Class A Fire Rated Solar Panels

Recently these fire resistance standards were expanded to include solar equipment as part of the roof system.

Class a fire rated solar panels.

I understand that there has been a change in the requirements for california regarding the fire ratings pv panels modules are required to be minimum class b fire rated. The general requirement for roofing systems in the ibc refers to a class c fire rating. This is what some authorities having jurisdiction ahj have done. Class a fire rating background all roofing products are tested and classified for their ability to resist fire.

Required tests for system fire class rating of pv module or panel with mounting system in combination with roof coverings table 31 2 test tests over representative roof coverings class aclass bclass c spread of flame on top surface of module or panel section 31 1 2 a flame spread less than. Solar abcs research investigates whether and how the presence of stand off mounted pv arrays may affect the fire class rating of common roof covering materials. Several people involved in the creation of the new fire regulations respond to this article. Ul 1703 fire classification requirements.

Class a or b is required for areas such as wildland urban interface areas wui and very high fire severity areas. We are writing to address several statements in the recent solar power world article titled new class a fire regulations closer than you think published aug. The pv system consists of the racking system and the pv solar panels module as an assembly. In the absence of a fire rating for pv systems it may seem appropriate to use the fire rating of the pv modules in order to ensure the desired result of retaining the roof assembly s original fire classification.

Where is a class a fire rating required. Specifically this requires the modules mounting hardware and roof covering to be tested together as. The pv modules are rated in classes a b or c whereby class c comprises the minimum requirements. I ve heard that several ahjs are now going in this direction.

Some solar panels for example include a backing of highly combustible plastic. Are to be performed for the fire resistance qualification of pv modules in the roof area. 19 2014 that we believe are inaccurate. Fire class rating of pv systems.

In particular these tests were initiated in response to questions from stakeholders about the language in the ul guide card that stated that pv modules. In the article the author states that racking systems from solardock and solar panels. Is it true that solar panels must have a fire rating that is equal to what is required of the roofing material.