Insulated Series

Nystrom I-Series fire-rated, insulated access doors provide access through openings in fire-rated vertical or horizontal surfaces.

UL listed "B" label for 1-1/2 hours in vertical surfaces
(maximum temperature rise to 250єF in 30 minutes).
Warnock-Hersey listed for 3 hours in horizontal surfaces.

Access Doors: Fire-Rated: I-Series: IT

Nystrom I-Series: IT fire-rated, insulated access doors provide access through openings in fire rated vertical or horizontal surfaces.

UL Listed "B" label for 1-1/2 hours in vertical surfaces (maximum temperature rise to 250єF in 30 minutes).
Warnock-Hersey listed for 3 hours in horizontal surfaces

IT fire-rated access doors are designed with a one inch exposed flange for flush installation in any vertical or horizontal surface.

Access Doors: Fire-Rated: I-Series: IW

Nystrom I-Series: IW fire-rated, insulated access doors provide access through openings in fire rated vertical or horizontal surfaces.

UL Listed "B" label for 1-1/2 hours in vertical surfaces (maximum temperature rise to 250єF in 30 minutes).
Warnock-Hersey listed for 3 hours in horizontal surfaces

IW fire-rated access doors are manufactured with a tape in bead flange for a concealed appearance in vertical or horizontal drywall surfaces, leaving only the door exposed.

Access Doors: Fire-Rated: I-Series: IP

Nystrom I-Series: IP fire-rated, insulated access doors provide access through openings in fire rated vertical or horizontal surfaces.

UL Listed "B" label for 1-1/2 hours in vertical surfaces (maximum temperature rise to 250єF in 30 minutes).
Warnock-Hersey listed for 3 hours in horizontal surfaces

IP fire-rated access doors are manufactured with plaster casing bead frames for a concealed appearance in vertical or horizontal plaster surfaces, leaving only the door exposed.

I-Series Order Guide