Oatey offers a #47700 Underdeck Clamp Kit that is recommended for every roof drain installation. This clamp is placed below the roof and attached to the drain body with 4 pieces of threaded rod, and 4 nuts. Once installed the clamp will secure the drain body in place so that the waterproofing seal is less likely to be compromised. 

No. Waterproofing materials can only be applied in series with our flanged drain assemblies. Please visit our website to select the right drain for your project. 

Yes

Outside diameter   29¾” x 31¾” Inside diameter   27-11/32” x 29-11/32” Depth   2-19/32”   

Yes. The #34169 – 28”x30” pan does not have ribs.

No. It is very unlikely that you would be able to create a watertight patch, and this would void any manufactures warranties. If you need a pan without holes for your application, we offer several pans for you to choose from: 22” Plastic Pans #34066 do not have holes stamped into them. Aluminum Pans are available without holes in all sizes.

28 gauge or .032”

The standard depth for aluminum and plastic pans is 2-½ in. Oatey also offers 3 in. deep plastic pans for areas where 3 in. depth is required by local code. The 3 in. deep pans are available in sizes 18 in., 20 in., 22 in., 24 in., 26 in., 28 in., and 30 in.

We offer 3 different fitting adaptors for our pans:  #34086 - 1” inside & 1½” over PVC Adaptor. This adaptor allows you to solvent weld a piece of 1” PVC or a piece of 1½”PVC pipe into the adaptor. #34088 – 1” inside & 1½” inside PVC Adaptor. This adaptor allows you to solvent weld a piece of 1” PVC pipe into the adaptor, or solvent weld a 1½” PVC fitting hub onto the adaptor. #34089 - 1” CPVC adaptor. This adaptor allows you to solvent weld a piece of 1”CPVC into the adaptor hub. If you need further clarification on these installation options, please contact customer service and they can send you an illustrated copy of application instructions.

You should always check with your local building and fire officials before installing a plastic pan above a finished ceiling. If the return air to the furnace is not isolated through air tight duct work or the open ceiling is used for the return air, the plastic pan should never be used. If the plastic pan is used in these applications and exposed to flames, the toxic smoke can be drawn back to the furnace and distributed throughout the building.