International Building Code 1503.1
General. Roof decks shall be covered with approved
roof coverings secured to the building or structure in accordance
with the provisions of this chapter. Roof coverings shall
be designed, installed and maintained in accordance with this
code and the approved manufacturer’s instructions such that
the roof covering shall serve to protect the building or structure.
International Building Code 1503.2
Flashing. Flashing shall be installed in such a manner
so as to prevent moisture entering the wall and roof through
joints in copings, through moisture-permeable materials and at
intersections with parapetwalls and other penetrations through
the roof plane.
Locations. Flashing shall be installed at wall and
roof intersections, at gutters, wherever there is a change in
roof slope or direction and around roof openings. Where
flashing is of metal, the metal shall be corrosion resistant
with a thickness of not less than 0.019 inch (0.483 mm) (No.
26 galvanized sheet).
2006 INTERNATIONAL BUILDING CODE 263
International Building Code 1503.2.1
Locations. Flashing shall be installed at wall and
roof intersections, at gutters, wherever there is a change in
roof slope or direction and around roof openings. Where
flashing is of metal, the metal shall be corrosion resistant
with a thickness of not less than 0.019 inch (0.483 mm) (No.
26 galvanized sheet).
2006 INTERNATIONAL BUILDING CODE 263
International Building Code 1503.3
Coping. Parapet walls shall be properly coped with
noncombustible, weatherproof materials of a width no less
than the thickness of the parapet wall.
International Building Code 1503.4
Roof drainage. Design and installation of roof
drainage systems shall comply with the International Plumbing
Code.
Gutters. Gutters and leaders placed on the outside
of buildings, other than Group R-3, private garages and
buildings of Type V construction, shall be of
noncombustible material or a minimum of Schedule 40
plastic pipe.
International Building Code 1503.4.1
Gutters. Gutters and leaders placed on the outside
of buildings, other than Group R-3, private garages and
buildings of Type V construction, shall be of
noncombustible material or a minimum of Schedule 40
plastic pipe.
International Building Code 1503.5
Roof ventilation. Intake and exhaust vents shall be provided
in accordance with Section 1203.2 and the manufacturer’s
installation instructions.