Pella Impervia Awning Windows

Pella® Impervia® Awning Window

  • Made with Pella's patented Duracast® fiberglass composite material.
  • Standard awnings in operable sizes up to 4' 5-1/2" x 2' 5-1/2".
  • Large awnings in operable sizes up to 4' 11-1/2" x 4' 11-1/2".
  • Performance Grade up to PG50.
  • Limited opening hardware available.

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

Installation Guides Warranty Info

Features & Options

Sizes and Shapes Pella Impervia Awning Window

Sizes

Built-to-order in 1/4" increments

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Combinations

Add transoms or adjacent windows for flexible combinations.

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Design Data

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

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Sizes

Standard awnings are available in operable sizes up to 4' 5-1/2" wide x 2' 5-1/2" high. The operator is at the jamb, and the locking system is at the sill.


Large awnings are available in operable sizes up to 4' 11-1/2" wide x 4' 11-1/2" high. The operator is at the sill, and the locking system is at the jambs.

Shapes


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Performance Values Pella Impervia Awning Window

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


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View thermal performance
View sound transmission performance

Optional Foam Insulation

Insulating foam inside the sash further improves energy efficiency.

NOTE: Optional foam insulation represented by shaded area.

Material Pella Impervia Awning 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
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 fiberglass composite 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 fiberglass composite withstands extreme heat (up to 200° F) without warping, sagging or softening even in dark colors.
  • Duracast fiberglass composite 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.

Learn about all Pella Materials

Interior Finishes Pella Impervia Awning Window


Pella Impervia awning 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


Learn about all Pella Interior Finishes

Exterior Finishes Pella Impervia Awning Window

  • Pella Impervia awning 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


Learn about all Pella Exterior Finishes

Glazing Pella Impervia Awning Window

Pella Impervia awning windows are available with a variety of insulating glass options for optimal design, performance and budget flexibility.

Insulating glass options include:

  • Advanced Low-E with argon*
  • SunDefense Low-E with argon*
  • NaturalSun Low-E with argon*
  • 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

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


Learn about all Pella Glass Options

Grilles Pella Impervia Awning Window

Pella Impervia awning windows offer grilles-between-the-glass that match the frame color and include a variety of grille patterns.

Grilles-between-the-glass

  • Aluminum grilles with 3/4" contour are permanently sealed between the panes of insulating glass.
  • Finish is color-matched to interior and exterior frame color.

Grille Profiles

  • 3/4" width

Grille Patterns

  • Traditional

  • Prairie

  • Top Row

  • Custom

  • No Grille

Learn about all Pella Grille Options

Hardware Pella Impervia Awning Window

These windows are available with a range of hardware options and finishes to meet most design objectives and budgetary requirements.

  • Integrated crank with fold-away handle.
  • Patented Unison Lock System.
  • Stainless-steel operating arms and hinges.
  • Optional limited opening hardware.
  • Color-matched or optional finishes.

Essential Collection

Fold-Away Crank

  • White

  • Tan

  • Morning Sky Gray

  • Brown

  • Black

  • Bright Brass

  • Satin Nickel

  • Oil-Rubbed Bronze

Integrated Crank with Fold-Away Handle

  • Improves operation and aesthetics and won't interfere with roomside window treatments standard feature on all Pella awning windows.
  • Standard lock hardware is finished in White, Tan, Morning Sky Gray, Brown or Black to match the window color.
  • Additional color options: Bright Brass, Satin Nickel and Oil-Rubbed Bronze.
  • For operable awnings over 2' 5-1/2 " in height, the crank is at the sill.

SureLock® Unison Lock System

  • This patented locking system reaches out to pull the sash against the weatherstripping to form a tight seal. A concealed linkage secures multiple locks with a single easy-to-reach handle. For operable awnings over 2' 5-1/2" in height, the Unison Lock System is at the jambs.
  • Standard awning: one lock installed on units less than 29" wide, two unison operating locks installed on units over 29" wide.
  • Large awning: one installed on units with frame heights 41" and less, two unison operating locks installed on units over 41" frame height.

Roto-Operator Assembly

Stainless-steel operator linkage, hinge slide and hinge arms resist rust and corrosion and ensure years of dependable performance.

Easy Wash

With the easy-wash feature, the sash moves toward the center of the frame, allowing exterior glass to be cleaned from inside, reducing maintenance costs.


Learn about all Pella Hardware Options

Screens Pella Impervia Awning Window1

Full screens with conventional fiberglass screen cloth are optional for Pella Impervia awning windows. InView high-transparency screen fabric is available as an option.

InView Screen

  • Available as an optional upgrade on Pella Impervia windows.
  • Allows in 14% more daylight and 8% more airflow than a conventional fiberglass screen.2
  • Made from a screen material that's more transparent than conventional fiberglass screens.

1Warning: Use caution when children or pets are around open windows and doors. Screens are not designed to retain children or pets.

2Screen cloth airflow is based on calculated screen cloth openness. Screen cloth transmittance was measured using an integrated sphere spectrophotometer.


Learn about all Pella Screen Options
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