PORTALS PLUS
Frequently asked questions
Common questions about PORTALS PLUS from 3G Electric.
What pipe diameters can Portals Plus round-base boots accommodate?
Portals Plus round-base boots are available for pipe diameters from 2 3/4 inches up to 6 inches. For example, the 8-inch diameter EPDM boot (MPN 42500) fits pipes up to 2 3/4 inches, while the 14.5-inch diameter EPDM boot (MPN 11025) accommodates pipes up to 6 inches. Some models, such as the 14-inch aluminum boot (MPN 4YN31), are designed for multiple pipes with a maximum individual pipe size of 2 inches. The specific maximum pipe size is listed in each product's specifications.
What is the difference between EPDM and neoprene collars in Portals Plus boots?
EPDM (ethylene propylene diene monomer) and neoprene are both synthetic rubbers used for weatherproofing. EPDM offers excellent resistance to UV radiation, ozone, and extreme temperatures, making it a common choice for outdoor roofing applications. Neoprene provides good resistance to oils, solvents, and weathering, though its temperature range may differ slightly. Portals Plus offers boots with either collar material, such as the EPDM model 11025 and the neoprene model 12025, both for 6-inch pipes. Selection depends on the specific environmental and chemical exposure conditions of the installation.
Are Portals Plus roof vent pipe boots suitable for flat roofs?
Yes, Portals Plus round-base boots are specifically designed for flat roofs. Their round base allows for installation on flat surfaces, and the collar seals around the pipe to prevent water intrusion. Models like the 14.5-inch EPDM boot (MPN 11025) and the 14-inch aluminum boot (MPN 4YN30) are intended for flat-roof applications. The base can be secured to the roof membrane using appropriate adhesives or fasteners, following the manufacturer's installation instructions.
What does 'open top' versus 'closed top' mean for Portals Plus boots?
The top opening designation refers to the configuration at the upper end of the boot where the pipe exits. An open top means the collar is open, allowing the pipe to extend through and beyond the boot, which is typical for vent pipes that need to remain open to the atmosphere. A closed top means the collar seals around the pipe, providing a finished, weathertight closure. For example, the 13-inch EPDM boot (MPN 42510) has a closed top, while the 14.5-inch EPDM boot (MPN 11025) has an open top. The choice depends on whether the pipe requires an open vent or a sealed termination.
Can Portals Plus boots be used for multiple pipe penetrations?
Yes, certain Portals Plus round-base boots are designed to accommodate multiple pipes. The 14-inch aluminum boot (MPN 4YN31) can seal up to four pipes with a maximum individual pipe diameter of 2 inches. This type of boot is useful when several small pipes or conduits penetrate the roof in close proximity. For single-pipe applications, models like the 14-inch aluminum boot (MPN 4YN30) handle one pipe up to 6 inches. Always verify the number of pipes and maximum size in the product specifications before ordering.
What materials are used in Portals Plus roof vent pipe boots?
Portals Plus boots typically consist of a metal base and a flexible collar. The base can be aluminum or other metals, while the collar is made from EPDM or neoprene. For instance, the 14-inch aluminum boot (MPN 4YN30) has an aluminum base and an EPDM collar. The 11-inch neoprene boot (MPN 12015) uses a neoprene collar. These materials are chosen for durability and resistance to weathering. The specific material composition is listed in each product's specifications to help with compatibility and performance assessment.
