OMG Roofing Products, a division of OMG, Inc. and leader in commercial roofing accessories and productivity tools, has announced the new OMG ReadySump RetroDrain as an innovative extension to the OlyFlow lineup of retrofit roof drains.
Detail courtesy of the NRCA. Roof drains are provided throughout the roof to remove water from the roof surface. The National Roofing Contractors Association (NRCA) and most membrane manufacturers require