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          1 min read

          Air and Moisture Barrier Applications


          Yesterday we had the pleasure of hosting Bill Murphy from
          Parksite for a lunch & learn seminar about Air and Moisture Barriers for
          Commercial Buildings. Waiting for the last slide of the presentation made the
          presentation worth more than advertised.

          tyvek.jpg

            The slide contained this photo showing an installation with
          Tyvek Commercial Wrap. The program discussion was diverted by the fastener used
          to secure Tyvek to the substrate. The photo shows an installation over a framed
          wall with gypsum board sheathing. Tyvek requires mechanical fasteners with
          washers to be used with gypsum sheathing. This detail prompted a question about
          being able to use Tyvek over masonry and concrete with similar mechanical
          fastening.

           

          For past projects, we struggled to find a simple solution
          for multi-story residential continuing care and multifamily housing projects
          where the lower floors were masonry veneer over masonry backup and the upper
          floors were siding over framed backup. This condition typically required two
          different air barrier materials and a transition detail to maintain the
          integrity of the barrier. The air barrier at the lower floors often
          transitioned to a waterproofing membrane which required another product and
          another transition.

           

          We learned that Tyvek is capable of solving the problem and
          eliminating the transitions. Tyvek can be installed over gypsum sheathing and
          over masonry or concrete, the only difference being the fastener. In addition,
          Tyvek accessories include flashings to make transitions to waterproofing
          membranes.

           

          None of this discussion was part of the prepared
          presentation. The photo provided a valuable opportunity that will help our
          clients solve a persistent problem. Our staff and friends learned something new
          that will have immediate and practical use.

           

          If you wish to learn more about Tyvek applications, you may
          contact Bill at bmurphy@parksite.com
          or visit Parksite at http://parksite.com.

           

          Conspectus shares lunch & learn presentations with our
          clients and friends that are interested in joining the discussion via our WebEx
          account. We have a limit on the number of participants that we can accommodate
          so reservations are required. If you wish to receive notices about the lunch
          & learn programs we host, please send an email to bbushay@conspectusinc.com and ask
          to be added to our notification list.

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