Instructions / Assembly

Installation Instructions
Spin Flashing Kit
2 of 2
nails. Use nails long enough to penetrate through the Retro-Spin Flashing and into the roof deck a
minimum of ¾″. Pre-punched nail holes provide placement guides for the fasteners.
Continue the installation of the roof system. Apply paint to the Retro-Spin flashing to match roof color and
protect the metal.
All Retro-Spin Flashings include a 3″ diameter opening, and since not all roof penetrations fit snugly, it is
necessary to counter flash the penetration using a waterproof EPDM Retro-Split Storm Collar.
A Retro-Split Storm Collars include a molded top plug with the exact geometric shape and size to for the
roof penetration. It is necessary to order the correct size Retro-Split collar plug in order to maintain a
waterproof roof flashing assembly.
To install the Retro-Split Collar place the EPDM wrap-around skirt around the roof penetration with the
five tabs facing up, and then push the locking ends together. Next, open the cut plug and form it around the
roof penetration making sure that the tab slots are facing downward. Close the plug loosely and insert the
skirt tabs up into the tab slots. Wetting the tabs with a little water can make the assembly a little easier.
Finally, fully open the stainless-steel hose clamp using a screw or nut driver. The Retro-Split Plug has pre-
molded channels that will accept the width of the stainless-steel hose clamp. Position the clamp. Use the
worm drive action of the stainless-steel clamp to tighten the clamp onto the now assembled Retro-Split
skirt and plug assembly.
Before tightening the assembly, slide the Retro-Split Collar down over the already installed Retro-Spin
Flashing. Do not force the Collar too tight onto the flashing. This can cause the skirt to open via the
wedge action of the flashing cone. When the collar is in the correct position, tighten the clamp. The
compression of the clamp onto the plug tabs of the skirt hold fast against the penetration. Do not distort the
assembly with too much torque
Because of the shrinkage of the EPDM rubber, and differences in temperature at each job site, the plug cut
may not automatically push together. When tightening the clamp, use finger pressures to push the plug cut
completely closed, and push the cut together.
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