Hollow core door with enhanced acoustic performance

Abstract

The present disclosure provides an acoustic hollow core door comprising a door slab including an inner door frame, a first facing secured to a first side of the inner door frame, and a second facing secured to a second, opposite side of the inner door frame. The inner door frame and the first and second facings define an at least partially hollow air cavity, and at least one of the first or second facings has a thickness between about 0.150 and 0.320 inches and a nominal density of between about 0.80 and 1.1 grams per cubic centimeter. The hollow core door may include internal sticks or core inserts positioned within the hollow air cavity between the first and second facings. Acoustically absorptive material may be positioned within the hollow air cavity to reduce resonance effects around 250-315 Hz frequency range. The acoustic hollow core door achieves STC ratings of between about 25 and 31, while maintaining weight reduction compared to solid core doors with comparable acoustic performance.

Dependencies are inferred from the claim text.