Pella® Impervia® Fiberglass Sliding Window
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Engineered to last, Pella Impervia sliding windows glide open and closed horizontally for easy operation.61 Featuring an up-to-date color palette, including Black, we offer interior and exterior color options to achieve your unique style. They provide outstanding resistance to water, wind and outside noises — while delivering energy efficiency, security and ease of operation.
Impervia Sliding Window Features
Why Fiberglass?
- Superior strength with our proprietary fiberglass material61
- Rot- and corrosion-free
- Tested for the extremes and suitable for all climates
- Heavy-duty powder-coat finish, including Black
Enhancements
- Resist air and water infiltration with an interlocking checkrail and weep system
- Designed with a double-roller system for smooth, long-lasting operation
- Corner locks, metal fasteners and injected sealant for added strength, durability and reliable water performance
- Sleek profiles and more glass allow for bold, modern designs in an up-to-date color palette, including Black
Inside Pella Fiberglass
Pella Impervia windows are created from our exclusive fiberglass formula. A structural mat places rovings in a specific, intricate order to meet our high strength standards. Additional layers of strategically placed rovings are added, then the materials are pulled through a machine, injected with polymer resin and heated. It creates an entirely new, thermoset material which won't break down when exposed to the elements or lose its shape in extreme heat — unlike other materials.
For the Pros
Pella Impervia Sliding Window Specs & Install Details
- Made from the strongest material for windows, our proprietary fiberglass material61
- Tested from -40ºF to 180ºF
- Two- and three-panel options with equal vent, 1/3 and 1/4 vent
- Two-panel sliding windows available in sizes up to 71-1/2” x 71-1/2”
- Three-panel sliding windows available in sizes up to 107-1/2” x 71-1/2”
- Performance class and grade LC30-LC50
Product Downloads
Options for Pella Impervia Sliding Windows
Choosing Your Window
Combinations
Make a design statement with window combinations. Additional combinations are available. See your Pella sales representative for the complete offering.
For Pros
Combination Design Considerations
- Save time on your remodel of new construction project with factory-mulled combinations.
- Combination assembly options include integral mullion, tight mullion, 1/2” structural mullion or 1” structural mullion with additional steel reinforcements available.
- Designed and tested to ASTM E330 for structural test pressures up to 75PSF (DP50).
Frame Finishes
Pella Impervia fiberglass products have a long-lasting factory powder-coat finish in your choice of five colors plus dual-color frame options. Learn more about finishes.
Black
For Pros
Materials
- Pella Impervia windows are made from our proprietary fiberglass material, the strongest material for windows, engineered for lasting durability.61
- With relentless strength and long-lasting durability, Pella’s proprietary fiberglass helps ensure less maintenance with fewer callbacks.
- Our long-lasting powder-coat finish meets AAMA 624 which is the highest rated fiberglass coating among leading national competitors.
- Exclusive thermoset material won't expand, warp or sag in summer heat, or shrink and turn brittle in harsh winter conditions.
Styling Your Window
Hardware
Pella's cam-action locks are available in today's most popular finishes.
White
For Pros
Hardware
These windows are available with a range of hardware options and finishes to meet most design objectives and budgetary requirements.
- Surface-mounted sash locks.
- Color-matched or optional finishes.
- Nylon roller housings and metal rollers.
Grille Patterns
Grilles give the appearance of individual window panes. Pella offers many grille patterns to help enhance your home's architectural style.
Prairie
Grille Profiles
Grilles-between-the-glass create the classic look of individual windowpanes. Learn more about grille profiles.
3/4" Grilles-Between-the-Glass
Window Enhancements
Screens
Flat Screens
Conventional fiberglass screens come standard.
Pella InView™ screens let in 14% more light and are 8% more open for improved airflow compared to conventional fiberglass screens.5
