Exhaust thimbles provide protective transitions for piping (stack) where it is necessary to pass through walls and/or roofs safely to the outside atmosphere. Intended for roofs & walls with non-combustible materials. Thimble provides a weather-tight seal when used with hi-temperature sealant.**
Thimbles are critical in complying with local fire and safety regulations by protecting wall and/or roof material from exhaust tube heat. All inExhaust thimbles conform to NFPA 37 and 110.
Catalog standard thimbles modeled for 8” thick wall and/or flat roofs. Thimble to extend a minimum of 9” on each side of wall or roof.
*Customizations: Can be fit to roof curbs and/or roof pitch. Length may be customized for variable wall and roof thickness. Standard is carbon steel, stainless steel available. Call for estimate.
**Pipe and/or tube not included with thimble, but may be ordered separately from factory. Sealant not included.
Alternative names for thimbles: stack, chimney, stack insulator