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Mike, I carried out a field study in 1996 of
whole-house air infiltration. The
study was quite extensive and examined how several different treatments affect
airtightness, but also what contribution the components of the house (ceiling,
walls, windows/doors, floor) make. The study involved hundreds of tests of
overall airtightness and produced excellent repeatability. We did not study the products you
mentioned but did look at wet-blown cellulose and blown fiberglass, among
others. Some of the results are fairly
surprising: the walls accounted for
only 14% of leakage, and wall cavity insulation had no measurable effect on
overall tightness of the house. In
one test we removed all of the insulation from the wall cavity and the overall
infiltration increased 1.5%.
Drywall turned out to be the dominant barrier in the wall. The results of the study can be found in
the proceedings of the 1997 Excellence in Building Conference of the Energy
Efficient Building Association: “A Field Study of Whole House Air Infiltration
in Residences”, G.K Yuill, Ph.D, and D.P Yuill,
I hope this helps. David P. Yuill Principal =============== Building Solutions Inc. 402.556.3382 bsiEngineering.com =============== -----Original Message----- Hi all, I am looking for any research results / papers that
have been done on the infiltration rates of frame walls with insulating batts
versus a product like Isynene or Airkrete that expands to fill the entire
cavity. Has anything like this been published or researched? Thanks for your help. Mike Michael Tillou, PE ==================You received this e-mail because you are subscribed to the BLDG-SIM@xxxxxxxx mailing list. To unsubscribe from this mailing list send a blank message to BLDG-SIM-UNSUBSCRIBE@xxxxxxxx=====================================================You received this e-mail because you are subscribed to the BLDG-SIM@xxxxxxxx mailing list. To unsubscribe from this mailing list send a blank message to BLDG-SIM-UNSUBSCRIBE@xxxxxxxx |