After several meetings and proposals, NRCA organized the repair and replacement
of the Pentagon's roof system caused by the Sept. 11, 2001, attack.
Restoration of the Pentagon's roof system involved rebuilding part of the structure
that was damaged by the airplane crash and repairing a significant portion of the
roof system that was damaged by fire. The fire, caused by thousands of gallons of
jet fuel, destroyed more than 40,000 square feet (3,716 m²) of slate roofing.
Rebuilding the entire structure was be a long and involved process; NRCA's efforts
focused on the areas that needed immediate repair to enable Pentagon workers to
reoccupy their offices.
NRCA received generous donations of materials at no cost from several roofing
materials manufacturers. Many contractor members supplied labor for
at least a portion of the project. And NRCA members contributed more than $125,000
for the project.