Exterior sheathing and in-wall blocking — the substrate behind the weather barrier and the backing every finish trade hangs from.
3A-100We install exterior sheathing and the in-wall blocking and backing that the rest of the project depends on — a continuous, fastened substrate for the air and weather barrier, and solid backing wherever something gets mounted to the wall.
Blocking is invisible when it's right and a change order when it's missing. We coordinate backing locations with the equipment, casework, handrail, and specialty trades early, so the wall is ready before they arrive.
DURWOOD