United States / Build / Pella Impervia casement window with dual-pane glass

Pella Impervia casement window with dual-pane glass

Name: Pella Impervia casement window with dual-pane glass
Brand: Pella Corporation

This is a listed window assembly. Match the model and orientation.

Pella documents an eleven-sixteenths-inch dual-pane insulating-glass configuration sealed and bonded to the Impervia casement sash.

Kind: prescriptive-product. Brand: Pella Corporation. Page reviewed 2026-08-24. JSON (CC BY 4.0)

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Documents for this product

Each link opens the publisher's own copy, so you read the revision they are shipping today.

Spec sheets

Pella® 2026 Architectural Design Manual — Impervia® Casement Windows (size tables, design data, unit sections) — Pella Corporation · PDF
41 pages, the largest window document opened by this lane. Page F-CM-27 is the Size Tables matrix — transoms above, vent and fixed units below — and every unit elevation on it is a rectangle. The page is stamped `Not to scale.`; its printed opening and frame dimensions are numbers, not measurements off the drawing. Free and ungated. Pella indexes every one of these at media.pella.com/professional/adm/Misc/ADM-Links.pdf, which is the best window route the census found and the reason this category's real deliverable is the document library rather than the figure.

CAD drawings

Impervia Casement — Size Table (CAD elevation set) — Pella Corporation · DWG
Listed on the manual's own first page and served free and ungated. Linked, never mirrored; not opened by this lane, and no value on this record comes from it.
Impervia Casement — Cross Section (CAD detail set) — Pella Corporation · DWG
Listed on the manual's own first page and served free and ungated. Linked, never mirrored; not opened by this lane, and no value on this record comes from it.

BIM objects

Impervia Casement — Revit family — Pella Corporation · ZIP
Listed on the manual's own first page and served free and ungated. Linked, never mirrored; not opened by this lane, and no value on this record comes from it.

Documented attributes

Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.

Attribute	Value	Evidence source
Form
Assembly role	exterior window	Pella Impervia mulled casement window details (manufacturer)
Glazing panes	2	Pella Impervia mulled casement window details (manufacturer), How to choose sound-control windows (manufacturer)

Where this product goes

FA Exhibit OPN-100. Openings, named

Published requirement matches

These links are generated from the cited attributes above. They do not decide installation or a project result.

Colorado CWRC multilayered glazing · Colorado jurisdictions adopting CWRC in moderate or high mapped wildfire hazard areas
2018 IWUIC Class 1–2 multilayered glazing · Jurisdictions adopting unamended 2018 IWUIC Chapter 5
2021 IWUIC Class 1–2 multilayered glazing · Jurisdictions adopting unamended 2021 IWUIC Chapter 5
Austin Zone A multilayered glazing · City of Austin Proximity Zone A
IWUIC Class 1–2 multilayered glazing · Jurisdictions adopting unamended 2024 IWUIC Chapter 5
Oregon R327 multilayered glazing · Oregon jurisdictions that adopted ORSC R327
2006 Utah UWUI Class 1–2 multilayered glazing · Utah local compliance agencies adopting the 2006 Utah Wildland-Urban Interface Code

Models named on the listing

Model	Application
Impervia operable casement window
Impervia fixed casement window

Specification notes

Tempered glass is an available option, but the cited page does not state the tempered-pane count for an order. This record therefore matches only the documented multilayered-glazing path.

Can I use this here

Local force

The rule and every matching product for the United States

Requirement constraints (10)

Each table compares this product's documented attributes with one published requirement. The comparison does not change from place to place, so it is printed once.

Oregon R327 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

Austin Zone A multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

California multipane + tempered glazing undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched
Tempered panes	Tempered panes ≥ 1	Not documented	undocumented

IWUIC Class 1–2 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

Colorado CWRC multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

2018 IWUIC Class 1–2 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

2021 IWUIC Class 1–2 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

2006 Utah UWUI Class 1–2 20-minute glazing undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Fire resistance	Fire resistance ≥ 20 min	Not documented	undocumented

2006 Utah UWUI Class 1–2 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

2006 Utah UWUI Class 1–2 tempered glazing undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Tempered panes	Tempered panes ≥ 1	Not documented	undocumented

Sources

Pella Impervia mulled casement window details — Pella Corporation (manufacturer). Accessed 2026-08-24.
How to choose sound-control windows — Pella Corporation (manufacturer). Accessed 2026-08-24.

Pella Impervia casement window with dual-pane glass. FireApproved. https://fireapproved.com/materials/pella-impervia-casement-dual-pane-window/. Last verified 2026-08-24.