Roof Thimble Installation

Length may be customized for variable wall and roof thickness.

Roof thimble installation. Mvt ventilated thimble assembly. Available in stainless steel. 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. It supports up to 35 ft.

Install the thimble through the penetration so that the exterior flashing is flush to the roof wall clocking as needed. Installation changes from a sloping or horizontal to vertical. Install the interior flashing and clock as desired. Thimble to extend a minimum of 9 on each side of wall or roof.

Use a firestop support or roof support for this purpose. Dme offers a heavy duty style roof wall exhaust pipe thimble for combustible applications. Duravent duraplus 6 in. Standard construction carbon steel with high heat black enamel finish.

Can be fit to roof curbs and or roof pitch. Fabricated with a 2 thick 2300 degree rated high temperature insulation with built in pipe guide eliminating hot spots. Note ensure that the exhaust piping is not in contact with the inner wall of the thimble. 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.

Here we are putting a thimble in the roof of a 5th wheel trailer for a chimney which runs through a cabinet. With thimble installed and fastened to roof wall insert exhaust piping through the id hole of the thimble. Catalog standard thimbles modeled for 8 thick wall and or flat roofs. Roof wall thimble.

Ampco installation guide 2 mb pdf performance data 63 kb pdf for use where pipe passes through a combustible roof or structure. Compact design meets nfpa 37 requirements features. Ensure that enough exhaust piping is installed to be able to install the rain cap and clamp. A firestop is necessary at every point where.

Apply a bead of hi temperature rated sealant mil a 46106b 100 series rtv around the perimeter of the interior. When penetrating the ceiling ensure that all manufacturer s recommended clearances are maintained and that all local and national building code specifications are followed. Dme offers a heavy duty style roof and wall thimble for combustible applications. Also guides the chimney 6 above the roof line.

Standard is carbon steel stainless steel available. Of pipe not included. Mvt ventilated thimble assembly. How to interpret part numbers specifications.