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Thunderbird RD2NH 2 in. Bottom Outlet Roof Drain, Stainless Steel with TPO or PVC Clad
Regular price $235.50Orders start at $399 — combine any items to reach the minimum. Learn more
Thunderbird RD2NH 2 in. Bottom Outlet Roof Drain, Stainless Steel with TPO or PVC Clad
The Thunderbird RD2NH is a 2-inch bottom outlet roof drain in a TPO- or PVC-clad stainless steel body for low-slope membrane roofs. It is sold as one piece. It pairs with single-ply membrane roof assemblies requiring a bottom outlet drain.
Key Features:
- 2 in. outlet: 2-inch bottom outlet configuration for drainage piping below the roof deck.
- Stainless steel body: Stainless steel construction for corrosion resistance.
- TPO or PVC clad: Clad options allow direct welding into TPO or PVC membranes.
- ICC-ES listed: Thunderbird references ICC-ES evaluation for its drain products.
- Membrane ready: Designed for integration with single-ply roof systems.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Thunderbird |
| Sell unit | 1 piece |
| Product line | RD2NH |
| Nominal size | 2 in. bottom outlet |
| Material | Stainless steel with TPO or PVC clad |
| Outlet type | Bottom outlet |
| Intended use | Roof drainage for single-ply membrane systems |
Fit and Compatibility:
Designed for TPO or PVC single-ply membrane roof systems; select the clad variant matching the membrane. Compatible drain bodies, domes and accessories sold separately as needed.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One RD2NH 2-inch bottom outlet roof drain.
Q: What outlet size is it?
A: 2-inch bottom outlet.
Q: What cladding is available?
A: TPO or PVC clad stainless steel; choose to match the membrane.
Q: How is the membrane attached?
A: The clad skirt is welded or adhered into the single-ply membrane per manufacturer instructions.
Q: Is it code listed?
A: Thunderbird references ICC-ES evaluation for the product; verify the report for your project.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Bottom outlet drains like the RD2NH suit decks where piping runs below the structure, as opposed to top-outlet drains through the deck interior. Match the clad material to the field membrane to keep the weld consistent, and confirm the drain size against the roof drainage calculation before ordering. Verify the ICC-ES report number for the specific clad variant.
Roof drain installation may require work near openings and use of sealants and welding equipment; follow applicable safety practices and local plumbing codes.
Order the Thunderbird RD2NH 2 in. bottom outlet roof drain for your single-ply roof project.
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