Installing Landmark - five course pattern, alternate closed cut valley & skylight flashing
Landmark Installation
This installation video reviews five course application of CertainTeed's Landmark shingle product, as well as alternate closed cut valley and skylight flashing application.
As the chill of winter approaches, homeowners face a trio of seasonal threats: ice dams, moisture buildup, and heat loss. These issues don’t just compromise comfort—they can lead to costly repairs and energy bills.