NFPA requires nonflammable trench drains
Life Saftey Choice
Selecting a fire-resistant pre-sloped trench drain system should be common practice for any interior application. Trench Drains are often the collection points for flammable fluids and heavier-than-air vapors. As a result, even empty trenches can act as a pathway for flame spread. For more info, see our Flame and Smoke page.