Case Studies

A residential EPDM roof in North Vancouver was leaking at the vents, with screws backing out through the membrane. Here is how we found and sealed the leaks.

A concrete tile roof valley was leaking because debris and moss had dammed the valley flashing and pushed water onto the underlay. Here is how we cleared and fixed it.

Failing flashing patched with mastic, uncaulked B-vent storm collars, plugged drains, and loose coping. The torch-on flat roof problems we find most, and why they leak.

Most hidden gutter leaks come from seams that were nailed and caulked instead of patched properly. Here is how we rebuilt a failing built-in gutter in Richmond with commercial membranes.

This Langley chimney leaked because the original pan flashing was too short and had no containment lip. See how we replaced it with properly bent flashing.

A leaking skylight on a Port Moody tile roof turned out to be debris damming the pan flashing. Here is how we diagnosed and fixed it.