Molded of weather-resistant E. Seismically rated curbs help insure that equipment will remain intact and functional after a seismic event. Single or double dome designs are thermoformed from acrylic plastic and available in clear colorless, translucent white, and solar bronze. Heavy-gauge galvanized steel counterflashing. Thermal models are double dome. Precision molded to fit actual pipe sizes, integral mechanical lock to cover with Weather-Tite Pressure Seal, allows flexibility in any direction while maintaining pipe seal. The conically-shaped steps of the nipple s provide a taut waterproof seal around the pipe s and the furnished stainless steel clamp s give added protection to guarantee the pipe seal s.
Penetrations followed by flex duct within rated floor-ceiling assembly
Locate the fan as close as possible to the area it will be serving in order to limit any long or twisted duct runs. Allows proper structural support rather than on the roof surface where damage will occur. Eave Conditions 9. And of course, protect your equipment, yourself, and those around you by observing all safety information. If the project is in the US, it is most likely subject to compliance with the International Building Code. All supports, fan adapters, hood connections, fittings and expansion joints required to install grease duct shall be included. Register now while it's still free!
Duct Mounting Pedestals | RPS
It is also very important to avoid unnecessary transitions and turns in the ductwork near the fan inlet. Roof curbs should be connected to structural roof members with at least four lug screws, anchor bolts, or other appropriate fasteners per curb flange. Furnish single-wall, factory built, grease duct for use with Type I kitchen hoods, which conforms to the requirements of NFPA Some means for collection such as an exhaust fan grease box must be provided. Mounting Pedestals.
Duct Mounting Pedestals
Description: The copper base flashing extends a maximum of 4" onto the roof. With sloped roofs, the general approach is to attach the flashing before the roofing is installed. Maybe I poke three holes close together and insert into each one a short steel pipe inside the holes for whatever reason I don't know. Much obliged for any information.