{"product_id":"tri-built-hdtpo4a-tri-tri-built-4-in-aluminum-heavy-duty-tpo-retrodrain","title":"TRI-BUILT 4 in. Aluminum Heavy Duty TPO RetroDrain","description":"\u003ch1\u003eTRI-BUILT 4 in. Aluminum Heavy Duty TPO RetroDrain\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis 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.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetrofit design:\u003c\/strong\u003e RetroDrain design allows replacing or adding a drain without a full roof replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTPO cladding:\u003c\/strong\u003e TPO-clad construction integrates with TPO single-ply membrane roofs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum body:\u003c\/strong\u003e Heavy-duty aluminum drain body for durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 in. diameter:\u003c\/strong\u003e A 4 in. outlet diameter for standard roof drainage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI\/SPRI RD-1:\u003c\/strong\u003e Complies with ANSI\/SPRI RD-1, the standard for roof drain performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTRI-BUILT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHDTPO4A-TRI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSell unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeavy Duty TPO RetroDrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProfile \/ style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRetrofit roof drain, TPO clad, heavy duty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 in. diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eANSI\/SPRI RD-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eDesigned 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.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One sell unit is a single 4 in. Heavy Duty TPO RetroDrain weighing 32 lb.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What membrane systems is it for?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is TPO-clad and intended for TPO single-ply roof systems.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What standard does it meet?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e ANSI\/SPRI RD-1 for roof drain performance.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the outlet size?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The listed diameter is 4 in.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it include flashing material?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e TPO flashing and related installation materials are sold separately; confirm with the manufacturer's installation instructions.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eA 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.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eRoof drains connect to plumbing systems: coordinate with a licensed plumber and follow local plumbing code and manufacturer installation instructions.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the TRI-BUILT 4 in. Aluminum Heavy Duty TPO RetroDrain for your TPO roof.\u003c\/strong\u003e\u003c\/p\u003e","brand":"TRI-BUILT","offers":[{"title":"Default Title","offer_id":53529523388783,"sku":"HDTPO4A-TRI","price":414.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/560438_default_hero.jpg?v=1790350861","url":"https:\/\/superarbor.io\/products\/tri-built-hdtpo4a-tri-tri-built-4-in-aluminum-heavy-duty-tpo-retrodrain","provider":"Super Arbor","version":"1.0","type":"link"}