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TRI-BUILT 4 in. Aluminum Heavy Duty TPO RetroDrain
Regular price $414.96TRI-BUILT 4 in. Aluminum Heavy Duty TPO RetroDrain
This is a TRI-BUILT 4 in. Aluminum Heavy Duty TPO RetroDrain, a retrofit roof drain with TPO cladding for use in TPO single-ply roof systems. It has a 4 in. diameter, meets ANSI/SPRI RD-1, and is sold as one piece weighing 32 lb. Pair with compatible TPO flashing and clamping components per the manufacturer's instructions.
Key Features:
- Retrofit design: RetroDrain design allows replacing or adding a drain without a full roof replacement.
- TPO cladding: TPO-clad construction integrates with TPO single-ply membrane roofs.
- Aluminum body: Heavy-duty aluminum drain body for durability.
- 4 in. diameter: A 4 in. outlet diameter for standard roof drainage.
- ANSI/SPRI RD-1: Complies with ANSI/SPRI RD-1, the standard for roof drain performance.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | TRI-BUILT |
| Manufacturer model | HDTPO4A-TRI |
| Sell unit | 1 piece |
| Product line | Heavy Duty TPO RetroDrain |
| Profile / style | Retrofit roof drain, TPO clad, heavy duty |
| Dimensions | 4 in. diameter |
| Material | Aluminum |
| Approvals | ANSI/SPRI RD-1 |
| Weight | 32 lb |
Fit and Compatibility:
Designed for TPO single-ply membrane roof systems; use with matching TRI-BUILT TPO RetroDrain accessories and TPO flashing materials sold separately. Confirm sump placement and drain body size before ordering.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One sell unit is a single 4 in. Heavy Duty TPO RetroDrain weighing 32 lb.
Q: What membrane systems is it for?
A: It is TPO-clad and intended for TPO single-ply roof systems.
Q: What standard does it meet?
A: ANSI/SPRI RD-1 for roof drain performance.
Q: What is the outlet size?
A: The listed diameter is 4 in.
Q: Does it include flashing material?
A: TPO flashing and related installation materials are sold separately; confirm with the manufacturer's installation instructions.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
A heavy-duty TPO RetroDrain is the right choice when adding or replacing drains on an existing TPO roof without tearing out the membrane field. Set the drain to the correct elevation relative to the tapered insulation so water flows to the sump, and detail the TPO cladding per the manufacturer's instructions and NRCA workmanship practice. Confirm local plumbing code requirements for drain sizing and overflow drainage before installation.
Roof drains connect to plumbing systems: coordinate with a licensed plumber and follow local plumbing code and manufacturer installation instructions.
Order the TRI-BUILT 4 in. Aluminum Heavy Duty TPO RetroDrain for your TPO roof.
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