Editing Duct tape (section)

=== Ductwork ===
The product now commonly called duct tape has largely been displaced in [[HVAC]] uses with specialized foil tapes designed for sealing heating and ventilation ducts (sometimes referred to erroneously as "duct tapes"). 

Common duct tape carries no safety certifications such as [[Underwriters Laboratories|UL]] or [[California Proposition 65 (1986)|Proposition 65]], which means the tape may burn violently, producing toxic smoke; it may cause ingestion and contact toxicity, it can have irregular mechanical strength, and its adhesive may have low life expectancy.<ref name="lbl"/><ref name="walker"/> Its use in ducts has been prohibited by the state of [[California]]<ref>{{cite web|url=http://www.energy.ca.gov/title24/changeout/ |title=California Energy Commission Title 24 of the Building Energy Efficiency Standards |publisher=Energy.ca.gov |access-date=2009-07-21 |url-status=dead |archive-url=https://web.archive.org/web/20090714033548/http://www.energy.ca.gov/title24/changeout/ |archive-date=July 14, 2009 }}</ref> and by building codes in many other places.

Research was conducted in 1998 on standard duct tape at Lawrence Berkeley National Laboratory, Environmental Energy Technologies Division, which concluded that under challenging but realistic conditions duct tape becomes brittle, fails, and may even fall off completely.<ref name="lbl">{{cite web|url=http://www.lbl.gov/Science-Articles/Archive/duct-tape-HVAC.html|work=[[Lawrence Livermore National Laboratory|Lawrence Berkeley National Lab Energy Performance of Buildings Group]]|title=Sealing HVAC Ducts: Use Anything But Duct Tape|date=1998-08-17|url-status=live|archive-url=https://web.archive.org/web/20070504043646/http://www.lbl.gov/Science-Articles/Archive/duct-tape-HVAC.html|archive-date=2007-05-04}}</ref><ref name="walker">{{citation |author=Max Sherman, Lain Walker |title=Can Duct Tape Take the Heat? |publisher=Home Energe Magazine |url=http://www.homeenergy.org/show/article/nav/walls/page/9/id/1400/magazine/110 |access-date=September 27, 2012 |url-status=live |archive-url=https://web.archive.org/web/20130216034927/http://www.homeenergy.org/show/article/nav/walls/page/9/id/1400/magazine/110 |archive-date=February 16, 2013 }}</ref>