Originally coal or tar pitch was used to seal these fixtures to the roof deck which is where the pitch pocket gets its name today installers may pour hot asphalt or grout into the top of the pocket to form a tight seal.
Pitch pocket roof detail.
By filling all the gaps between the base of the pocket and the roof the asphalt prevents water from leaking into the roof.
Step by step of how to install pitch pocket on tpo roof.
Multi ply roof system cross section adhered insulation in ftr 601 adhesive w sbs base ftr das2mp.
Apply a bead of m bond at the base of the penetration and then prime the penetration with m bond 3 so it shows 1 above the m curb after it is installed.
Choose the proper curb size.
This detail is suggested to specify the configuration construction and materials required for a pitch pocket.
Multi ply roof system cross section adhered insulation in asphalt ftr das1mp pdf dwg.
This detail is referenced on the roof plan.
Allow a minimum of 1 clearance from the inside of the curb to the penetration.
Using our prefabricated pitch pans results in your crews not having to sacrifice quality for time savings.
This detail can eliminate the need for specifications covering these conditions.
Once the edges of the curb are sealed the newly created pitch.
Drawing title drawing download.
Also known as pitch pockets our standard sizes are hand welded and made from 60 mil tpo and pvc.
Seal and prime penetration.
The detail should be modified to show the actual type of roofing on the project.