Sealtight Protection Course is a multi-ply, semi-rigid board composed of a mineral-fortified core formed between a liner of asphalt-saturated felt and a glass mat liner.
These tough, durable, panels are specifically designed to protect delicate waterproofing materials from normal construction damage from traffic, movement of adjacent substrate or backfilling.
It is also used in between-slab construction; plaza decks, roof terraces, promenade decks, pedestrian concourses, tunnels, mechanical rooms, parking garage decks.