SECTION 07550
MODIFIED BITUMEN MEMBRANE ROOFING (SBS)
Modified Bitumen Membrane Roofing (SBS)
UIHC #20X-0XX 07550-14P. Wall and Curb Flashing Detail:- Attach cant using flashing cement, insulation adhesive or mechanical fasteners.
- Run specified roofing plies minimum of 2" above cant and adhere to wall.
- Embed SBS flashing by torching from top of wood nailer to a point at least 4" beyond
termination of roofing plies. Maintain a minimum 3" side lap and a minimum
specified flow of bitumen beyond all edges. - Nail plies 1" below top edge, maximum 6" oc. using minimum 1" diameter cap nails.
- Requires counterflashing.
3.09 PROTECTION OF APPLIED ROOFING:
A. Protection Against Moisture Absorption: When precipitation is imminent and at the end of
each day's work, provide protection as follows:- Water Cutoffs:
a. Water cut-offs shall be installed to prevent water from flowing beneath the
roof system during inclement weather.b. When the application of the insulation and roofing system is resumed, cut the
strips of felt along the vertical edges of the insulation, exposing the edges of
the insulation, and remove the cutoff felts and materials.- Temporary Flashing:
a. Provide temporary flashing at drains, curbs, walls, and other penetrations and
terminations of roofing felts until the roofing membrane is complete and
permanent flashings are applied. Material for temporary flashing shall be by
roofing manufacturer specified.b. Remove temporary flashing before applying permanent flashing.B. Temporary Walkways, Runways and Platforms.- Do not permit storing, walking, wheeling, or trucking directly on applied materials.
- Provide temporary walkways, runways, and platforms of smooth clean boards or
planks as necessary to avoid damage to applied roofing materials, and to distribute
weight to conform to indicated live load limits of roof construction. - Use rubber-tired equipment for roofing work.
C. Damaged Work.November 1, 2016