My Account Stradapters
Installs directly into the existing roof opening and transitions up to a new RTU footprint — no roof deck modifications required.

CDI’s Stradapters also known as a Transitional Roof Curb, installs directly into your existing roof opening and adapts up to the footprint of a new RTU. Fully welded in one piece, it provides a seamless, watertight solution that gets your customer up and running fast without costly roof deck modifications.
Why Stradapters?
Seamless Replacement -Fits directly into the existing roof opening and transitions to the new unit above — no roof deck cutting, no structural modifications required.
One Piece Construction -Fully welded for watertight seams with no flat spots for water ponding. Welds are treated with a zinc-rich coating for long-term corrosion protection.
Standard Drawings Online -Access drawings immediately through your CDI account, keeping your project on schedule.
Ships FastSame day to 4 day lead times. Freight included in every estimate.