Instructions / Assembly

3. Uplift Testing: SunSky corrugated polycarbonate panels meet Uplift Test Criteria speciﬁed in UL 580 Test for Uplift Resistance of Roof

Assemblies (UL Class 90). Consult Palram Americas technical support for additional details if necessary.

Test Description

Roof Covering: Corrugated polycarbonate roof panels with 9 inch

spaced corrugations. The tested material comes in 0. 032" thick x 38"

width and 12 feet long.

Fastener: #12 - 14 x 1-1/4" Type 2 Structural Drilling

Fastener, carbon steel, zinc plate with 3/4" O. D. heavy

EPDM/galvanized washer.

Uplift Test Results

A buckled hip was visible during the test. The fasteners were in

place and no cracks or breaks were found in the SunSky panels. The

test assembly withstood all phases of testing for Class 90. The roof

assembly described in this report met the uplift test criteria speciﬁed

in UL 580 - Test for Uplift Resistance of Roof Assemblies. Note: The

buckled hip returned to the original shape after testing with no panel

damage or permanent deformation.

4. Purlin & Girt Spacing: Purlin and girt spacing are usually dictated by

overall design and engineering calculations along which the whole

structure is constructed. SunSky panels are installed at the same

purlin/girt spacing as the rest of the metal panels in the structure.

Verify that the installed SunSky panels will remain within the uniform load-supporting limits of deﬂection as observed by the

Evaluation Acceptance tests (see the “Uniform Load” diagrams and “Uplift” paragraphs).

In case purlin/girt spacing of the metal-clad structure surpass the values depicted in the tables by a signiﬁcant margin (especially

in multi-panel runs), a secondary support system, based on data in the above mentioned tables, should be prepared for the SunSky

skylight or side light.

When support spacing is marginally larger, on-site environmental conditions should be considered and acted upon.

Figure 8