Salient Features

Water Proofing Membrane (EPDM)
Waterproofing Rubber Sheets
Waterproofing Rubber Sheets

The life of any building is dependent on the designer recognizing and considering all the factors relevant to its location, shape, and function of the building. Reliable roofing is the most important part, which decides the quality & ultimately the life of the building. An efficient roofing membrane should never allow even small traces of water to pass through at any given point and should maintain this characteristic over a long period of time. It should withstand slight movements of the structure, bad weather, chemical degradation and mechanical stress and strains.

ZENA-SEAL withstands extremes of temperature

“ZENA-SEAL, owing to its EPDM base polymer, maintains its performance consistently across a broad spectrum of temperatures (-40° C to +130° C). Hence it does not become brittle in freezing weather nor exhibit cracks in hot weather."

ZENA-SEAL lasts for more than 20 years

“Presently in our country, asphalt-based coating is employed in many buildings to protect the roof from leaking. However, the life of such waterproofing is limited, and the coating must be replaced every 2 to 3 years because of poor dimensional stability of asphalt in extreme temperatures. ZENA-SEAL EPDM Waterproofing membrane stands out for its exceptional water and weather resistance, ensuring longevity. With its excellent dimensional stability, these roofing membranes are crafted to endure for over 20 years.”

Maintenance Free Waterproofing

“As the ZENA-SEAL EPDM Rubber Sheet does not deteriorate due to extreme weather, UV and oxidation, hence no maintenance is required for the roof.”

Resistant to most of the acidic and alkaline conditions for wide range of temperature

“As the EPDM rubber is highly saturated polymer, it has better chemical and environmental resistance than other available polymeric materials. Hence ZENA-SEAL can be used in chemical plants for their drainage and canal systems to avoid seepage through the RCC / CONCRETE work which in turn can damage surrounding fields.
The following table shows the comparative properties of EPDM waterproofing sheet against other materials used for roof protection.”

Properties ZENA-SEAL EPDM Roofing ZSWP 100 PVC Roofing Modified Bitumen Roofing BUR Roofing
(Bituminous built up Roofing )
UV resistance E P-F F G
Ozone resistance E E F F
High Temperature resistance E E F F
Cold Crack E F-G P P
Resistance to Plasticizer Migration E F-G P P
Dimensional E P-F F F
Install over existing roof. Yes Yes Yes No
NA = Not Applicable, E = Excellent, G = Good, F = Fair, P = Poor