

A wood framework attached to the masonry inside a window or patio

door rough opening.

Mulled Unit

Two or more window units structurally joined together.

Mull Joint

The joint where two or more window units are structurally joined

together.

Precast Sill

A pre-formed concrete block placed in the sill of a masonry/block wall

to support a window.

Shiplap

The layering method in which each layer overlaps the layer below it so

that water runs down the outside.

Newer construction methods have led to an increase in air and water
tightness in buildings. This frequently leads to negative air pressure
inside the home, which can draw water through very small openings.
Our installation method seals the window with the weather barrier
(typically building wrap).

Thank you for selecting JELD-WEN products. Attached are JELD-WEN’s
recommended installation instructions for wood and clad wood
bay and bow windows. Read these instructions thoroughly before
beginning. They are designed to work in most existing applications,
however; existing conditions may require changes to these
instructions. If changes are needed, they are made at the installer’s
risk. For installations other than indicated in these instructions, contact
a building professional.

Not all window types may be installed into every wall condition in all

areas. Consult your local building code official for applicable building

codes and regulations. Local building code requirements supersede
recommended installation instructions.

Note!

Installations where the sill is higher than 35 feet above ground

level, or any product installation into a wall condition not specifically
addressed in these instructions, must be designed by an architect or
structural engineer.
Failure to install windows into square, level, and plumb openings could
result in denial of warranty claims for operational or performance
problems.

Note to Installer:

Provide a copy of these instructions to the building

owner. By installing this product, you acknowledge the terms and
conditions of the limited warranty as part of the terms of the sale.

IMPORTANT INFORMATION & GLOSSARY

Estimated Install

Time for New

Construction

First Time: 2 hrs

Experienced: 1.5 hrs

Professional:

1

hr

12

6

1

11

2

10

3

9

8

4

7

5

This installation guide specifically addresses masonry/block wall, sheathed
wall and open-stud construction. Windows without an integral head
and seat board must be placed on a structure that provides continuous
support to the sill.

MASONRY/BLOCK WALL CONSTRUCTION

This installation
assumes that a
framework of studs
(often called a buck)
has already been
properly fastened and
sealed to the concrete/
masonry wall by a
building professional.

ROUGH OPENINGS

Sheathed

Wall

Trimmer

studs

Header

Sheathing

King

stud

Masonry

Wall

Buck

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