15-156. Liquid roofing systems; violation;
classification; definition
A. A person shall not knowingly apply or allow to be applied a liquid roofing
system that the person knows or with the exercise of reasonable care should know contains
at least one-tenth of one per cent by weight or volume of any diisocyanate on a building
that is owned or operated by a public school while a teacher or student is present in the
building.
B. A person shall not knowingly allow any teacher or student to remain in a
building that is owned or operated by a public school during, and for at least two hours
after, a liquid roofing system has been applied that the person knows or with the
exercise of reasonable care should know contains at least one-tenth of one per cent by
weight or volume of any diisocyanate.
C. Current material safety data sheets must be supplied to the school prior to the
application of liquid roofing systems containing more than one-tenth of one per cent by
weight or volume of any diisocyanate on a building owned or operated by a public
school. Applicators of liquid roofing systems must follow all applicable occupational
safety and health administration regulations. All federal, state, and local regulations
governing the use, shipment, and disposal of diisocyanates shall be followed and strictly
adhered to.
D. A person who violates this section is guilty of a class 2 misdemeanor.
E. For the purposes of this section, "diisocyanate" means any diisocyanate used in
a liquid applied roofing system including methylene bisphenyl diisocyanate, also known as
methylene diphenyl diisocyanate or MDI, polymeric methylene bisphenyl diisocyanate, also
known as polymeric MDI, or hexamethylene diisocyanate or HDI.
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