Installation Instructions
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
Buck
Sheathed Wall
Trimmer 
studs
Header
Sheathing
King 
stud
INSTALLATION INSTRUCTIONS
for Vinyl Windows with Integral Nailing Fin (JII001)
Newer construction methods have led to an increase in air and water 
tightness in buildings. This frequently leads to negative air pressure 
inside the house, which can draw water through very small openings. 
Our installation method integrates the window with the weather 
barrier of the structure (typically building wrap).
Thank you for selecting JELD-WEN products. Attached are  
JELD-WEN’s recommended installation instructions for Vinyl windows 
with an integral nail n. 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. Areas such as Florida and the Texas TDI region have 
different anchoring requirements based on product certification. 
For information on specific products, visit www.floridabuilding.org 
or www.tdi.texas.gov and follow the anchoring schedule given in 
the drawings for the product instead of the anchoring schedule in 
this document.
Please 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 product warranty as part of the terms of 
thesale.
GLOSSARY
Buck
A wood framework attached to the masonry inside a window or patio 
door rough opening.
Mull Joint
The joint where two or more window units are structurally joined 
together.
IMPORTANT INFORMATION AND GLOSSARY
ROUGH OPENINGS
This installation guide specically addresses masonry/block wall, 
sheathed wall and open-stud construction.
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.
FULLY SHEATHED WALL CONSTRUCTION
The wall framing is covered by sheathing. Windows will be mounted 
ush against the sheathing. This installation assumes building wrap is 
properly installed prior to installation.
OPEN-STUD CONSTRUCTION
If self-adhesive ashing is to be 
applied so that it is wider than 
the framing of the wall, it may 
be necessary to cover the wall 
with backing support sufcient 
to support the entire width of 
the ashing.
This backing support should be a 
non water-degradable, thin 
(max. 1/8" thick) sheet material 
such as lauan or plywood. 
Completely surround the rough 
opening with the backing 
support. Backing support must be applied before building wrap.
The window will be mounted with the nailing n ush against the 
applied backing support.
Mulled Unit
Two or more window units structurally joined together.
Precast Sill
A pre-formed concrete block placed in the sill of a masonry/block wall 
to support a window.
Self-Adhesive Flashing
An adhesive backed tape material used to waterproof the rough 
opening and/or used to seal a window to the building’s weather barrier.
Shiplap
The layering method in which each layer overlaps the layer below it so 
that water runs down the outside.
Weep Hole (weep channel)
The visible exit or entry part of a water drainage system used to drain 
water out of a window.







