In
a world full of acronyms, most of us know that WRB stands for
water-resistive barrier or weather-resistant barrier. The WRB world was once simple and straightforward. Today, it is anything but that. We went from limited choices; basic installation to a smorgasbord of options coupled with complex installation standards. It seems the world of the
WRB is likely to get more complex.
For plastering contractors,
that complexity is doubled because we have some special rules in
Chapters 25 of the International Building Code and Chapter 7 of the
International Residential Code for one- and two-family dwellings. A look
back at history may help explain where we are and where we are going.