Pella Impervia Composite Sliding Patio Door

Pella Impervia Composite Sliding Patio Door

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  • In-home consultation
  • Dedicated project manager
  • Removal & disposal
  • Lifetime warranty
  • 20 year workmanship guarantee
  • Financing available

About the Pella Impervia Composite Sliding Patio Door

Sliding doors are often the largest window in the house, and the last to be replaced. The Pella composite patio door can be ordered with different configurations and with either two, three, or four panels. It has many standard sizes and custom sizes to fit virtually any opening.
The Pella Impervia Series fiberglass composite sliding patio door delivers the quality look of a painted wood window, superior durability, low maintenance, and incredible energy efficiency.


The Pella Impervia Series fiberglass composite sliding patio door comes in a variety of configurations. We automatically include the ENERGY STAR® qualified glazing upgrade with Dual Low-E coating and Argon gas. Other features include:

  • Made from Duracast material, Pella’s five-layer engineered fiberglass composite, which withstands extreme heat and cold
  • Features durable, low maintenance power-coat finish for look of painted wood. Available in white, tan, morning sky grey, brown or black with optional dual-color frame of white interior and colored exterior
  • Extra durable tandem nylon rollers for smooth, easy operation
  • Includes heavy duty screen with retractable screen upgrade that disappears when you don’t need them, allowing more light into your room
  • Has multipoint locking system and exterior keylock option for extra security
  • Comes with color matched patio door handle, also available in chrome, bright brass, antique brass, satin nickel, and oil-rubbed bronze
  • Available in a variety of patterns with 3/4” contour GBG (grids between the glass) grids.
  • Option for blinds or shades between the glass
  • Lifetime limited non-transferrable manufacturers warranty on unit and mechanical parts with a 20-year transferable warranty for the insulated glass
U-factor indicates how well a product prevents heat from escaping.

The lower the number, the better. To meet Energy Star requirements, patio doors must have a u-factor at or below 0.27.

U factor


Thermal performance is a rating on a scale of 4 of the overall energy performance of the product.

Thermal Performance


Visible transmittance refers to how much visible light comes through the product.

The higher the number, the more light is transmitted. VT values typically range from 0.30 to 0.70.

Visible Transmittance


Solar heat gain coefficient measures how well a product blocks heat caused by sunlight.

The lower the number, the more it will help reduce the use of air conditioning and energy use. In cold climates, a higher SHGC is desirable to collect heat from sunlight. SHGC typically ranges from 0.25 to 0.80.

Solar Heat Gain Coefficient