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What is TPA Material Rating?

Ceilings of rooms and circulation spaces (but not including protected stairways) may incorporate thermoplastic lighting diffusers if ALL of the following provisions are observed:

a. The surfaces of the void space above the suspended ceiling comply with the general provisions that apply to the space below the suspended ceiling
b. TP(a) diffusers can be used without restriction
c. TP(b) diffusers are restricted as detailed below.

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What is UGR 19? (Unified Glare Rating)

UGR stands for unified glare index. It’s a numerical way of defining how bright a luminaire appears in-situ and it goes back to the earliest editions of lighting codes for interior lighting – office lighting, in particular.

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Exciting News: Mastertrade Supplies Unveils Brand New Website Update!

We are thrilled to announce the launch of our revamped website, ushering in a new era of convenience, efficiency, and innovation. As part of our commitment to providing you with the best possible experience, we have migrated from Magento 1 to Magento 2, bringing a host of exciting features and improvements to enhance your shopping journey.