Endurance Windows

Commercial-rated performance engineered for mid- to high-rise and mixed-use construction with punched openings

Superior strength and durability, plus industry-leading water resistance
Endless configuration possibilities thanks to an intersecting integral bar system
Backed by one of the strongest warranties in the business

Introducing the NEW Deep Backset Frame

Unlike traditional snap-in systems, our innovative, seamless one-piece design tackles the challenges posed by exterior insulation, masonry, and shadow box installations with ease. This system eliminates the need for additional bucking, blocking, or complex flashing details. It installs effortlessly, nailing into the opening just like any standard nail-on window using typical flashing methods, without requiring brake metal. This simplicity streamlines the installation process and also ensures a clean, professional finish that stands up to rigorous standards.

Frame Options

Block Frame

1” Deep Backset

1-3/8” Deep Backset

3-7/8” Deep Backset

Stucco Key 1” Backset

StuccoFin Frame

1-3/8" Nailfin Backset

Products

Endurance Casement

Modern, functional, and aesthetically pleasing outward-projecting panels

Performance

Design Pressure: PG ≤70
Water Penetration Resistance Test Pressure: ≤10.50 psf
Air Infiltration: ≤0.12 cfm/ft

Water Test Pressure

LC-PG 25-60:	Field 2.5–6.0 psf
	Lab 3.75–9.0 psf
CW PG 30-70:	Field 3.0-7.0 psf
	Lab 4.5-10.5 psf

Acoustical Performance

STC 29-44/OITC 23-33

NFRC

U-value 0.18-0.31
Solar heat gain coefficient 0.18-0.30
VT 0.40-0.45

Endurance Awning

Modern, functional, and aesthetically pleasing top-hinged out-swinging panel for many architectural styles

Performance

Design Pressure: PG ≤60
Water Penetration Resistance Test Pressure: ≤9 psf
Air Infiltration: ≤0.15 cfm/f

Water Test Pressure

LC-PG 25-40:	Field 2.5–4.04 psf
	Lab 3.76–6.06 psf
CW PG 30-60:	Field 3.0-6.0 psf
	Lab 4.5 -9.0 psf

Acoustical Performance

STC 29-44/OITC 23-33

NFRC

U-value 0.18-0.31
Solar heat gain coefficient 0.18-0.30
VT 0.40-0.45

Endurance Casement Frame Fixed

High-performance standard windows that do not open

Can be used in any size building with punched openings

Performance

Design Pressure: PG ≤65
Water Penetration Resistance Test Pressure: ≤9.75 psf
Air Infiltration: ≤0.01 cfm/ft2

Water Test Pressure

LC-PG 25-60:	Field 2.5–6.0 psf
	Lab 3.75–9.0 psf
CW PG 30-65:	Field 3.0-6.5 psf
	Lab 4.5 -9.7 psf

Acoustical Performance

STC 29-44/OITC 23-33

NFRC

U-value 0.16-0.30
Solar heat gain coefficient 0.22-0.30
VT 0.50-0.57

Endurance Single Hung

High-performance windows with a fixed top sash and an operable bottom sash that moves vertically (also known as Endurance Vertical Slider)

Performance

Design Pressure: PG ≤55
Water Penetration Resistance Test Pressure: ≤7.5 psf
Air Infiltration: ≤0.16 cfm/ft

Water Test Pressure

LC-PG 25-55:	Field 2.5-5.5 psf
	Lab 3.75-8.25 psf
CW PG 30-70:	Field 3.0-5.0 psf
	Lab 4.5-7.5 psf

Acoustical Performance

STC 28-36/OITC 23-29

NFRC

U-value 0.22-0.30
Solar heat gain coefficient 0.18-0.30
VT 0.40-0.53

Endurance Slider Frame Fixed

High-performance standard windows that do not open
Can be used in any size building with punched openings

Performance

Design Pressure: PG ≤50
Water Penetration Resistance Test Pressure: ≤7.5 psf
Air Infiltration: ≤0.10 cfm/ft

Water Test Pressure

LC-PG 30-50:	Field 3.0-5.0 psf
	Lab 4.5-7.5 psf
CW PG 30-45:	Field 3.0-4.5 psf
	Lab 4.5-6.75 psf

Acoustical Performance

STC 28-36/OITC 23-29

NFRC

U-value 0.19-0.26
Solar Heat Gain Coefficient 0.24-0.32
VT 0.53-0.60

Endurance Horizontal Slider

Easy functionality and a streamlined look for modern construction
One sash remains stationary and the other opens horizontally to the left or right for air circulation

Performance

Design Pressure: PG ≤50
Water Penetration Resistance Test Pressure: ≤7.5 psf
Air Infiltration: ≤0.07 cfm/f

Water Test Pressure

LC-PG 25-50:	Field 2.5-5.0 psf
	Lab 3.75-7.5 psf
CW PG 30:	Field 3.0 psf
	Lab 4.5 psf

Acoustical Performance

STC 28-36/OITC 23-29

NFRC

U-value 0.22-0.30
Solar Heat Gain Coefficient 0.22-0.30
VT 0.49-0.55

Standard Configuration Features

Compression – seal design
Vinyl frame – Increases thermal performance – Adds color options – Reduces condensation
Hollow compartments on frame and sash
Fusion welded corners
Available multiple locking points
Easy-to-operate hardware
T-BAR

Ready to add Endurance Windows to your project?

Contact us