AIA Northern Virginia
Light Frame Construction and Energy Efficient Building Envelope
May 25

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

Organized by the Small Firms Committee and offered courtesy of TW Perry.

Shear Walls and Lateral Bracing in Light Frame Construction
Presented by Mike Wolfe of Simpson Strong-Tie

This presentation offers designers the insight needed to set realistic client expectations when discussing the relationship between structural requirements and design possibilities. Participants will investigate the impact of wind and seismic loading on light frame structures, and how these forces are resisted in a structure. Selection criteria and the pros and cons of prescriptive vs. performance based (engineered design) solutions will be discussed. Additionally, participants will evaluate three code-approved pre-manufactured wall bracing equivalents that allow designers to maintain design flexibility while meeting code requirements.

• Describe how wind and seismic forces are resisted in a structure, and the impact of design on a structure’s ability to resist these forces
• Determine when prescriptive site-built, prescriptive pre-manufactured equivalents or engineered solutions can be used to meet code mandated structural requirements
• Select from among three pre-fabricated, code approved space saving braced wall equivalents when structural requirements surpass the capabilities or prescriptive wall bracing
• Implement a best practices design methodology that identifies potential conflicts between design and structural requirement early in the design process, and evaluate options for integrating design with structure

Building Envelope Technologies for Energy Efficient Designs
Presented by Bill Maisel of Huber Engineered Woods

This session provides an overview of present Energy Conservation Codes and Standards with emphasis on those sections affecting building envelope performance. Specific focus will be placed on air barrier technologies and components including a review of traditional methods/shortcomings and how air leakage affects thermal performance in typical wood-framed construction. Study will primarily focus on wall applications examining two approaches to improve energy efficiency and also introduce and compare three alternative product solutions to improve the building envelope.

• Identify three Energy Codes or Standards used in the U.S.
• Identify two concerns that impact the energy efficiency performance of the building envelope
• Discuss reducing air leakage and thermal bridging in the building envelope using 2 methods
• Define two alternatives to energy-efficient wall sheathing solutions

2 HSW LUs. Lunch provided courtesy of Simpson Strong-Tie and Huber Engineered Woods. $8 to attend, reservations required due to limited seating.