Delta Trela – Pitched Metal Roof Underlayment – 3’3” x 98’ j drain It is also smooth and

It is also smooth and easy to clean

The SBBC-60AL is weather resistant and includes a patented locking system that accepts padlocks

and livable

The fastener provides superior holding power to prevent tear-out at fastening points during backfill

Designed for use in high-flow

Delta Trela – Pitched Metal Roof Underlayment – 3’3” x 98’ j drain It is also smooth andDelta Trela by Drken is a high performance underlayment designed for pitched metal roofs. Its structured separation layer provides ventilation and drainage, preventing moisture buildup, condensation, and corrosion beneath metal roofing. Made from durable, vapor permeable material, Delta Trela ensures a dry, protected roof assembly while reducing noise and enhancing long term performance. Ideal for residential and commercial applications, it delivers