Flat Roof Drainage Done Right: Internal Drains, Scuppers, and Tapered Insulation on Calgary Low-Slope Buildings
Why ponding water is the slow killer of low-slope membranes, and how slope-to-drain, overflow protection, and the right drainage strategy keep an Alberta commercial roof dry. A flat roof is never truly flat, and the ones that come closest are the ones that fail first. Water has to leave the roof faster than weather puts…
