105(1)In this section and sections 106 and 106.1
“fall-restraint system” means a mechanism
(a)
that restricts the movement of an employee so that the employee is prevented from falling from the work surface, and
(b)
that meets the requirements of subsection (6);
“unguarded edge” means an edge of a roof that is not guarded by a guardrail;
“warning line” means a warning line that meets the requirements of subsection (5);
“weatherproofing” means the application of tar, gravel, insulation, shingles or membrane material to a roof but does not include the installation of decking material or the stripping of materials from the roof.