47185 Ashton Street Sioux Falls, SD 57107

Summer Storage: UV, Heat, and Apparatus-Cab Damage

Two summer habits quietly age turnout gear years ahead of schedule: storing it in sunlight and hauling it in hot apparatus cabs and trunks. Aramid fibers lose strength to UV, and moisture barriers age with every deep-heat cycle.

What does sunlight do to turnout gear?

UV degrades aramid fibers — the same chemistry that makes shells flame-resistant makes them UV-sensitive. Faded gear is not just cosmetic: color loss tracks strength loss. A shell that lives on a sunny rack by the bay window can lose meaningful tear strength in a season without seeing a single fire.

Why are cabs and trunks a problem?

  • Heat soak: closed vehicles reach barrier-aging temperatures on ordinary summer days — repeated cycles embrittle films and laminates.
  • UV through glass adds fiber damage on top.
  • Compression under other equipment creases barriers along the same lines daily.
  • Off-gassing and fuel vapors in trunks add chemical exposure between calls.

What does good summer storage look like?

Shaded, ventilated racks out of direct sun; gear hanging, not compressed; personal vehicles as gear lockers only when there is no alternative — and then in gear bags, out of sunlight, never for weeks at a stretch. For POV-response departments, a gear bag policy is a cheap protection upgrade.

FAQ

How can we tell if UV has damaged a shell?

Visible fade is the flag; strength verification is inspection work — flag suspect garments for the next advanced inspection.

Are window-covered racks enough?

Blocking direct sun helps most; UV film on bay windows helps more. Distance and shade beat glass alone.