Design team proposes cool roofs, green roofs and cool pavements as added heat-mitigation measures

The design team walked council through conceptual heat-mitigation options included in the 50% design, including cool-roof coatings, green-roof concepts and cool pavement trials. Regina said cool roofs reflect sunlight and can reduce cooling loads, adding that "this one as well because it's already light, to begin with, the color of the whole room is already light, then, there's not much energy savings that's expected for this specific building." She noted cool roofs typically last about 20'25 years.

Staff emphasized that green roofs require sufficient structural capacity and water management and can conflict with local firewise preparedness; they also highlighted cost tradeoffs. Council asked for roof-age and ownership clarifications (school district property requires district permission), and staff agreed to report back with roof-condition specifics and feasibility for each municipal site.