Rooftop Electrical Service Flashings

Overview

We specialize in rooftop electrical service retro-fit flashings for all types of roofs, including electric service flashings from ASI Products and Aztec. These electric service entrance mast flashings are designed for all types of roofs including asphalt single roofs, built up roofs and cap-sheet roofs, but fit many other applications.

Best Materials stocks all the key materials you need and can ship quickly anywhere. We specialize in suppling large or small quantities direct to any site at the best prices. Email [email protected] for a quote on any project.

Applications:

The innovative Retro-Spin Flashing System enables roof repairs without disconnecting the Retro-Spin Electric Service Flashing Kits, from Best Materialselectrical service, saving thousands of dollars and great inconvenience.

These systems are ideal for use in existing or new construction for electrical conduit flashing, vent pipe flashing, equipment supports, and all types of retrofit flashings.

We can quickly ship you large or small quantities to most any location.

Electrical Service Flashing Products:

• Aztec EMC Electrical Mast Rubber Flashing
• Retro-Spin / Collar Flashing Kits - complete kits collar + base.
• Retro-Spin Flashing - Metal Base Only

• Retro Collars / Storm Collars (collars only)
• Storm Collars, Multi-Pipe Flashings - 3/8 to 7/8 inch.

Installation / How to Install Retro Pipe Flashing:

Lift or remove the roof tiles which will overlap top of metal flashing. Clean area as needed to assure good sealant adhesion. Apply M1 sealant or butyl sealant under the metal flashing base. Slip on the metal retro-spin flashing base. Close the base around pipe so that the "door" faces downhill. Be sure M1 sealant creates a seal to the underlayment. Nail flashing along upper area. Add an additional bead of M1 at the metal edge and over nail tops. Seal the "door" edges with M1 sealant, or solder closed. Open and wrap both EPDM Retro-collar pieces around the pipe (upper collar and also the skirt).

Push the both the top collar and skirt units together (they interlock like a puzzle and have an internal sealing lip). Add a bead of M1 at the top collar mate point as needed. Attach the metal clamp and tighten. Inspect to see that there is no gap in the top-collar. Trim shingles. Apply M1 sealant and re-attach shingles along the top area. Seal again at the shingle perimeter with M1 sealant.

 

 

 

 

 

 

 

 

 

 

 

 

Related Products and Items:

• Eternabond Flashing Tape
• Flashing Tape, Aluminum Faced
• M1 Roofing Adhesive Sealant and Caulking
• Pipe Flashing Boots
• Solar and Multi-Wire/Pipe Flashings


 

 

 

• Retro-Fit Flashing Boots


 

 

 

• Chemcurbs: For all types of multiple and odd penetrations.

New: Top of the line lead pipe flashings, lead roof flashings, lead vents, lead scuppers, lead sheet, lead plumbing vents and other lead roofing products for the longest life performance.

Sizing Pipe Flashings: Sizes are based upon national standard pipe sizes (NPS). Copper and brass pipe dimensions are different.

Standard Pipe Sizing:

Pipe Size:	Outsie Diameter:
1/2 inch	=0.840 inch o.d.
3/4 inch	=1.050 inch o.d.
1 inch	=1.315 inch o.d.
1-1/4 inch	=1.660 inch o.d.
1-1/2 inch	=1.900 inch o.d.
2 inch	=2.375 inch o.d.
2-1/2 inch	=2.875 inch o.d.
3 inch	=3.500 inch o.d.
4 inch	=4.500 inch o.d.
5 inch	=5.563 inch o.d.
6 inch	=6.625 inch o.d.
8 inch	=8.625 inch o.d.
10 inch	=10.750 inch o.d.
12 inch	=12.750 inch o.d.