Constructions Standards Checklists

THIN PROFILE WRB SHEATHING – GENERAL

DRAINAGE PLANE  A. Sheathing installed continuous as the water-

resistive barrier (WRB) over the entire wall surface including unconditioned spaces and under framing and trim pieces. Printed side is facing out.

 B. Sheathing panels installed vertically or

horizontally with all panel edges supported by framing or blocking.  C. Specifed fasteners are installed with underside of fasteners flush with surface of sheathing - do not overdrive.  D . Fastener spacing maximum 3" o.c. along edges and 3" o.c. in the feld. Fastener edge distance is minimum 3/8". Staples installed parallel to framing members. Minimum fastener embedment of 1" into framing.  E. Sheathing joints shingle lapped 3/4" with single

row of fasteners along framing members OR sheathing joints butted with single row of fasteners in each panel.  F. If butted, joints taped shingle fashion with minimum 2 ½" wide tape approved manufacturers tape, centered over seams and pressed flat to remove wrinkles and ensure proper adhesion.  G. Tape splices overlap minimum 3" on vertical and horizontal seams and 1" at T-Joints.  H. Approved 4" flashing tape installed on the exterior at all inside and outside corners.  I. Additional 2' x 2' target flashing installed at all frame sub-fascia returns and taped to the WRB with flashing tape at top and sides.  J. Minimally sloped surfaces such as parapets, half walls, porch columns, etc. have an additional layer of self-adhered flashing membrane installed and lapped up wall to achieve proper adhesion.  K. Ornamental details or accessories through the wall properly flashed and protected.  L. Sheathing is always installed in a shingle fashion method with 1" overhang at the foundation transition.  M. All damage to panels repaired per manufacturer specifcations depending on extent of damaged area.  N. Apron and step flashing taped to sheathing panels at roof-to-wall intersection using minimum 6" flashing tape.

CONSTRUCTION STANDARDS CHECKLISTS | Drainage Plane | 33