Insulating board of firm plastic foam, which is often used in the walls of a building to protect against the transfer of heat or cold through the walls.
The edge metal used to terminate Sprayed Polyurethane Foam.
Synthetic material, which is used in places where it is difficult to use sheet installation. A two-part liquid, which forms a chemical reaction that causes rapid expansion of the foam, fills up the area, after it is mixed and applied or applied from a pressurized container.
(1) A very thin sheet or leaf of metal. (2) A leaf-like, rounded space or design in windows, doors, etc. of gothic architecture.
Gypsum drywall panels that increase the insulating value by being backed with a foil vapor barrier.
In sheet metal work, a joint between sheets of metal wherein the edges of the sheets are crimped together and folded flat.
Door that is manufactured in multiple sections that are hinged and fold back as they are slid open. Ceiling tract mounting is preferable so that the weight of the doors can be held more firmly and without sag.
Room divider, which is hinged, and folds back to the wall as it is slid open. Ceiling tract mounting is preferable so that the weight of the divider can be held more firmly and without sag.
Generally with a folding rule two styles are available, one for inside and one for outside reading. Each is comprised of twelve slats with 1/16th inch graduations on top and bottom, stud center markings every 16 inches, brass strike plates for long wear and spring-actuated joints for positive locking when the rule is opened.
Retractable stairway that folds up into an overhead opening, when not in use. Often used as attic stairs, they can be pulled down for use and stored out of the way at other times.