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Tour (Virtually) a Contemporary 2-Story Addition & Whole-House Renovation in Tenley Town, DC

Discover the details of this recently completed, 2-story rear addition and whole-house renovation project in this virtual tour of a 1950’s Washington, DC house.

12/01/2020 | [email protected] 

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TW Perry to be Acquired by BMC

TW Perry is pleased to announce that it has entered into an asset purchase agreement to be acquired by BMC.

11/30/2020 | [email protected] 

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Safe Environments Pilot Program

Connected DMV, a charitable 501(c)(3) organization that works with regional organizations across the DMV, has kicked off a Safe Environments pilot program in order to instill public confidence in the health and safety of where we live, work and play.

11/30/2020 | [email protected] 

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Window Solutions for Historic Buildings

May 26, 2020
12:00 PM - 1:00 PM
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Course Description:

We often thing 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:

  1. Discuss the historic significance of existing windows in buildings, including their historic role in providing natural daylight and ventilation for buildings.
  2. List the National Park Service's guidelines for historic window rehabilitation and describe how they contribute to a sustainable building rehabilitation.
  3. 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.
  4. 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.


Presented by Pella Mid-Atlantic, an Annual Partner of AIA Potomac Valley




Ernest Maier











TW Perry















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