IBHS ROOF FARMS:
CLIMATES & ELEMENTS
EFFECTS OF LONG-TERM WEATHERING
The IBHS Roof Farm project scope was developed to ensure
consistent designs and focused variability. Specimens are
constructed as a “set.” Each set includes new specimens, as
well as those that will age for 5, 10, 15, and 20 years. Each
individual specimen includes multiple panels to allow for
repetition in testing of various wind and hail test standards,
and each features north-facing and south-facing panels to
examine differences that may occur due to sun exposure.
IBHS is interested in collaborating with partners
who are willing to construct and install duplicate
specimens and similar instrumentation systems
at their respective locations.
SCOPE
Each specimen is 15 ft. x 15 ft. with a simple gable roof, 6/12 pitch, and coderequired soffit and ridge ventilation. The roof is enclosed on the sides and
bottom to create an enclosed ventilated attic. Specimens will be aged for
future wind and impact testing. 2,900 sq. ft. (0.07 acres) is required for a “set”
of four roof specimens.
Panels on both
exposures
2x
36” x 36” panel for
use in UL 2218 test
methods.
ROOF PRODUCTS
SELECTED BY:
• TYPE
• MANUFACTURER
• MARKET PREVALENCE
• STANDARD TEST RATINGS
1x
FIVE
TEN
FIFTEEN
TWENTY
55” x 66” panels for use in
ASTM 3161, ASTM 7158,
FM 4473, and IBHS original
impact test methods.
The specimens are
constructed in a grid
with 8 ft. wide roads between
them for ease of access and to
reduce shadows.
The specimens
are installed on
a post system
approximately 3-4 ft.
above ground level.
Disaster Safety Review | 2013 13