176 Series Bertha
Impact Rating LMI
Design Pressure +70/-85 psf
NFRC Certified
Made in Florida
EAS 176 Bertha Single Hung Impact Vinyl
EAS's flagship HVHZ vinyl impact window line with lifetime frame and glass warranty.
Flagship HVHZ vinyl single-hung impact window rated to 120 psf positive and negative. The highest design-pressure SH in the EAS vinyl portfolio.
Impact Rating LMI
Design Pressure +70/-85 psf
NFRC Certified
Made in Florida
Frame finish
White
Desert Sand
Custom
Impact protection, built for South Florida
The 176 SH Bertha is EAS's flagship HVHZ-rated single-hung impact window in the vinyl portfolio. Rated to 120 psf positive and negative design pressure with LMI impact certification, suited for South Florida coastal residential replacement projects.
- 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 Patterns
Grille Styles
Grids Between Glass (GBG)Simulated Divided Light (SDL)
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
54 x 77 in or 53 x 75 in
Design Pressure
+70/-85 psf
U-Factor
0.3–0.46
SHGC
0.17–0.58
Visible Trans.
0.15–0.62
Sizes & Pressures
| Configuration | Max size | Design pressure |
|---|---|---|
| Single hung — HVHZ impact (box) | 54 x 77 in or 53 x 75 in | +70/-85 psf |
| Single hung — non-impact | 54 x 77 in | +70/-85 psf |
Fin & Flange (box).
Oriel w/PVB.
Non-impact.
Glass & Energy Performance
| Glass package | U-Factor | SHGC | VT |
|---|---|---|---|
| Clear / arg90 / clear (5mm/5mm) - 1" IG | 0.44 | 0.56 | 0.62 |
| E366 / arg90 / clear (5mm/5mm) - 1" IG | 0.3 | 0.21 | 0.49 |
| E366 / arg90 / gray (5mm/5mm) - 1" IG | 0.3 | 0.2 | 0.28 |
| E340 / arg90 / clear (5mm/5mm) - 1" IG | 0.3 | 0.14 | 0.29 |
| Clear / arg90 / lami (5mm/DS|090SGP|DS) - 1" IG (SGP) | 0.43 | 0.54 | 0.61 |
| E366 / arg90 / lami (5mm/DS|090SGP|DS) - 1" IG (SGP) | 0.28 | 0.21 | 0.48 |
| E366 / arg90 / lami (5mm/gray-DS|090SGP|DS) - 1" IG (SGP) | 0.28 | 0.21 | 0.32 |
| E340 / arg90 / lami (5mm/DS|090SGP|DS) - 1" IG (SGP) | 0.28 | 0.14 | 0.29 |
| Clear / arg90 / lami (DS/DS|090PVB|DS) - 1" IG (PVB) | 0.43 | 0.55 | 0.61 |
| E366 / arg90 / lami (DS/DS|090PVB|DS) - 1" IG (PVB) | 0.29 | 0.21 | 0.49 |
| E366 / arg90 / lami (DS/gray-DS|090PVB|DS) - 1" IG (PVB) | 0.29 | 0.2 | 0.24 |
| E340 / arg90 / lami (DS/DS|090PVB|DS) - 1" IG (PVB) | 0.29 | 0.14 | 0.29 |
U-Factor / SHGC shown without grids; add-grid values vary slightly. Confirm exact ratings for your opening at quote.
Performance Certifications
Options
Related Products
More models in the 176 Series Bertha.
Ready to install the EAS 176 Bertha Single Hung Impact Vinyl?
Armor Pro measures, permits, and installs it across South Florida — code-compliant and warrantied. Get a free, no-obligation estimate.
Comparable from Other Brands
Other single hung models Armor Pro installs.
Frequently Asked Questions
The 176 SH Bertha is Eastern Architectural Systems' flagship HVHZ-rated vinyl single-hung impact window, where the bottom sash slides up while the top sash stays fixed. We install it as the workhorse window across South Florida coastal replacement projects, from bedrooms to common rooms, because it's the highest design-pressure single-hung in EAS's vinyl portfolio. It carries a lifetime warranty on both the vinyl frame and the insulated glass.
Yes. The 176 SH Bertha is offered both as an HVHZ impact (box) configuration and as a non-impact single hung, each available up to 54 by 77 inches. For Miami-Dade and Broward homes that require impact glazing, we install the impact version, which is LMI-rated and HVHZ-approved. We'll confirm which version your jurisdiction and opening require at quote.
The 176 SH Bertha builds up to 54 inches wide by 77 inches tall, which covers most standard residential window openings. The single-hung roller configuration carries a design pressure of +70/-85 psf at that size. We measure your rough opening and confirm the buildable size with EAS before ordering.
The 176 SH Bertha comes standard with coil pack balancers and an integral lift rail, so the sash raises smoothly and holds its position. It also includes a tilt sash for cleaning the exterior glass from inside, plus a weeped saddleback sill system that channels water back out of the frame. These are all standard features, not upcharges.
With a Low-E laminated glass package the 176 SH Bertha reaches a U-factor as low as 0.28 and a SHGC as low as 0.14 using the E340 laminated option, which blocks a large share of solar heat gain. The E366 gray laminated package pairs a 0.28 U-factor with lower visible transmittance for glare control. We help you match the glass package to your sun exposure and energy goals.
Installed price depends on the size of the opening, the glass package you choose, the finish, and the condition of the existing frame, so we don't quote a flat number. Choosing the impact version and a higher-performing Low-E laminated package will cost more than a smaller standard build. Armor Pro provides a free, no-obligation estimate after measuring your opening.
The 176 Bertha is EAS's flagship vinyl impact window line, built specifically for Florida's hurricane zone on a 3-1/4 inch fusion-welded frame with a 0.070 inch wall thickness. It comes in three operation styles, single hung, horizontal roller, and picture, which cover most of the window openings on a typical home. It is the EAS vinyl line to reach for when you want the highest performance and the strongest warranty in their vinyl catalog.
The single-hung is rated up to 120 psf design pressure, the highest in the EAS vinyl portfolio. The horizontal roller and picture models run lower at their base spec but can be uprated to the same 120 psf with an optional SentryGlas Plus (SGP) glass interlayer, which is stiffer than standard laminated glass. Design pressure is what determines how much wind load a window can take, and the right rating depends on your opening's size and exposure, which we confirm on the quote.
Eastern Architectural Systems (EAS) is a Florida manufacturer based in Fort Myers, with roots in the Eastern Metal Supply family. It builds vinyl and aluminum impact-resistant windows and doors for the Florida residential market, and is the maker of the Bertha impact line. EAS has been part of Cornerstone Building Brands since late 2023, though it still operates under its own brand. We install and service EAS products throughout South Florida.