Pella Impervia Fixed Frame Windows

Pella® Impervia® Fixed Frame Window

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2D Cross Section
(Fiberglass Window / Patio Door)
2D Elevation
(Fiberglass Window / Patio Door)
3D BIM
(Fiberglass Window / Patio Door)
3D BIM
(Fiberglass Window / Patio Door)
Specifications
(Fiberglass Window / Patio Door)
  • The design flexibility of fixed aluminum glazing systems with significantly improved energy efficiency.
  • Special Shapes are non-Duracast fiberglass resin windows in a wide range of shapes and sizes finished to match Pella Impervia products.
  • Standard and custom sizes up to 11' 11-1/2" x 6' 11-1/2" for 2- and 3-wide; sizes up to 6' 11-1/2" x 11' 11-1/2" for 2- and 3-high.
  • Performance Grade up to PG50.

A local Pella team member is ready to help you with your project.

Installation Guides Warranty Info

Features & Options

Sizes and Shapes Pella Impervia Fixed Frame Window

Sizes

Built-to-order in 1/4" increments.

Rectangles
Special Shapes

Combinations

Add transoms or adjacent windows for flexible combinations.

View window combinations

Design Data

Design data available for egress, vent opening, clear opening, visible glass and frame area.

View design data

Special Shapes


Learn about all Pella Sizes and Shapes

Performance Values Pella Impervia Fixed Frame Window

These windows provide outstanding resistance to air and water infiltration, wind and outside noise while increasing energy efficiency, security and ease of operation.


View performance values
View thermal performance
View sound transmission performance

Optional Foam Insulation

Insulating foam inside the frame further improves energy efficiency.

  • Fixed Frame

  • Special Shapes

Material Pella Impervia Fixed Frame Window

  • Pella Impervia windows are made from Pella's patented five-layer, engineered Duracast® fiberglass composite.
  • A fiberglass composite sharing the same properties of strength, durability and temperature resistance as materials used in the aerospace industry.
  • Allows Pella Impervia products to withstand extreme conditions better than windows made from other materials.
  • Highly stable material won't expand, warp or sag in summer heat, or shrink and turn brittle in harsh winter conditions.
Duracast®
Fiberglass Composite
Conventional Fiberglass
Aluminum with
Thermal Break
Nonreinforced Vinyl

Material Comparison

Strength Excellent
Nine times stronger than vinyl and twice as strong as aluminum.*
Very Good Very Good Fair
Hot/Cold Performance Excellent
Withstands heat up to 200° F and cold down to -40° F.
Excellent Excellent Fair
Thermal Expansion Excellent
Low expansion and contraction rate assures consistent, weathertight seal between sash and frame.
Excellent Fair Fair
Impact Resistance Excellent
Withstands impacts without deformation.
Good Good Fair

*In testing performed in accordance with ASTM testing standards, Pella's Duracast fiberglass composite has displayed superior performance in strength, ability to withstand extreme heat and cold, and resistance to dents and scratches.

Energy Efficiency

  • Unlike aluminum, which is a natural conductor, Duracast fiberglass composite offers excellent insulating properties and exceptional energy efficiency.
  • The U-Factor of the Duracast frame is 2.4 times better than thermally broken aluminum.
  • When compared to thermally broken aluminum, Duracast fiberglass composite offers greater resistance to condensation and superior thermal comfort to those seated near windows.

Thermal Expansion

  • Unlike vinyl or aluminum, Duracast fiberglass composite offers low expansion and contraction rates that help ensure a consistent bond between sash and glass and a weathertight fit between sash and frame.
  • Duracast withstands extreme heat (up to 200 F) without warping, sagging or softening even in dark colors.
  • Duracast withstands extreme cold (as low as -40 F), unlike vinyl, which can become brittle in extreme cold.

Impact Resistance

  • Duracast fiberglass composite withstands major impacts without deformation, especially in cold weather.

Durable Finish

  • Duracast features a low-maintenance, factory-applied powder-coat finish that resists chalking and fading even in dark colors.

Special Shape Material

  • Pella fiberglass Special Shape fixed frame windows are made of a fiberglass resin (non-Duracast material), which provides excellent strength and thermal properties.

Learn about all Pella Materials

Interior Finishes Pella Impervia Fixed Frame Window


Pella Impervia fixed frame windows feature a low-maintenance, factory-applied powder-coat paint finish in White, Tan, Morning Sky Gray, Brown or Black.

  • White

  • Tan

  • Morning Sky Gray

  • Brown

  • Black

Special Shape Window Interior Finishes

Prefinished to match Pella Impervia fixed frame windows, the finish provides excellent UV protection to help durability and long-lasting performance.


Learn about all Pella Interior Finishes

Exterior Finishes Pella Impervia Fixed Frame Window

  • Pella Impervia fixed frame windows feature a low-maintenance, factory-applied powder-coat paint finish.
  • Resists chalking and fading even in dark colors.
  • Available in White, Tan, Morning Sky Gray, Brown or Black. And Pella's dual-color option provides more style and design flexibility the products offer a White interior with the choice of a Tan, Morning Sky Gray, Brown or Black exterior.
  • White

  • Tan

  • Morning Sky Gray

  • Brown

  • Black

Special Shape Window Exterior Finishes

Prefinished to match Pella Impervia fixed frame windows, the finish provides excellent UV protection to help durability and long-lasting performance.


Learn about all Pella Exterior Finishes

Glazing Pella Impervia Fixed Frame Window

  • Fixed Frame

Unlike aluminum systems that are glazed in the field, fixed frames are glazed in a controlled factory environment maximizing quality while reducing field installation time.

A variety of insulating glass options are available for optimal design, performance and budget flexibility.

  • Special Shape

Insulating glass options include:

  • Advanced Low-E with argon*
  • SunDefense Low-E with argon*
  • NaturalSun Low-E with argon*
  • Advanced Comfort
  • Clear
  • Obscure
  • Tempered

Pella's Low-E glass options reduce the transmission of solar heat gain and ultraviolet light while allowing the transmission of visible light.


View thermal performance for this unit

1Optional high-altitude Low-E insulating glass may not contain argon in most products.



Learn about all Pella Glass Options

Grilles Pella Impervia Fixed Frame Window

Pella Impervia fixed frame windows are available with color-matched Simulated-Divided-Light grilles or grilles-between-the-glass in a variety of patterns.

  • Grilles-between-the-glass are permanent aluminum grilles that are factory installed between the panes of glass to provide easy cleaning.
  • Simulated-Divided-Light grilles are extruded aluminum and adhered to the interior and exterior glass.
  • Grilles-between-the-glass

  • Removable Interior Grilles

Grilles-between-the-glass

  • Permanent aluminum grilles are factory-installed inside the airspace of insulating glass to provide the look of divided lights while making glass cleaning easy
  • Grilles are 3/4" wide.
  • Color matches frame.
  • Multiple grille patterns are available.

Grille Profiles

  • 3/4" width

Grille Patterns

  • Traditional

  • 9-Lite Prairie

  • Top Row

Special Shapes

Traditional, Sunburst and Starburst patterns

Grille Interior Colors

  • White

  • Tan*

  • Brown*

  • Ivory

  • Harvest

  • Cordovan

  • Brickstone

  • Exterior finish matches aluminum-cladding color.
  • White, Tan*, Brown*, Ivory, Harvest, Cordovan or Brickstone interior.
  • Grilles are 3/4" wide.

Simulated-Divided-Light grilles

Available as optional on fixed frame windows but not on Special Shapes. Extruded aluminum grilles are adhered to both sides of the insulating glass to provide the look of aluminum storefront.

  • Color matches frame.
  • 1-5/8" applied grilles match the frame in size and color to offer the look of aluminum storefront.
  • Multiple grille patterns are available.
  • Available factory-assembled in sizes up to 50 sq. ft(maximum of 9' 4" wide or 9' 4" high).

Grille Profiles

  • 1-5/8" width

Grille Patterns

Learn about all Pella Grille Options

Hardware Pella Impervia Fixed Frame Window

Hardware is not used on fixed frame windows.

.

Screens Pella Impervia Fixed Frame Window

Screens are not needed on fixed frame windows.

Case Studies & Projects
For Pella® Impervia® Fixed Frame Window
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