CertainTeed Landmark Series and Landmark TL Installation Manual Product Overview This manual covers the installation of Landmark Series and Landmark TL laminated shingles. Landmark shingles feature the WideTrack QB⢠system, providing a 1.5-inch wide nailing area and Quadra-Bond laminating adhesive. Landmark TL utilizes a patented Tri-Laminate⢠design for a thick, wood-shake style.
