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High Performance ProductsSingle Hungs

Single HungAlpen high performance single hung windows combine state of the art performance with a clean, classic style. Highly engineered tubular frame profiles make this commercially-rated window suitable for high rise buildings and single family residences alike.

With a single vertically sliding lower sash and direct-set glass light above, Alpen’s single hung windows are more airtight. Upper fixed glass set in slim, modern frame to maximize views and daylight.

 

Alpen’s advanced suspended film insulating glass uniquely enables Alpen to set triple-pane insulating glass into vertically sliding windows, giving Alpen an edge over competition with full-window NFRC ratings of R-5 (U-0.20) and better.

Using film instead of a third layer of glass creates a lightweight, triple-pane glazing unit, making single hungs easy to operate, even in very large sizes.

Other features of our Single Hung windows include:

  • Tilt-in sash for easy cleaning
  • Custom sizes built to order with no extra lead-time or cost
  • Window sizes up to 48″ x 72″
  • Good for retrofit where window opening sizes vary and for egress in bedrooms
  • Constant force balances easily handle large sashes
  • Zinc die-cast sweep locks and optional lift-handles secured with durable internal backer plates
  • Twin weatherstripping and direct-set upper glass design engineered for extremely tight air- and water-seals, even in high design load conditions
  • Popular choice for multifamily buildings where venting windows cannot invade indoor or outdoor living spaces

625 Putnam

Painted Finishes:

Alpen factory finishes are specially blended for excellent adhesion, abrasion resistance and hardness on fiberglass materials, ensuring Alpen windows will maintain a long-lasting beautiful finish.

Alpen double hung fiberglass windows are available in 5 beautiful, durable colors, or any custom color or split finish/two tone combinations.

Alpen Paint Colors DH-SH-XO

 

 

 

Alpen’s use of a weightless center pane to create triple-pane performance allows us the unique advantage of having higher interior glass surface temperatures during NFRC design “winter” conditions.  Higher interior glass surface temperature means less condensation and more comfort.

Heat Mirror Technology

 

Performance Options:

Alpen’s single hung windows are available in multiple performance series glass options, in low and high solar heat gain configurations.

After creating hundreds of industry-leading performance glass configurations, we’ve selected our most popular high and low solar heat gain glass types for use in our standard window lines.

Click here for new NFRC Certified performance data for all of our window and glass options.

 

Obscure Glass Options:

Obscure glass

Hardware

Attractive zinc die-cast sweep locks and optional lift handles provide durability, easy of use and style.

Locks and lift handles available in 5 beautiful painted finishes and 3 decorative metal upgrade options:

Alpen Hardware Colors DH-SH-XO

Simulated Divided Light Grids

Simulated divided lights create classic style without sacrifice of thermal efficiency.  Choose from 3 grid profiles and dozens of customizable patterns.  Grids are painted to match window frame or in color of your choice.

Aluminum Exterior Extrusions and Brickmolds

Willard Hotel4