Cracked flashing around chimneys and vents on 1960 and 1992 roofs
Why it happens here
Sealant dries and flashing lifts with deck movement in heat on Lassen, and chimney and vent joints on both single-family and multi-unit roofs are the usual entry points.
Our approach
Joints on Lassen are rebuilt with new metal and counter-flashing and water-tested, per building, not covered with more sealant.