Retro-Split™ the "New Technology"!

Pitch Pans or Pockets are less than Ideal!

  1. Retro-Splits slide on from the side for use on posts, stands, or supports found on existing roofs or newly installed equipment.
  2. Retro-Split Storm Collars are installed using standard labor.
  3.  Retro-Splits are made of a material compatible with any metal, without worry of corrosion, rust or bi-metal reaction.
  4. Sharp dangerous cutting edges do not exist on any ASI Storm Collars.
  5. ASI Storm Collars spring back into place in the event of impact by tools, workers or pedestrians who may accidentally bump into the storm collar.
  6. ASI Storm Collars have an appearance that enhances the building design and can match the roof coverings color scheme.
  7.  ASI Storm Collars have a life expectancy of at least 20 years, or in excess of the life span of the roofing product itself.
  8. Retro-Split Storm Collars can be removed and then re-installed many times, allowing repair and/or maintenance to the penetration or roof structure.
  9. "Storm Collars", "Hoods" or "Umbrellas" are listed "By Others" (e.g. NRCA, GAF, & Firestone) in almost every roof design handbook. ASI Storm Collars are therefore approved by default.

All Style Industries patented Retro-Split™ Storm Collar

(# 6640503 & 6591561) are used to weatherproof roof penetrations that cannot easily be taken apart or disassembled. Our patented storm collars are designed to counter flash a roof jack flashing that has been installed into a roofing system when an "over the top" installation is not possible or desired. Retro-Split™ Storm Collars open to allow an installation from the side. By utilizing our patented "push together" skirt locks the collars can wraparound any geometric shape penetration.

Commercial Retro-Split™ Storm Collars

All Style Industries

Roof Accessories

702-570-5520

"Storm Collars", "Hoods" or "Umbrellas" are listed "By Others" (e.g. NRCA, GAF, & Firestone) in almost every roof design handbook.


ASI Storm Collars are therefore approved by default.

We can match your roof color!


Black color is standard E.P.D.M.


Other colors on special order.


Send us your requirements.

Retro-Split™ Storm Collars

Three (3) class sizes


  1. Small Retro-Split= 3.0 inch max diameter
  2. .Medium = 6.0 inch maxumum.diameter
  3. .Large = 12.0 inch max. diameter

Our Retro-Split™ wraparound storm collars work great on all sorts of irregular shaped penetrations. Forget old style pitch pan and goop sealer; they're Old Technology!