CEMP-ET
TI 809-53
01 May 1999
Stripping--Strip flashing: (1) The technique of
Standing seam--Watertight seam type featuring
sealing a joint between metal and bituminous
an upturned rib, which may also be structural. It
membrane with one or two plies of felt or fabric
is made by turning up the edges of two adjacent
and hot- or cold-applied bitumen; (2) The
metal panels and then folding them over in one
technique of taping joints between insulation
of a variety of ways.
boards or deck panels.
Standing water test--Evaluations in which test
Substantial Completion--The stage in the
panels are submerged in aqueous solutions and
progress of the work when it is sufficiently
alternately dried in air.
complete for the owner to occupy or utilize the
work for its intended use.
Starting platform--A movable platform used to
support a seaming machine as it begins to roll-
Substrate--Surface upon which
a roof
seal a metal seam.
component is placed (structural
deck or
insulation).
Steep asphalt--A relatively viscous roofing
asphalt conforming to the requirements of
Super-steep asphalt--A high viscosity roofing
Specification D312, Type Ill.
asphalt conforming to the requirements of
Specification D312, Type IV.
Strain--Deformation under stress.
Supported sheeting--See Fabric Reinforcement.
Strawberry--See Blueberry.
Surface cure--Curing or vulcanization which
Stress--(1) A measure of the load on a
occurs in a thin layer on the surface of a
structural member in terms of force per unit area
manufactured polymeric sheet or other items.
(Mpa) (kips per sq. in.); (2) The force acting
across a unit area in solid material in resisting
Surfactants--Surface active agents that reduce
the separation, compacting or sliding that tends
surface tension when dissolved in water or water
to be induced by external forces. Also the ratio
solutions, or reduce interfacial tension between
of applied load to the initial cross sectional area,
two liquids, or between a liquid and a solid.
or the maximum stress in the outer fibers due to
an applied flexural load.
Susceptibility--When not otherwise qualified,
the degree of change in viscosity with
Stress concentration--A condition in which
temperature.
stress is highly localized, usually induced by an
abrupt change in the shape of a member or at a
Tack-free--A film is considered tack-free when
substrate joint (e.g., between insulation joints)
the finger, with a slight pressure, will not leave a
Stress relaxation--The time-dependent change
mark. The surface will not be sticky.
in the stress resulting from application of a
constant total strain to a specimen at a constant
Tapered edge strip--A tapered insulation strip
temperature. The stress-relaxation at a given
used to elevate the roofing at the perimeter and
elapsed time is equal to the maximum stress
at penetrations of the roof.
resulting when the strain is applied minus the
stress at the given time.
Tar boils--Bubbles of moisture vapor encased in
a thin film of bitumen, also known as blueberry,
Strikethrough--A term used in the manufacture
blackberry, etc.
of fabric reinforced polymeric sheeting to
indicate that two layers of polymer have made
Tear strength--The maximum force required to
bonding contact through the reinforcing scrim.
tear a specified specimen, the force acting
substantially parallel to the major axis of the test
Strippable films--Added protection sometimes
specimen. Measured in both initiated and
applied to continuous strip in coil coating
uninitiated modes. Obtained value is dependent
process. Applied after prime and topcoats to
on specimen geometry, rate of extension, and
resist damage prior to and during erection.
D-17
Previous Page
