Roof Thimble Installation

Mvt ventilated thimble assembly.

Roof thimble installation.

A firestop is necessary at every point where. Dme offers a heavy duty style roof and wall thimble for combustible applications. Standard construction carbon steel with high heat black enamel finish. Dme offers a heavy duty style roof wall exhaust pipe thimble for combustible applications.

Use a firestop support or roof support for this purpose. Roof wall thimble. Mvt ventilated thimble assembly. Fabricated with a 2 thick 2300 degree rated high temperature insulation with built in pipe guide eliminating hot spots.

Install the interior flashing and clock as desired. Note ensure that the exhaust piping is not in contact with the inner wall of the thimble. Duravent duraplus 6 in. Install the thimble through the penetration so that the exterior flashing is flush to the roof wall clocking as needed.

Apply a bead of hi temperature rated sealant mil a 46106b 100 series rtv around the perimeter of the interior. Insulated wall thimbles are designed so the thimble assembly will reduce the minimum 18 inch clearance to combustibles to a minimum of at least 2 clearance. It supports up to 35 ft. Standard is carbon steel stainless steel available.

Also guides the chimney 6 above the roof line. Compact design meets nfpa 37 requirements features. Ampco installation guide 2 mb pdf performance data 63 kb pdf for use where pipe passes through a combustible roof or structure. With thimble installed and fastened to roof wall insert exhaust piping through the id hole of the thimble.

Thd sku 550152. Fabricated with a 2 thick 2300 degree rated high temperature insulation with built in pipe guide eliminating hot spots. Available in stainless steel. Ensure that enough exhaust piping is installed to be able to install the rain cap and clamp.

Catalog standard thimbles modeled for 8 thick wall and or flat roofs. Installation changes from a sloping or horizontal to vertical. Length may be customized for variable wall and roof thickness. Here we are putting a thimble in the roof of a 5th wheel trailer for a chimney which runs through a cabinet.

Can be fit to roof curbs and or roof pitch. Basic stove vent kit includes everything except the pipe for a straight vertical through the roof stove pipe installation. When penetrating the ceiling ensure that all manufacturer s recommended clearances are maintained and that all local and national building code specifications are followed. You should pack insulation snugly against the outside box frame of the thimble but never place insulation into the area within the thimbles s cylinder.