The MIFAB R1100 is an 8-in. lacquered cast iron roof drain used in any type of flat roofs and gutters. The 8-in. diameter body is ideal for applications with limited space. The dome provides efficient drainage of rainwater and prevents debris from entering the drain line. The anchor flange and membrane clamp with tongue in groove design provides for a secure grip of the membrane and roof flashing materials.

The R1100 includes:

• An anchor flange.
• Cast iron waterproofing membrane clamp ring with integral gravel stop.
• A standard self-locking polyethylene dome strainer with a free area of 43 square inches. 

Outlet Size:

• 2 - 4 in.

Outlet Type:

• No Hub 
• Threaded
• Threaded Side

Dome Type:

• Polydome
• Metal Dome

Mounting Options:

• Sump Receiver
• Underdeck Clamp
• Sump & Underdeck Clamp

Overflow Options:

• 1 x 2-in. Waterdam

Note: Deck opening – 6 3/8 in. with sump receiver – 8.5 in. 

MIFAB R1100 Series meets ASME roof drain standard A112.6.4-2003.

Manufacturer Spec Page