Mercer Windows

Our most thermally effiicient window. Cutting edge design and construction make the 325 one of the best high performance windows available. Substantial, tight-sealing Mercer casements and awnings have a unique pressure equalization system that enables them to resist hurricane-force winds and rain. A great choice for coastal or exposed building sites.

• 325 casement, awning and picture have 3/4” or 1" thick double-pane glass.
• Heavy-duty reinforced frames with triple weather-stripped vents.
• Wind resistance rating of 190 miles per hour.
• Roto-crank ventilators allow you to control and direct air flow.
• Triple pane glass option available for extra energy efficiency and savings.
• Interior-mounted screens of fiberglass mesh are nearly transparent.
• Interior screens recess into window frames, and are held by plunger pins.
• Options include corrosion-resistant hardware and fold-away crank handles.
• Remote access roto-operator poles are also available.

< Inside view

COMPARE:
Double pane

800
810
820
325

Triple pane

830

325

RATINGS PERFORMANCE

325 Thermal / Optical Performance*

Glazing Type

“U” Factor

Solar Heat Gain Coefficient

Visible Light Transmittance

Awning
Clear Glass	0.40	0.46	0.49
LoE 272 with Argon	0.28	0.26	0.43
LoE 366 with Argon	0.26	0.17	0.39
Triple Pane 325**	0.18	0.16	0.31

Casement
Clear Glass	0.40	0.46	0.49
LoE 272 with Argon	0.27	0.26	0.43
LoE 366 with Argon	0.26	0.17	0.39

Picture Window Narrow Bar
Clear Glass	0.43	0.64	0.69
LoE 272 with Argon	0.26	0.35	0.61
LoE 366 with Argon	0.26	0.23	0.55

* Cardinal XL Edge Dual Seal Insulated Glass Units without grids.

** Triple Pane- LoE366/Argon/Clear/Argon/LoE272 insulated glass unit. For 59" x 24" awning, 1³/8" overall thickness. No grids.

“U” Factor: The rate of heat flow through a given glazing. The lower the number, the better the insulating quality.

Solar Heat Gain Coefficient: The fraction of direct solar radiation that enters a building through the glass as heat. Lower numbers mean the glazing lets less heat in.

Visible Light Transmittance: Measures the amount of light transmitted through the glass. VLT is expressed as a number between 0 and 1. The higher the VLT, the more light is transmitted.