Balcony Retrodrain

Balcony RetroDrain

PRODUCT DATA SPECIFICATIONS

PRODUCT DESCRIPTION APPLICATION Its unique dimensions allow the Balcony OlyFlow® RetroDrains are designed to RetroDrain to be installed under a paver replace existing drains in reroofing applica- system or areas where foot traffic is tions. Installed from the roof surface, common. The patented RAC Backflow Com- OlyFlow RetroDrains are engineered to be pression Seal provides a proven plumbing installed without removing the existing connection with the existing leader pipe. plumbing or fixture while providing a Available in 3-in. and 4-in. sizes. watertight connection to the roof system and the existing plumbing. FEATURES & BENEFITS • Pre-punched, .080-in. thick 8-in. x 8-in. APPROVALS aluminum drain flange. & STANDARDS PHYSICAL DATA • Strainer design is flat and constructed ANSI/SPRI RD-1 is a national perfor- of .125-in. thick aluminum and is 6-in. in mance standard for retrofit roof drains. The data below is constant for all OMG Balcony diameter. While most retrofit drains are not tested RetroDrains. to this standard, OlyFlow Insert Drains – • The flat strainer works also as a DRAIN BODY SEAL including the Balcony RetroDrain with RAC clamping ring which provides a tight Backflow Compression Seal – exceed the .080" thick aluminum Watertight RAC Backflow compression for terminating for the roof standard, which requires that the seal Compression Seal requires system. 7/16" wrench hold a 10-ft. column of water for 24 hours • Patented RAC Backflow Compression without leaking. FLANGE STRAINER DOME Seal is quickly activated at drain flange 8" x 8" 6" diameter, made of 7 level with a ⁄16-in. wrench and protects .125" thick aluminum the roof and building from water STEM CLAMP RING damage. 9" length .125" thick low profile • Designed to accommodate tight field aluminum conditions. • Saves time and money by allowing easy installation from the rooftop without ORDERING INFORMATION DIMENSIONAL disturbing occupants. SIZE PKG CAT. NO. DOME TYPE WEIGHT IN QTY LBS BDRM3 3 Aluminum 1 20

BDRM4 4 Aluminum 1 20 Balcony RetroDrain

INSTALLATION PROCEDURE

FOR USE WITH STEP 1 STEP 4

Single ply, BUR and modified bitumen systems. Important – The aluminum activation cone Hand tighten the 7/16-in. bolts on the backflow may have settled into the backflow seal during rods to activate the seal. Alternate tightening JOB PREPARATION shipping which may partially activate the seal. between the bolts for an even seal expansion. Measure I.D. of existing drain pipe to determine To deactivate the seal, simply push down on the Rods should be snug when fully activated. Do proper size Balcony RetroDrain to be installed. top of the two backflow bolts. Note: The top not overtighten. The existing leader pipe shall be cleaned of the tapered metal cone should remain inside of excess bitumen build-up, dirt and debris. the bottom of the urethane seal. Do not fully STEP 5 Remove the clamping ring assembly and bolts disengage the cone from the urethane seal. Install roofing material per system manufac- from the existing drain and discard. If required, turer’s drain flashing details. comply with roof manufacturer’s directions for STEP 2 additional cleaning or detailing. Lower the Retrofit Drain Assembly into the STEP 6 existing drain leader pipe until the underside of Install the 6-in. diameter drainage grate by placing the drain flange sits flat on the substrate. grate over the drain and aligning two holes with threaded nuts on “Z” tabs. Install two screws STEP 3 provided with slot head screwdriver. Using the pre-punched holes in the perimeter of the flange, secure the drain flange to the For technical assistance contact . . substrate with appropriate fasteners. OMG at 800 633 3800.

7 /16" Stainless Steel Bolt Heads for Activation of the Backflow Seal Grate Securement Drainage Grate 8" x 8" Drain Flange (Top View) Tabs for Stainless Steel Rods to Activate the Backflow Seal

Existing Drain Bowl Stainless Steel Rods for Backflow Seal Activation Z-Tab Bracket with Threaded Hardware for Grate Securement Compressible Urethane Backflow Seal Cast Aluminum Activation Cone

Superior productivity. 153 BOWLES ROAD, AGAWAM, MA 01001 USA Superior performance. 800.633.3800 413.789.0252 OMGROOFING.COM Rev. 10012018 Rev.