Van Winkle with her husband, Lance
A mechanical seal provides a watertight connection to the existing drain leader.
The seal expands as it is tightened in place and exceeds the ANSI/SPRI RD-1 standard
of holding a 10-foot column of water without leaking for 24 hours.
Photo courtesy of OMG Roofing Products, Agawam, Mass.
In place of a traditional clamping ring, a TPO target sheet is hot-air welded to
a TPO coated flange as one of the final steps to a retrofit roof drain installation.
Wire brushing an old cast-iron strainer is one of the many steps of the reworking
This image shows the typical components of a retrofit roof drain, which include
a strainer, clamping ring, flange studs, drain flange, drain stem and mechanical
Depending on the application, a scupper-style retrofit roof drain is just one of
the options available to commercial roofing contractors.
The 80-year-old patina copper roof system before replacement
Photo courtesy of RGT Enterprises Inc., West Hanover, Mass.
Pictured top to bottom: New 20-ounce double-locked standing-seam copper panels were formed on site; an aerial view of the completed copper roof system
Photos courtesy of RGT Enterprises Inc., West Hanover, Mass.
Milton Post Office, Milton, Mass.