App-Waterproofing FAQs - Deco Roofing Systems Ltd

FREQUENTLY ASKED QUESTIONS ABOUT OUR ZINC-ALUMINIUM STONE COATED TILES.

1. What is an APP membrane?

It is a multi-layer bituminous waterproofing membrane

2. What is the membrane made of?

• A centre carrier in reinforced polyester (extremely strong and with excellent stretching performance)
• Two layers of polymer-modified bitumen (for waterproofing)
• A top layer in ceramic chips (protection from UV rays and atmospheric agents)
• A bottom heat sensitive film (to facilitate the sticking during the blowtorch application)

3. How is it fixed?

• Application of a coat of bituminous anti-dust Verbit Primer to facilitate the sticking of the membranes
• Blowtorch application to the surface for total waterproofing

4. What kind of surface do your require to fix the membrane?

Any flat surface (concrete, T & G, any board etc) properly shaped to achieve good drainage

5. What size is the roll?

1mt x 10mt

6. What is the coverage of one roll?

Approximately 8.7 sq. mt. (because of overlapping) less wastage which depends from the area on which it is applied.

7. What colours do you keep in stock?

Dark Grey only

8. What other colours are available?

Red, White, Green and Brown (on specific order)

10. Do you give any guarantees? Under what conditions?

• 10 years guarantee backed by an international insurance policy (on materials)
• In case we perform the application, we give a guarantee also on workmanship subject to structural soundness of the building plus other conditions

11. What is the life span of the membrane?

The Client should expect 40/50 years of good performance unless the membrane is tampered with, subject to wear-and-tear or there are structural faults in the building.