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A new system utilized in the Federal Housing Administration
recommended criteria for impact sound insulation. Descriptive of
two or more materials which are not suitable to be used
together. Provision in a contract in which one party agrees to
be financially responsible for specified types of damages,
claims, or losses. The process by which air leaks into a
building. In either case, heat loss results. To find the
infiltration heating load factor (HLF), the formula to account
for the extra BTU's needed to heat the infiltrated air is:
(Impact Noise Rating). A single figure rating which provides an
estimate of the impact sound insulating performance of a floor-
ceiling assembly. In roofing, a drain positioned on a roof at
some location other than the perimeter. It drains surface water
inside the building through closed pipes to a drainage system.
Insulating Glass Unit Two or more lights of glass