AIA Northern Virginia
Lead Image
The Chapter House is temporarily closed, but all member services are available by emailing

Fiberglass Windows for Commercial Buildings + Window Solutions for Historic Buildings
September 14

At the Chapter House, 1101 Duke Street, Alexandria, VA 22314.

Two seminars presented by K.C. Company – Pella: Fiberglass Window Installation Systems for Commercial Buildings and Window Solutions for Historic Buildings.

Fiberglass Window Installation Systems for Commercial Buildings

Selecting a window system for use in new or renovated commercial and institutional buildings has typically centered on aluminum, steel, aluminum-clad wood, or vinyl windows. In the last five years, however, another choice has gained popularity for a lot of good reasons. Sustainable fiberglass window systems are being specified and installed more and more in retail facilities, offices, schools, colleges, condominiums, apartments and many other buildings. They are well suited for a variety of different design applications whether horizontal, vertical, or punched window looks are sought. Their installation methods are numerous and suited to a variety of building construction types for both new and existing construction. Regardless of the design intent or installation method used, designing and specifying fiberglass windows into commercial, institutional, and multi-family buildings, yields broad design choices, excellent energy efficiency, resistance to rain and wind, and lasting durability.

Learning Objectives:
• Identify and recognize the sustainable attributes and features of current fiberglass window technology.
• Determine beneficial and sustainable choices in creating window design patterns and sizes that contribute to daylight, views, and occupant comfort.
• Investigate the design considerations for the safe use of sustainable fiberglass window and doors in different opening types in commercial and institutional buildings, including punched openings, horizontal ribbons, vertical stacks, and storefront applications.
• Specify and design appropriate window installation details for new construction and renovation projects that meet human safety and welfare requirements while contributing to an energy efficient building envelope.

Window Solutions for Historic Buildings

We often think of building projects as new construction. However, the reality is that in any given year, there are typically more building renovation and rehabilitation projects undertaken by owners than there are new construction projects. Only a small percentage of these existing building projects fall in the category of “historic” with the associated public programs and design restrictions that go along with that designation. The majority are motivated by changing owner needs, energy concerns, maintenance considerations, and general modernization or upgrade requirements. In all of these cases, windows are often a topic of interest and concern. Should they be replaced or can they be repaired? If they are replaced, what are the options? Which option is best for a particular situation? Understanding how to answer these questions gives architects the ability to work with their clients to make informed decisions and improve the overall outcome of projects.

Learning Objectives:
• Discuss the historic significance of existing windows in buildings, including their historic role in providing natural daylight and ventilation for buildings.
• List the National Park Service's guidelines for historic window rehabilitation and describe how they contribute to a sustainable building rehabilitation.
• Design a window rehabilitation plan for buildings that includes recommendations for preservation, maintenance, repair, replacement where needed, design for missing historic features, alterations/additions, and energy retrofitting.
• Evaluate window replacement options for existing commercial and institutional buildings, including an assessment of how each option addresses structural performance, daylighting, natural ventilation, noise control, energy efficiency, cost, code requirements, and lead abatement.

 $10 AIA members and students; $20 for non-members. Lunch is provided courtesy of K.C. Company – Pella.

Organized by the Small Firms Committee.