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p.t. ledger requirements
does anyone know of a code requirement that requires pressure treated ledgers connected to concrete tilt-up or masonry walls be used to support roof framing? 1997 ubc section 2306.9 appears to allow non-pressure treated wood provided roof is waterproofed.
it is my understanding that the code does not require ledgers to be pressure treated unless they are in contact with "foundation concrete". i think it is a good idea however for roof ledger to be p.t., particularly if the possibility exists for moisture to wick through the wall. this is especially a concern at the control joints. in a lot of tilt-up type buildings however, the roof structure is open and can dry out if the ledger does get wet.

2009-09-15, 11:14 AM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	p.t. ledger requirements p.t. ledger requirements does anyone know of a code requirement that requires pressure treated ledgers connected to concrete tilt-up or masonry walls be used to support roof framing? 1997 ubc section 2306.9 appears to allow non-pressure treated wood provided roof is waterproofed. it is my understanding that the code does not require ledgers to be pressure treated unless they are in contact with "foundation concrete". i think it is a good idea however for roof ledger to be p.t., particularly if the possibility exists for moisture to wick through the wall. this is especially a concern at the control joints. in a lot of tilt-up type buildings however, the roof structure is open and can dry out if the ledger does get wet. __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]