NetComposites
Advanced Engineering 2018

Strongwell’s Fiberglass Products Earn LARR Approval

22 June 2009

After four years of intensive reporting and testing, Strongwell’s fibreglass structural materials have achieved Los Angeles Research Report (LARR) approval for Radio Frequency (RF) transparent screening and enclosure systems.

Strongwell’s LARR approval is comprehensive, encompassing Extren structural shapes and plate, Durashield building panels, Safplank planking panels and Fibrebolt studs and nuts used in structures requiring RF transparency for rooftop structures.

In order to achieve LARR approval, Strongwell’s materials were exposed to exceedingly difficult 3rd party tests, against a very stringent list of mechanical, fire, UV and weathering ASTM standards. The approved products were tested in the lab in accordance with ASTM protocols and also underwent full scale mock-up testing.

This testing and approval provides engineers with the confidence that Strongwell’s materials are ideal for various architectural and structural applications. Many municipal building departments will accept this approval because Los Angeles is considered one of the more difficult zones to obtain construction and building permits. The safety factors of Strongwell’s LARR approval allows the fibreglass structure to be utilized in many more applications than rooftop screening.






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