ASTM E907-96
(Test Method)Standard Test Method for Field Testing Uplift Resistance of Adhered Membrane Roofing Systems
Standard Test Method for Field Testing Uplift Resistance of Adhered Membrane Roofing Systems
SCOPE
1.1 This test method covers the determination of the resistance of adhered membrane roofing systems to uplift pressure. It applies to roof systems with or without rigid board insulation or base ply, which are either adhered or mechanically fastened, and fully adhered membranes.
1.2 This test method is intended to be used as a measure of the uplift resistance of the roofing system. Systems containing cold adhesive shall be in place for the cure time specified by the adhesive manufacturer to obtain optimum adhesion before conducting the test. Hot-applied systems shall be permitted to cool to normal prevailing surface temperatures before conducting the test.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation: E 907 – 96
Standard Test Method for
Field Testing Uplift Resistance of Adhered Membrane
Roofing Systems
This standard is issued under the fixed designation E 907; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope edges of the chamber to be in complete contact with the roof
surface so that a negative pressure is developed inside the
1.1 This test method covers the determination of the resis-
chamber. Other methods are not to be used to prepare the test
tance of adhered membrane roofing systems to uplift pressure.
area unless the method used will produce a tight seal and is
It applies to roof systems with or without rigid board insulation
compatible so as not to damage the roof membrane. Examples
or base ply, which are either adhered or mechanically fastened,
are the use of wet sand, duct tape, water, or polythene film.
and fully adhered membranes.
1.2 This test method is intended to be used as a measure of
4. Significance and Use
the uplift resistance of the roofing system. Systems containing
4.1 This field test method is suitable for determining the
cold adhesive shall be in place for the cure time specified by
uplift resistance of the roofing system as stated in applicable
the adhesive manufacturer to obtain optimum adhesion before
specifications, bid documents, or when required by other
conducting the test. Hot-applied systems shall be permitted to
authorities having jurisdiction. This field test method is also
cool to normal prevailing surface temperatures before conduct-
intended to supplement measurement of the uplift resistance
ing the test.
performance of roofing systems as determined under laboratory
1.3 This standard does not purport to address all of the
conditions.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Apparatus
priate safety and health practices and determine the applica-
5.1 Square Chamber, 1500 6 15 mm (60 6 ⁄2 in.) in size,
bility of regulatory limitations prior to use.
sufficiently strong to withstand the necessary negative pressure
without collapsing.
2. Referenced Documents
2.1 ASTM Standards:
NOTE 1—A manufactured dome shaped chamber of rigid clear polycar-
E 575 Practice for Reporting Data from Structural Tests of bonate shown in Fig. 1 has been successfully used. The dome consists of
four equal segments for ease of transporting the unit to and from the job
Building Constructions, Elements, Connections, and As-
2 site. Rubber gaskets are used to seal the joints along the flanges. One
semblies
segment of the dome has a hole to accommodate vacuum equipment and
another segment has a hole for a flexible hose leading to a manometer
3. Summary of Test Method
(Fig. 2). The bottom flanges of the chamber are equipped with a flexible
3.1 A controlled negative pressure is created on top of the
poly(vinyl chloride) foam strip to seal the chamber to the roof surface.
roof surface by means of a chamber fitted with a pressure
5.2 Pressure-Sensing Device, for measuring the negative
measuring device and vacuum equipment.
pressure inside the chamber. The manometer shall be calibrated
3.2 For roofs containing surfacing such as gravel, slag, or
to indicate negative pressures in increments of 360 6 20 Pa
granules, the loose surfacing shall be removed by sweeping a
(7.5 6 0.5 lbf/ft ).
300 mm (12 in.) wide path around the perimeter of the test
5.3 Vacuum Equipment, with sufficient capacity to create the
area. Care shall be taken not to damage the test area. A heavy
negative pressures required in the test chamber (see 8.8). The
pouring of hot asphalt is applied over the swept area and
chamber vacuum equipment shall also be equipped with
allowed to cool. This provides a smooth surface and allows the
controls to maintain the constant negative pressure at each test
pressure increment as required in 8.8.
5.4 Dial Indicator, with a reset face graduated in at least
This test method is under the jurisdiction of ASTM Committee E-6 on
Performance of Buildings and is the direct responsibility of Subcommittee E06.21
0.05 mm (0.002 in.) units and having at least a 50 mm (2 in.)
on Serviceability.
range, mounted at the center of a 50 by 50 by 1500 mm (2 by
Current edition approved July 10, 1996. Published September 1996. Originally
e1 2 by 59 in.) long aluminum bar or member of equivalent
published as E 907 – 83. Last previous edition E 907 – 83 (1994) .
1983 Annual Book of ASTM Standards, Vol 04.11.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E 907
FIG. 1 View of Chamber over Roof Test Area During Test
stiffness. Feet on each end of the bar provide support and give considerations, tests shall not be conducted when the wind
a clear distance of 50 mm (2 in.) above the roof surface. This
speed at the roof level is over 6.5 m/s (15 mph). When
allows measurement of roof surface deflections in the test area
necessary to measure and record wind speed, a portable
(see Fig. 3).
anemometer shall be used.
5.4.1 All persons not involved in the test shall be kept far
8.3 Place the bar with attached dial indicator so that the tip
enough away from the test area to ensure that the dial gage
of the dial indicator is in contact with the roof membrane near
indicator is not affected by movement and influence the
the center of the test area.
readings.
8.4 Place the assembled chamber over the roof test area so
that the deflection bar with attached dial indicator is centered
6. Hazards
within the chamber and is perpendicular to two sides of the
6.1 The manometer shall be designed to serve as a safety
chamber. The edges of the chamber shall be sealed to the roof
device to prevent negative pressures that will cause the plastic
surface. Orient the chamber on the roof so that the edges are
dome to shatter. The design of the manometer or safety features
parallel with the direction of the structural framing of the
of other pressure sensing devices shall not be changed to
building.
increase negative pressures above the design or allowable
values of the chamber. 8.5 Install the pressure measuring device. If a manometer is
6.2 Safety goggles or face shield shall be worn by persons
used, fill it with water to zero calibration level.
operating the equipment or observing its operation as a
8.6 Connect the vacuum equipment to the hole provided for
precaution against injury caused by a sudden failure of the test
it in the chamber. Make sure that the bypass valve on the
chamber or roofing
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.