The LaSalle Bristol XTRM roof membrane like part # 344270341415, is 27 MIL which makes it about 0.68 mm thick. This is not a kit and is just the membrane. For the rest of the components to install the membrane you'd need the part # AL63FJ and you'd be set. This includes adhesive, self leveling sealant, non sag sealant, and butyl tape. view full answer...
The dimensions of Ventline Exterior Wall Vent for RV Range Hood # V2111-03 are shown in the linked photo I prepared for you. Mounting hole spacing is also indicated. Overall edge to edge dimensions are 5-1/4 x 11-5/8-inches and the vent fits an RV wall opening of 10-1/4 x 3-1/2-inches.
Mounting screws # 31071 and white silicone sealant # 0160297 to complete the installation are sold separately.
The sealant can be used as both an adhesive (by placing a narrow bead on the mounting flange... view full answer...
Just the membrane roll of the # 344270KIT35 that you referenced weighs 11 lbs.
This kit comes with the butyl tape and the sag and self-leveling sealant as well so that would not be needed. You also can put down seam tape if you wanted as well. view full answer...