[Greenbuilding] Tyvek vs. tarpaper, over cedar siding? Alternatives

[RONALD CASCIO]

----- Original Message ----- 
From: "Alan Abrams" <alan at abramsdesignbuild.com>
To: <Greenbuilding at listserv.repp.org>
Sent: Wednesday, April 18, 2007 11:16 AM
Subject: Re: [Greenbuilding] Tyvek vs. tarpaper, over cedar siding? 
Alternatives


 "We've gone back to tar paper because of reports that Tyvek crumbles over 
time."

One also need to note the many grades of putatively designated 15# 
felt--apparently what passes these days is not the same stuff used in the 
Good Old Days.

 Alan Abrams


Which is why we've gone to 30 lb. felt for something like the last 20 years. 
It wasn't long after Tyvek hit the market and we'd used it a half dozen 
times that we began to have major concerns about continuing to use it.

Ron Cascio
Chestnut Creek
Design/Build/Consult/Develop
Maryland's Eastern Shore