Studies and Experts Prove Saving Windows is Better
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johnleeke
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Joined: 20 Aug 2004
Posts: 1984
Location: Portland, Maine, USA

PostPosted: Fri Oct 30, 2009 9:42 am    Post subject: Studies and Experts Prove Saving Windows is Better Reply with quote

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Do any of you know of data, research, studies or informed opinions that demonstrate the potential or realized improvement in reduced energy use for wood window restoration or augmentation, such as storm windows and weatherstripping.


Here are some of the most useful:

Field Evaluation of Low-E Storm Windows, a study done on Chicago bungalows in 2005.
http://www.ornl.gov/sci/buildings/2010/Session%20PDFs/22_New.pdf
Energy Update Newsletter with a review of the study:
http://www.focusonenergy.com/files/Document_Management_System/Extranet/energydesignupdatefeb08_newsletter.pdf


Window Condensation in Historic Buildings..., National Research Council Canada.
http://www.nrc-cnrc.gc.ca/eng/ibp/irc/ctus/ctus-n5.html

Improving the Thermal Performance of Traditional Windows, for English Heritage by Dr Paul Baker, Glasgow Caledonian University
October 2009
http://www.climatechangeandyourhome.org.uk/live/content_pdfs/579.pdf

JLC Report, Can Replacement Windows Live
Up to Energy Claims? (Feb. 2010)
"If the existing windows were in good condition — even if they were no better than single-glazed windows with fitted storms — their high-tech replacements are unlikely to pay for themselves in energy savings during their lifetime. "
http://www.jlconline.com/cgi-local/viewnew.pdf/0/725e61f19016c81b4f90e1f51448f6a3/www.jlconline.com/cgi-bin/jlconline.storefront/4b7ad66f1d19066927170a32100a0628

William Hill, building scientist, demonstrates the 400 year payback on replacement windows:
http://www.scribd.com/doc/20481724/Replacement-Windows-and-Furnaces-in-the-Heartland-Hill-1990

Improving the Thermal Performance of Traditional Windows, from Scotland:
http://www.historic-scotland.gov.uk/thermal-windows.pdf

English Heritage Proves Saving Windows Better than Replacing: summary with good quotes, all the window repair methods, scientific methods and data complete, very easy to understand.
http://www.climatechangeandyourhome.org.uk/live/research_generic.aspx

Window of Opportunity: A Three-Part Master Course on Windows in Traditional Settings, Course #2 with John Leeke and Walter Sedovic (live presentation July 2009, recording now available, be sure to listen through to the Q&A session at the end, free but you have to register and give your contact info which may be used for marketing)
http://www.traditional-building.com/windowwebinars/

A windows tip sheet from the National Trust for Historic Preservation.
http://www.ohp.parks.ca.gov/pages/1054/files/july2008windowstipsheet.pdf

“Measured Winter Performance of Storm Windows”
http://www.ohp.parks.ca.gov/pages/1054/files/berkeley%20storm%20window%20research.pdf

“Building Regulations and Historic Buildings: balancing the needs for energy conservation with those of building conservation”
http://www.ohp.parks.ca.gov/pages/1054/files/english%20heritage%20interim_guidance.pdf

“Repair or Replace Windows in Historic Buildings: Arriving at a Sustainable Solution”
http://www.ohp.parks.ca.gov/pages/1054/files/heritage%20canada.pdf

“Life Cycle Of Window Materials - A Comparative Assessment”
http://www.ohp.parks.ca.gov/pages/1054/files/uk%20window%20frame%20lca.pdf

“Domestic Retrofitting Strategies in the UK: Effectiveness vs. Affordability”
http://www.ohp.parks.ca.gov/pages/1054/files/domestic%20retrofit%20uk.pdf

“What Replacement Windows Can’t Replace: The Real Cost of Replacing Historic Windows”
http://www.ohp.parks.ca.gov/pages/1054/files/replacement_windows%20sedovic%20gotthelf.pdf

“Testing the energy performance of wood windows in Cold Climates”
http://www.ohp.parks.ca.gov/pages/1054/files/testing%20windows%20in%20cold%20climates.pdf

“Lincoln Hall Windows Research Report: A Case Study of Options for Treatment for Windows at Lincoln Hall, University Of Illinois, Urbana Champaign” http://www.ohp.parks.ca.gov/pages/1054/files/illinois%20lincoln%20hall%20study.pdf

Let us know if you learn of any others.

_________________
John

by hammer and hand great works do stand
by pen and thought best words are wrought


Last edited by johnleeke on Fri Aug 27, 2010 12:14 pm; edited 4 times in total
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woodturner



Joined: 23 May 2006
Posts: 70
Location: Western Pennsylvania

PostPosted: Tue Feb 16, 2010 12:38 pm    Post subject: Support from an unexpected source Reply with quote

Found this in the JLC newsletter today:
"If the existing windows were in good condition — even if they were no better than single-glazed windows with fitted storms — their high-tech replacements are unlikely to pay for themselves in energy savings during their lifetime. "

http://www.jlconline.com/cgi-local/viewnew.pdf/0/725e61f19016c81b4f90e1f51448f6a3/www.jlconline.com/cgi-bin/jlconline.storefront/4b7ad66f1d19066927170a32100a0628
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Uchmar



Joined: 20 May 2010
Posts: 8

PostPosted: Fri May 28, 2010 5:53 pm    Post subject: Reply with quote

In this article:
“Domestic Retrofitting Strategies in the UK: Effectiveness vs. Affordability”
http://www.ohp.parks.ca.gov/pages/1054/files/domestic%20retrofit%20uk.pdf
Autor advocates for cavity insulation (wall cavity if I got it correctly). But this is wrong, isn't it?

Insulating ventilated cavities should result in condensation, no matter if this is a wall cavity or a cavity in the double window (two separated glass panels).
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jade



Joined: 11 Feb 2005
Posts: 769
Location: Hawley MA

PostPosted: Fri May 28, 2010 8:11 pm    Post subject: Reply with quote

uchmar welcome to the site...i've read, with interest, your other two posts...

yes, indeed, filling the weight cavity with insulation or otherwise blocking venilation can lead to condensation and mold growth...

even those with the best intentions can share misguided information...

...jade
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