What does this mean: water repellent preservative to comply with WDMA I .S .4
Hi
I was reading a website that sold wooden storm windows and it mentioned items like:
Preservative treat to AWI specifications for long life
water repellent preservative to comply with WDMA I .S .4.
I spent some time googling and found the WDMA website but could almost no useful information. I may be working on our wooden storms and thought it might be useful to know what this really meant.
thanks
Replies
G
Well, things are certified, approved, are complied with..............
In some cases, associations will set standards that certainly could be worthwhile.
However, testing bureaus are supposedly not tied in any way to companies-standards are set and they test.
It'll say on the can whether products meet certain criteria set and tested. What that means to the layman or professional is anybody's guess.
Take a look at the companies that say their 1/4 inch fan fold insulation will vastly improve your living conditions-I'm sure it complies with something.
doing what you did in studying WDMA I .S .4. is more than most would do.
Caulking is an interesting study as well. Standards are set and through successful testing a product can be deemed to outlast, outperform, etc. than types of a lesser quality that don't measure up.
I'm sure sealers as well as the whole paint industry settle in to similar ratings.
It beats going to a store and asking a perhaps uninformed sales associate------"what works good for ..........."
Learning what's good takes time, these testing bureaus give you a leg up if you look. Best of luck.
AWI is the Architectural Woodwork Institute. WDMA is the Window and Door Manufacturers Association. WDMA I .S .4. is a standard for post-fabrication water-repellent treatment. My guess is that the standard is only really intended to protect the door temporarily during construction, prior to its being painted or otherwise finished.