Dme offers a heavy duty style roof wall exhaust pipe thimble for combustible applications.
Generator roof thimble.
Thimbles provide transitions for exhaust piping where it is necessary to pass exhaust pipe through walls and roofs safely to the outside atmosphere.
All inexhaust thimbles conform to nfpa 37 and 110.
Available in stainless steel.
Custom roof thimble lengths are available upon request.
Exhaust piping that passes through any combustible roof must be separated from the roof by a ventilated metal thimble that is at least 6 inches in diameter larger than the piping.
Size a dwg no iecwt rev 0 sheet 1 exhaust components ltd is prohibited of 1 industrial exhaust components ltd.
Apply a bead of hi temperature rated sealant mil a 46106b 100 series rtv around the perimeter of the interior flashing that will be in contact with the roof wall and is a minimum of one inch from the edge of the flashing.
Hapco insulated exhaust roof and wall thimbles are recommended for use with exhaust pipes that must pass through a structure.
Also guides the chimney 6 above the roof line.
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.
Mvt ventilated thimble assembly.
Before installing you should obtain the most up to date copies of local codes applicable to generator set or other applicable installation.
Pitched roof thimbles available contact factory for more details.
Ampco installation guide 2 mb pdf performance data 63 kb pdf for use where pipe passes through a combustible roof or structure.
The thimbles prevent exhaust pipe heat from being transmitted to the combustible material.
Install the thimble through the penetration so that the exterior flashing is flush to the roof wall clocking as needed.
The thimble must extend at least 9 inches 229mm 10 inches 250mm recommended above and below roof construction.
Wall and roof thimbles provide transitions where it is necessary to pass exhaust pipe through walls and roofs safely to the outside atmosphere.
Picture of gt exhaust thimble.
Roof thimbles have been designed for standard 8 thick roof applications.
Inexhaust thimbles conform to nfpa 37 and 110.
One thb one fr one vtf and one vsc.
Alz or galv 304 316.
Thimbles are critical in complying with local fire and safety regulations by protecting wall and roof material from exhaust pipe heat.
All dimensions are in inches.
