Drip Trim is mainly about controlling where rainwater leaves the roof or wall edge. The profile should create a clear path for water to move away from the panel instead of allowing it to run back onto the wall, flashing or insulation area. For projects in the GCC, where heavy rain can occur even after long dry periods, the drip detail, overlap and installation position are important for keeping the building envelope dry.
Which Flashing Material Is Better?
Factor
PPAL (Aluminium)
PPGI (Galvanized)
Weight
Lightweight
Heavier
Corrosion Resistance
Very high
Good with suitable coating
Strength
Good
Higher
Coastal Use
Excellent option
Requires suitable corrosion protection
Installation
Easier to handle
More rigid and heavier
Cost
higher than PPGI
lower than PPAL
Best Choice When
Corrosion + low weight matter
Strength + budget matter
Emaar Industries Cold Rolled Solutions are manufactured for steel buildings, PEB structures, warehouses and industrial projects where accurate steel profiles are required for the roof and building envelope. The range includes Profile Sheets, C & Z Purlins and Decking Sheets, allowing engineers to source key cold-formed steel components directly from the manufacturer.
Why is a Drip Trim important on a sandwich panel roof?
It gives rainwater a controlled exit point at the roof edge and helps prevent water from running back onto the wall or exposed panel edge.
