Attic Top-Plate Air Sealing
Sealing the seams where drywall meets the wall top plates — and the wiring holes through them — while the attic insulation is out.
Insulation
Choosing and installing insulation.
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Techniques
Sound-Deadening Fiberboard
A recycled wood-fiber panel layer hung under the drywall — paired with mineral wool in the cavity — to keep sound from crossing walls and ceilings.
Foam Gun Reach Extension
A tapered-on length of PEX that puts foam at the back of deep gaps.
Rodent-Proof Floor Insulation
Stringers and hardware cloth closing the underside of a cabin floor cavity before insulation, so nothing chews in from below.
Soundproof Wall Layers
Putty pads on the boxes, mineral wool in the cavity, and double 5/8 drywall with damping compound between — mass plus damping plus sealed flanking paths.
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