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Click on the name of any project to see further details regarding the use of this technique, strategy, or technology on the project.
 
Superinsulation
 
  Project County Superinsulation Docs
 1  Offices of Brown Architecture (Now Rosies Plate) Wake A new insulation assembly, equal to R21, was applied to the existing shell walls. R30 (blown-in, recycled cellulose) insulation was added to the roof, an insulated slab at the building perimeter (fully insulated slab at direct gain spaces), and high efficiency HVAC (SEER 16) equipment creates high energy performance.  
 2  Willow Spring Fire Station Wake  
 3  RAFI-USA (Rural Advancement Foundation International-USA) Chatham  
 4  EcoDorm at Warren Wilson College Buncombe SIPs panels were used for all walls and ceiling. Walls: R-24 Ceiling R-38  
 5  Westwood Cohousing Community Buncombe 1” thick sprayed polyurethane foam in all wall cavities to achieve initial insulation and air tightness, plus fiberglass batts. Poly sheets applied to interior surface under sheetrock. Walls 24 R value. Roofs 30-36 R value.  
 6  Enertia Building Systems Demonstration Home Wake In 1981 the National Institute of Standards and Technology constructed six test buildings in Gaithersburg, Maryland and tested them for energy efficiency. Much to their surprise, Building 5, with walls made of solid wood, was the most energy efficient. This was attributed to “thermal inertia,” a phenomenon where the solid wood walls stored energy during the day, and released it during the night (National Institute of Standards & Technology publication# BR-B 320; free publication. ) Note from the Solar Center Staff: Please note that many advances in building envelope technology have been made since 1981. Oakridge National Laboratory maintains a website which, although imperfect, contains information on building envelope performing R-values: http://www.ornl.gov/sci/roofs+walls/AWT/Ref/TechHome.htm. They have not added a solid wood wall yet, however it is know that wood has an r-value of approximately 1 per inch and that it releases heat much more quickly than thermal mass products such as stone, concrete and block.  
 7  Marcoplos-Sundermann eco-house, Orange County Orange Blown-in damp spray cellulose in walls and horizontal ceilings (boric acid added as a fire retardant which has the fringe benefit of being a benign pesticide). Fiberglass in floor and sloped ceilings. Insulating foamboard sheathing also used. But most importantly, it is extremely air-sealed with caulk and insulating foam.  
 
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