New Rochelle Drywall Pros installs the cavity insulation and firestopping that make rated and acoustic assemblies actually perform. Insulation and firestop are the details that carry a wall through inspection and let it do its job in a fire, so we treat them as part of the wall, not an afterthought. We install thermal and acoustic mineral wool in the walls we frame and firestop the penetrations, joints, and head-of-wall conditions with UL-listed systems. Detailing these correctly is what keeps a fire-rated or STC-rated assembly continuous from end to end.
We pack the stud cavities of our walls with dense mineral wool for the thermal and acoustic performance the spec requires, and for the fire resistance it adds to rated assemblies. Mineral wool absorbs airborne sound far better than standard fiberglass and holds up in a fire, which is why the rated and acoustic assemblies specify it. Filling the cavity fully and consistently is the low-cost, high-impact core of most rated walls.
Every penetration through a rated wall or floor has to be sealed with a tested firestop system matched to the penetrant and the assembly. We firestop pipe, duct, cable, and conduit penetrations with the listed sealants, wraps, and devices, and document the systems where the project requires it. Using the correct listed system for each condition is what keeps the barrier rated at every opening.
The joint where a rated wall meets the deck or structure above is a common failure point, so we detail the head-of-wall with the listed firestop system that allows for structural movement while holding the rating. Control joints and wall-to-wall joints in rated construction get the same treatment. Sealing these dynamic joints correctly is what keeps the assembly rated as the building moves.
Beyond New Rochelle, our insulation and firestopping work reaches Mount Vernon, Harrison, Scarsdale, Greenburgh, and White Plains.