is the treatment to surface or structure
to prevent the passage of water under hydrostatic
pressure. The water proofing must keep the water
from penetrating into the building.
The most popular roofing system in the Middle-east
is the IRMA or the inverted membrane
roofing assembly where the insulation board is
placed over the waterproofing membranes, protecting
it from the extreme thermal variations. IRMA
Inverted roofing system keeps the membrane
and roof structure warm, eliminating the risk
of surface and interstitial condensation.
In Conventional roofing system the Insulation
is placed under the roofing membrane assembly.
Water proofing may be performed by the
Conventional Built Up Roofing System
2. Elastomeric Single Ply
3. Plastomeric Single Ply
Polymer Modified Bituminous Membranes