Recent Q&A

• How to fasten boards in reverse board and batten siding over rigid mineral wool

  We're building in climate zone 4C. The design calls for 2x6's @ 24" O.C. with dense-packed cellulose, plywood sheathing, WRB, 3" rigid mineral wool and board and batten cedar siding…

• Does OSB sheathing need to be installed horizontally over advanced framing studs 24″OC?

  A client building in Zone 4 says their engineer told them, "in our wind speed and exposure (105mph - C) neither OSB nor 15/32” CDX can span between studs at…

• How do you keep a continuous air barrier in a vented attic over a porch?

  This duplex is being built in zone 4C (see photo). The vented attics are going to be blown with cellulose. My concern is the part of the attic that extends…

• What needs to go behind a shower surround on an exterior wall with 2″ of exterior foam sheathing?

  I have a client doing a whole house remodel. They've already wrapped the entire exterior with 2" of EPS and are insulating the interior with blown in fiberglass. What insulation…