This membrane is a special waterproofing material that is manufactured from bitumen.It comes in rolls each measuring 10 m by 1 m and covers an area of 8.7 m2. APP membrane is very efficient in waterproofing and it's also durable.
it's used in very many constructions areas as stated below;
Areas of application:
Concrete flat roofs.
Low pitched roofs.
Concrete gutters
Basements
Retaining walls.