Types of roofs and their application

Built-up roof
ModifiedBitumen
TPO
PVC
EPDM

Benefits of flat roofs

Aesthetics – apply to residential buildings, apts, condos. usable space
Cost – cheaper than pitched roof
Maintenance – easy to inspect, maintain
Can be more energy efficient

Issues with Flat roofs

Rain/precipitate is an issue
Maintenance – although easier to maintain, must be maintained more often, inspected often for damage
Life of roof – uninspected roof may have issues that severely limit its lifespan