This is a wood structure 1 hour fire rated sound wall with 3 1/2″ and 6″ sound batt insulation. This assembly has a 2×4 and a 2×6 stud wall configuration separated by a 2″ air gap for minimum sound transference which is similar to UL no U341 TL-93-292 STC 59.
You must log in to submit a review.