Any takers on Andy's question?
Have a similar situation in what we call a pole barn - main wood trusses
6'-8' o.c. with 2"x4" or 6" purlins spaning between the trusses. These
purlins are <3' o.c. and attic heads can't be used because of the cut sheet
obstruction rules (figure 16A, B). Now what if the spray insulation covers
the purlins?
Chris Cahill, P.E.
Fire Protection Engineer
Sentry Fire Protection, Inc.
763-658-4483
763-658-4921 fax
Email: [EMAIL PROTECTED]
Mail: P.O. Box 69
Waverly, MN 55390
Location: 4439 Hwy 12 SW
Waverly, MN 55390
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Andy Johnston
Sent: Wednesday, October 17, 2007 3:30 PM
To: [email protected]
Subject: RE: icynene
If the spray on insulation totally coves the top cord of the truss does this
affect the attic spacing requirements? The channeling affect of the top cord
is not there.
Andy
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