-jc
On Mar 14, 2005, at 9:57 PM, [EMAIL PROTECTED] wrote:
<x-tad-smaller>In a message dated 3/14/2005 10:38:47 A.M. Eastern Standard Time, [EMAIL PROTECTED] writes:</x-tad-smaller>
<x-tad-smaller>I'm reviewing an application for a re-roof on a important and highly visible historic building. Applicants are repairing the historic clay tile roof, and are also proposing to waterproof (spray apply silane waterproofing to the roof-side of existing masonry parapet walls to reduce water infiltration) Exterior masonry walls have been previously waterproofed in the 80s.</x-tad-smaller>
<x-tad-smaller> </x-tad-smaller>
<x-tad-smaller>I'm not familiar with this product-- I'm going to check the web, but wanted to see if there were any words of wisdom from the list on this sort of application.</x-tad-smaller>
<x-tad-smaller>Heidi,</x-tad-smaller>
<x-tad-smaller>Absolutely no spray on applications to masonry, ever, under any circumstances (for the most part, which is to say 99.999999% of the time, and I can't think of any legitimate exceptions.) </x-tad-smaller>
<x-tad-smaller> </x-tad-smaller>
<x-tad-smaller>Spray-on applications are cheap-shit, half-assed attempts to avoid doing things the RIGHT way, and will eventually (and possibly immediately) bite you in the ass, wallet, and historic fabric. Have the parapets disassembled, flashed properly (using SHEET flexible-membrane flashing, not schmear-on crap with the potential for holidays which will leak) and rebricked. Make sure that flashing is installed under whatever the coping material is, also.</x-tad-smaller>
<x-tad-smaller> </x-tad-smaller>
<x-tad-smaller>DON"T try to save money on this.'</x-tad-smaller>
<x-tad-smaller> </x-tad-smaller>
<x-tad-smaller>Ralph</x-tad-smaller>
