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For the individuals inside a building in a loud area, more insulation is necessary. You'll need to install a Double Door AcousticMAX™ 50 Smoke Vent. STC 50 - OITC 39 is its rating. It not only provides effective sound insulation, but it is also advantageous in the event of an interior fire. The material is  14 gauge galvanneal steel, and it also has mineral wool utilized for insulation, with a sound mat in the curb and cover for a total R-14 rating. The latch is a zinc-plated steel rotary intended to keep coverings shut against wind uplift of 90 psf. It's also UL 793 listed, with FM 4330 approval as an alternative.

It gives us pleasure to provide you with a wide range of shipping choices delivered straight to your work site. Do you require a custom size? As little as five days, we can prepare and send your order! Our world-class customer service staff is eager to discuss all of your Roof Hatch requirements with you right now! For further inquiries, please reach us at 1-800-431-8651.