Defender Series
Florida DBPR
Approved
Impact Rating LMI
Design Pressure +58/-58 psf
Energy
Made in USA
Pella Defender Vinyl Single Hung
Pella's commercial-grade vinyl impact window line, built in Ocala for multi-family projects.
Commercial-grade vinyl impact single-hung with tilt-in single sash for cleaning. Heat-fused mitered corner assembly on the CWS-6100 platform.
Florida DBPR
Approved
Impact Rating LMI
Design Pressure +58/-58 psf
Energy
Made in USA
Impact protection, built for South Florida
The Defender Single Hung is Pella's commercial-grade vinyl impact single-hung window, with an operable lower sash and fixed upper sash. The single sash tilts inward for cleaning access. Heat-fused mitered corner assembly on the CWS-6100 vinyl frame platform, LMI impact-rated for Florida coastal installations.
- Florida Building Code product-approved
- Vinyl frame engineered for strength and durability
- Large-missile impact-rated laminated glass
- Energy-efficient Low-E insulated glass options to control heat gain
- Professionally installed across South Florida by Armor Pro
Configurations
X = operable panel (it opens) · O = fixed panel (doesn’t open). Panels read left‑to‑right as viewed from outside (hung windows read top‑to‑bottom). Example: XO = operable on the left, fixed on the right.
Grille Styles
3/4" Contour Grilles-Between-the-Glass1" Contour Grilles-Between-the-Glass5/8" Flat Grilles-Between-the-Glass7/8" Exterior Applied Grille with 1" Contour Grilles-Between-the-Glass
Impact Protection
Tested to withstand hurricane wind-borne debris
Engineered Strength
Built and tested to Florida product-approval standards
Energy Efficient
Low-E insulated glass options reduce heat gain
Limited Warranty
Manufacturer warranty plus Armor Pro install workmanship
At a Glance
Frame Material
Vinyl
Max Size
53.125 x 76 in
Design Pressure
+58/-58 psf
U-Factor
0.25–0.54
SHGC
0.13–0.61
Impact Rating
LMI
Sizes & Pressures
| Configuration | Min size | Max size | Design pressure |
|---|---|---|---|
| Single-Hung | 17.875 x 24.75 in | 53.125 x 76 in | +58/-58 psf |
Glass & Energy Performance
| Glass package | U-Factor | SHGC |
|---|---|---|
| Advanced Low-E impact-resistant laminated IG | 0.4 | 0.37 |
| Turtle Glass Low-E impact-resistant laminated IG | 0.4 | 0.37 |
| SunDefense Low-E impact-resistant laminated IG | 0.4 | 0.37 |
Performance Certifications
Energy-performance data on file (manufacturer-published; not third-party certified).
- FL17792
- FL17235
Options
Ready to install the Pella Defender Vinyl Single Hung?
Armor Pro measures, permits, and installs it across South Florida — code-compliant and warrantied. Get a free, no-obligation estimate.
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Frequently Asked Questions
The Defender Single Hung is Pella's commercial-grade vinyl impact single-hung window, built on the CWS-6100 platform in Ocala, Florida. It has a fixed upper sash and an operable lower sash, and that lower sash tilts inward so you can clean the exterior glass from inside. We install it for multi-family and light-commercial residential projects across coastal Florida.
Yes. On the Defender Single Hung the operable lower sash tilts inward, so you can clean the outside of the glass from inside your home, which is especially useful on upper floors. The unit also comes with an InView flat fiberglass screen and an AutoLock latch in white or bronze.
No. The Defender Single Hung carries an LMI impact rating under Florida Product Approvals FL17235 and FL17792, which cover coastal Florida outside the Miami-Dade and Broward High Velocity Hurricane Zone. We install it throughout the rest of South Florida's coastal areas, and if your address is inside the HVHZ we'll recommend an NOA-approved Pella line and confirm the correct product at your quote.
The Defender Single Hung runs from a minimum of 17-7/8 by 24-3/4 inches up to a maximum of 53-1/8 inches wide by 76 inches tall, rated at +58/-58 psf design pressure. It also tests at 0.3 cfm/ft² air infiltration and 6 to 8.25 psf water resistance. We measure each opening and confirm the design pressure your installation requires before ordering.
With its impact-resistant laminated insulated glass, the Defender Single Hung reaches a U-factor as low as 0.25 and an SHGC as low as 0.13 depending on the package. The Advanced, SunDefense, and Turtle Glass Low-E packages each rate around U 0.40 and SHGC 0.37, and the Turtle Glass option helps you meet coastal sea-turtle lighting requirements. We'll match the glass to your exposure and any local code at quote.
The Defender Single Hung comes in white interior/white exterior, bronze interior/bronze exterior, or white interior with a bronze exterior. Grilles-between-the-glass are offered in 3/4-inch or 1-inch contour and 5/8-inch flat profiles, plus a 7/8-inch exterior-applied grille combined with 1-inch contour grilles. Installed pricing depends on size, glass package, and the opening, so Armor Pro provides a free estimate.
No. Defender is impact-rated vinyl, but it carries Florida state-level product approvals rather than a Miami-Dade NOA, so it is for Florida coastal work outside the High Velocity Hurricane Zone. That covers the large band of the state that requires impact glazing but not a full HVHZ approval, such as the Treasure Coast and Gulf Coast counties. For HVHZ multi-family or residential work, the product moves to an HVHZ-certified line such as HurricaneShield. We confirm which approval your county requires before specifying it.
Both are Pella vinyl impact lines built in Ocala on a related platform, but they're aimed at different jobs. Defender is the commercial-grade line, channeled toward multi-family and light-commercial buildings, with a heavier frame and light-commercial AAMA performance grades, but it stops short of HVHZ approval. HurricaneShield is the residential line and is the one carrying the Miami-Dade and Broward HVHZ certification. For a single-family hurricane-zone home we use HurricaneShield; Defender is for buildings rather than houses, outside the HVHZ.
Pella Corporation is a family-owned national manufacturer headquartered in Pella, Iowa, founded in 1925 and now spanning more than 20 plants across the country. For the Florida hurricane market the important detail is that Pella's impact lines, HurricaneShield and Defender, are built in Ocala, Florida by Pella's CWS subsidiary, so the storm products are made in-state rather than shipped in. We install and service Pella across South Florida and handle the order, permit, and installation regardless of which plant a given product comes from.