High Performing Buildings - Fall 2010 - (Page 12)

© david Wakely direct morning sunlight hits the window, a photocell tuned to control the glass on detection of direct sunlight automatically reduces the transmission of the glass from 62% down to 3.5%, greatly reducing glare and increasing visual comfort. The glass controls light at the outer pane, effectively keeping solar energy use heat gain from entering the building and reducing the summer cooling load. This technology was expensive, but its cost has decreased, and it was selected as a demonstration element, since it could be a widely used strategy in the near future. As part of its ongoing post-occupancy research efforts to maximize replacing the parking lot with drought tolerant landscaping reduces the heat island effect and irrigation needs. inset the 1960s-era building originally was a neighborhood bank branch. i d e A s o F F i c e V s . s tA n d A r d u . s . o F F i c e lighting Plug load HVAC standard office data source: u.s. energy information Administration the performance and comfort of the building, IDeAs has experimented with various types of sunlight control concepts to manage direct-beam sunlight entering through the skylights during summer months. One approach has involved installing prismatic acrylic diffusing panels on the outside of skylights in spring and removing them in autumn. The panels diffuse the intense, focused beams of light characteristic of summer sunlight to a softer, more dispersed light. The slight reduction in daylighting from adding the panels is acceptable in the summer when the building interior is actually over-lit, 12 HigH Performing Buildings fa l l 2 0 1 0

Table of Contents for the Digital Edition of High Performing Buildings - Fall 2010

High Performing Buildings - Fall 2010
Table of Contents
IDeAs Z2 Design Facility
Lighting Design Alliance
Manassas Park Elementary School and Prekindergarten
FC Gulf Freeway Office Building
Capturing Condensate
National Australian Built Environment Rating System
Tyson Living Learning Center

High Performing Buildings - Fall 2010