Metal Roofing
Synthetic underlayment for metal roof systems
Metal roofing generates significantly more heat transfer than asphalt shingles. Arkint Armour synthetic underlayment is engineered with a temperature range up to 240°F — protecting the deck without softening, sagging, or losing grip under standing seam, corrugated, or stone-coated metal panels.
Why metal roofing demands a high-performance underlayment
Metal roofing panels absorb and conduct heat far more efficiently than asphalt shingles. On a hot summer day, the underside of a metal panel can exceed 200°F. A standard spun-bonded polypropylene underlayment may soften, wrinkle, or bond to the deck under these temperatures — compromising both the moisture barrier and future serviceability.
Arkint Armour uses a coated woven polyolefin construction that maintains dimensional stability across a wide temperature range. The non-perforated, continuous barrier sheds condensation from metal panels while allowing the roof assembly to breathe as specified by the metal roofing manufacturer.
Key features for metal roof installations
- Temperature rated to 240°F — handles the thermal load of metal panels without softening or sticking to decking.
- 180-day UV exposure — stage the deck before metal panel delivery without compromising the barrier.
- Dimensional traction surface — the nodular walking surface keeps crews moving safely on metal-ready decking.
- No static cling — the woven surface eliminates the static that makes placing metal components on spun-bond underlayments slower.
