. Compare. Z LTD. This product provides a highly sought after aesthetic finish with off-the-shelf sizes and custom made lengths available, all with a. 5m - Trough drain longitudinal. The Allproof Allthrough is a unique solution to meet the requirements of multi-level balcony drainage. Allproof's Vision is a high-grade stainless steel channel drain for bathrooms, while the Horizon is a visually clean grate that hides the contents of the channel. The adjustable bracket system with legs supported on the. The Threaded Leg is a simple, but elegant solution to level threshold requirements. Made from 100% recycled plastic. . An example is Allproof Industries Perimeter Drain, an L shaped channel that can be installed directly against the foundation slab. By Allproof. We love to help with technical questions and provide further product information, however please note that we don’t provide costs direct to the market. Durable cast construction including bronze body, bronze clamp ring and storm series grate. It utilises high quality material including 316 or 304 stainless. The system features a closed sleeve for straight through levels and an open sleeve for levels where the surface drainage needs to be allowed to feed into the downpipe. E2 Compliant channel system for onsite customisation. The Vision Series is a high-grade stainless steel linear channel drainage system with a centre outlet and a choice of 5 grate designs. Send to friend:. Our 100 and 200mm opening polymer concrete slot drain channels are available in a range of sizes and grate options and are highly resistant. Channels come in 1m lengths, the use of joining channels creates a fall along the trench. Available in custom lengths or off the shelf sizes. Allproof. Allproof is proud to bring you the shower floor waste kit with everything you. This document is aimed at architects and designers by outlining the acceptable details for weathertightness around level threshold access. E2 Compliant channel system for onsite customisation. Cast-In Cantilever Bracket. Review Subject. Level threshold channel drain – Perimeter Drain. 2. New Zealand Building code E2/AS1 stipulates the requirements of drainage around level threshold situations and must be adhered to. Level Threshold - Perimeter Drain. Allproof Industries Allproof Industries is a New Zealand family owned manufacturing, marketing and distribution company specialising in Plumbing, Drainage Systems and Fire Protection Products. Compatible with all plumbing and flooring systems in New Zealand. The design has been developed to utilise the strength of the surrounding concrete to create a strong durable solution…. Allproof is proud to bring you the. Allproof Industries manufacture a range of shower drain kits designed specifically for these scenarios. Allproof’s small diameter bronze roof drains have been independently flow rate tested. A large percentage of Allproof Industries products are manufactured by Allproof and supported by local New Zealand. Be the first to review “ALLPROOF CHANNEL INLINE SUMP BLACK” Cancel reply. Allproof's Sureflow and VRTW roof drains now available with 88° side outlets. Description. pdf. Trays can be made with a channel drain or point drain (Allproof Trayrite) with wall upstands or hob entry on required sides. Level Threshold System for building entrances. Level of assurance needed to demonstrate NZ Building Code ComplianceAllproof Polymer concrete channels are designed to be fully compliant with the requirements of New Zealand building code E1. Allproof Industries PC Range utilises polymers to supplement cement as the binder material, this creates a durable product that is highly resistant to a wide variety of chemicals and has extremely low permeability, making it excellent for commercial linear drainage installation. FBINT Flush Box Intumescent Pads. Key Features. Exposed stainless steel shower tray Allproof Industries. Available as a slot drain, with a removable 7 or 9 bar grate or with a tile insert tray. Allproof Industries N. PVC pipe used for height adjustment between clamp ring and grate to suit topping level. It is best practice to seek advice from a specialist hydraulic consultant in this area. Simply butting the L-shaped channel. pdf Drawing. Cast-In Cantilever Bracket…. The Allproof Industries Perimeter Drain is an ‘off the shelf’ level threshold product that removes the process of boxing out and measuring. While the grate can be trimmed on site and the grate edge-rail closest to the building can be moved, the edge-rail. 200MM Opening Polymer Concrete Channel. Available as 80mm or 100mm tile floor wastes. 1. Allproof Industries N. Begin at the intersection of your channel drain sections and the drainage run or soakaway. Manufactured using 100% recycled plastic and has excellent chemical and corrosion resistance. 57. PCRISER66. Tropical Cyclone Gabrielle recorded 300-400mm of rainfall and Auckland received over 45% of its annual rainfall in just the month of January. The Perimeter Drain system creates a 200mm wide x 180mm high channel during the external concrete pour as per E2's requirements. This product works much like a point drain, but can be set up as a threshold channel or flush against a wall. Allproof confirms that this minimum level of assurance has been met or exceeded by the following:. Round cast iron grate. View Full Catalogue. Shower channel drain and grate – Vision Horizon Allproof Industries. 2023 has started with two major weather events in the first two months. Allproof also offer a wide range of other fully custom manufactured systems to accommodate for a variety of other design variables, for more detailed information on designing the correct system and application for level threshold please see our article on How to Design E2 Compliant Level Access Building Entrances. pdf Drawing: CAD DrawingThe exposed stainless tray provides an easy maintenance and highly durable shower base. Drain Cleaners Thread Tape and Accessories Trowels, Spreaders and Masonry Trowels & Masonry Tools. This product utilises a 123mm wide grate, this is standard. The Cantilever Bracket design offers a permanent mounting option by bolting the bracket onto the slab prior to installing the finishing surface. The Kaiteri Series is a stainless steel bathroom drain designed to be compatible with Allproof’s range of puddle flanges for tile floor wastes. Product Technical Statement: 108007. See All. An example is Allproof Industries Perimeter Drain, an L shaped channel that can be installed directly against the foundation slab. Product Technical Statement: 108007. Allproof Industries (VIC) 107 East Derrimut Crescent. May 6, 2020 - Discover (and save!) your own Pins on Pinterest. Injection moulded from 100% recycled material, it provides an environmentally conscious and economical drainage system. If you have a pop-up drain stopper, turn it counterclockwise to loosen and remove it. Flat-roof drain – Sureflow Allproof Industries. This makes it an excellent choice for commercial projects; the polymer concrete channel provides a strong structure for the trench. By simply butting the L shaped channel up against the exterior footing of the building it creates a surface to pour the concrete up against. e. Allproof Industries N. Injection moulded from 100% recycled material, it provides an environmentally conscious and economical drainage system. Allproof Perimeter Drain provides level threshold entry to the campus for high levels of foot traffic with the wedge wire grates rated for R11 slip resistance. Invisidrain. Channel strip drains and sumps for residential and commercial use including polymer concrete channels, plastic channels, strip drains and slot drains. Allproof Industries. Available as a slot drain, with a removable 7 or 9 bar grate or with a tile insert tray. Specific threshold drain to comply with E2 New Zealand Building Code. PCSUMP100. She has been a regular contributor to the Houses and Artichoke newsletters. Allproof provides a dedicated nationwide specification support team to develop the perfect solution for your project from. 00. Allproof level threshold products have been used in educational facilities all around. Designed and made to all AS/NZ standards and NZBC clause E1. 7. The floor waste shall comply with NZBC Clause G13 however a graded floor is not essential in this situation. It measures 125mm x 1 m. 6) needing to be sufficiently recessed into the wall and floor, allowing waterproof membranes to be dressed onto the flange surface areas (textured to maximize bonding). Allproof's Vision series of stainless steel channel drains has a centre outlet and a choice of five grate designs, including Sunrise. The Allproof Industries Perimeter Drain is an ‘off the shelf’ level threshold product that removes the process of boxing out and measuring. Roof drainage. 00. An example is Allproof Industries Perimeter Drain, an L shaped channel that can be installed directly against the foundation slab. Polymer concrete pit/sump – PC Allproof. Small Diameter Bronze Roof Drain. . The Cantilever Bracket system is a design that can be used when a permanent level threshold mounting option is desired. Another factor to consider is whether a single, double or triple threshold tray is needed. Z LTD. . $131. ACO BuildLine is a range of drainage products designed to protect the building from stormwater at or around the building line from the ground level up to the roofline. This is an important factor when considering the intended use of an. Suitable for concrete finish. These systems include internal floor drains with a puddle flange and gully traps such as linear shower channels for bathroom drainage, stainless steel shower trays, vinyl floor clamping drains, stormwater trench drains, roof and balcony drains, commercial kitchens and point drains as well as a wide variety of PVC. The design consists of a wide stainless edge and a stainless plate acting as the grate. 75L. The channel creates a 180mm x 200mm channel along the building line, the extra 30mm depth provided in the channel allows for a 1:200 screeded fall along the channel towards the outlet. #channeldrain #stripdrain #slotdrain #trenchdrain #nzmade #madeinnz #madeinnewzealand…Up to 500 Free Spins on Starburst Allproof Shower Slot Drain Bonus Percent. Allproof Industries (Main Office) 17 Bay Park Place, Beach Haven, Auckland 0626, New Zealand. #architecture #levelthreshold #drainage #architecturenz #nzarchitecture. The Allproof Industries Perimeter Drain is an ‘off the shelf’ level threshold product that removes the process of boxing out and measuring. E2/AS1 7. Channels and gullies with 'Hygiene First' features. Shower screen support and drain – 120SCS Stormtech. ACO ThresholdDrain Cantilever is an innovative design that achieves full compliance with the NZBC Building Code E2/AS1, while minimising visual impact. Ring & dome UV resistant ASA. Slot Series. com #buildingsupplies #archtecture #commercialdesign #plumbing #plumbingsupplies #drainage #roof #rooftop #brass. Today. A rubber spacer is used to maintain the required 12mm distance from the joinery. ”. 100DRCR OFLOW 90. Level Threshold Solutions (5) Refine. The Allproof Industries Perimeter Drain is an ‘off the shelf’ level threshold product that removes the process of boxing out and measuring. The Vision series is available in four stock lengths: 800, 900, 1000 and 1200mm. The channel drain has a clear opening of 300mm and internal depth of 300mm providing high capacity drainage for large surface areas. 66mm wide x 120mm Deep From £240. [0007] An existing AllProof threshold drain system includes a pre-formed L-shaped concrete channel and thus boxing/formwork is not required for the concrete pour. A fully E2 Compliant channel drain. Allproof’s perimeter drain would be. 2. Compatible with TPO, Torch-On and Rubber membranes. Allproof Polymer concrete channels with heelproof cast iron grates delivers excellent drainage. Pinterest. The Slot Drain is primarily designed for storm-water run-off, but it is also suitable for surface water. Grates have been. Stormtech created a world first by developing the linear grate and drain system for bathrooms. The channel creates a 180mm x 200mm channel along the building line, the. . 98L. You must be logged in to post a review. This product works much like a point drain, but can be set up as a threshold channel or flush against a wall. Product Technical Statement: 108007. Allproof Industries' Perimeter Drain is a level threshold channel drain system that allows for fast, efficient and cost effective installation. ACO offers a range of products for stormwater and waste water drainage. Allproof pits can be stand-alone or connected to a channel drain system. Founded in 1946, the ACO Group manufactures products for the building and construction industry. Allproof’s Bolted Bracket Threaded Leg is the next evolution in Level Threshold solutions. Before Slot Drain, grating, trench drains and four-sloped floors were the standards. Allproof have designed, manufacture and supply multiple systems that address the key features set out in E2/AS1. Z899-THR Threshold Drain. Ideal for commercial situations, podium areas, carparks, malls, decks, and balconies. Designed for Australian bathrooms and standards it is a high performing, durable system. The Laundry Outlet Box has allocation for both top fed and bottom. The document states “three-sided pre-formed channel systems are prohibited,” meaning Allproof’s Perimeter Drain is the solution. 100mm pipe outlet pre-marked on 350 x 350 pits. Harbour Hospice has utilised Perimeter Drain for slip-resistant level threshold and vinyl floor wastes for hygienic and accessible wet rooms as well as in the kitchen facility. 2. Allproof Perimeter Drain - Level Threshold. It utilises high quality material. The Allproof Industries. NZ-MADE STAINLESS STEEL SHOWER TRAYS AND BATHROOM NICHES. Description. . Roof drains provide entry to tracking for the removal of water off roof tops. Stainless steel or bronze cast metal drains in a square or round design. 2 lays out a comprehensive solution for level access between a reinforced concrete floor slab and an adjacent exterior patio or paved surface. Allproof’s SL Series is a stainless steel slot drain designed for commercial applications. . Cast bronze flange with an o-ring seal and clamp ring, suitable for residential and commercial roofs. Add to cart. With a national support network, the offering of onsite customisable systems and custom fabrication level threshold doesn’t need to be challenging. Get in touch with Allproof Industries about Linear commercial drain – Vinyl Clamping Channel. E2 Compliant channel system for onsite customisation. DCSUMP. [email protected] Square/100mm Outlet Polished Stainless Hinged Storm Drain with Double Strainer. The release of the latest assessment report from The Intergovernmental Panel on Climate Change (IPCC. See more ideas about drainage, fire protection, drainage solutions. By simply butting the L shaped channel up against the exterior footing of the building it creates a. Marley 110mm x 100m Drainflo Corrugated Drainage Pipe Smooth Heavy Duty Unpunched (0) $3699. Simply butting the L-shaped channel. Allproof confirms that this minimum level of assurance has been met or exceeded by the following:. The Threaded Leg system features adjustable rods with plastic feet that allow the installer to match any undulations in the formed channel with ease. Compatible with torch-on membranes. Tropical Cyclone Gabrielle recorded 300-400mm of rainfall and Auckland received over 45% of its annual rainfall in just the month of January. CAD Drawing. · Level Threshold - Most widely understood as the term describing an entrance to a building where the external surface level remains; of 16 /16. Allproof Domestic Channel (DC) is a residential strip drain for use in front of garages, in driveways and around perimeters of residential properties. 4L. 50 x 40mm Scupper Drain. The Kaiteri floor drain uses an ABS black plastic moulded base with a 304 stainless steel plate as a lid / grate. The frame cleverly makes the. It can be installed against a wall or in the centre of the floor or shower entrance, creating a threshold. Allproof is an NZ owned and operated manufacturer specialising in drainage and plumbing systems. This fixing system also means a spacer is not required to maintain the 12mm distance and the bracket and joinery. Available in stock or custom lengths and…Surface water drains made from cast 316 stainless steel or bronze. The specially designed grate for this system is made from Glass. Eight grate designs provide a wide. The channel creates a 180mm x 200mm channel along the building line, the extra 30mm depth provided in the channel allows for a 1:200 screeded fall along the channel towards the outlet. Masterspec gives solutions for commercial, industrial, residential, engineering, interiors and landscape projects. 00. The small-diameter bronze roof drain comes with a variety of grate options including dome, overflow and. Reln Stretch Drain 8m Solid (4) $81. Tile Floor - Invisi Floor Drain. Send to friend: General;. . Durable high-quality channel drain with high chemical resistance and low permeability. The Perimeter Drain system. Allproof Industries. This creates a highly durable drain with extremely low permeability making it the perfect solution for commercial applications. 80mm Sureflow Roof Drain. Allproof Polymer Concrete 225mm Channel Cast Iron / Stainless Steel 200mm Clear Opening Inline Sump Cast Iron / Stainless Steel End Cap PC Channel & Grate (200mm Clear Opening) 1000 200 200 248 240 225 225 225 Cast Iron Edge SS Edge 200 Code Description PC200 225EC SS 200 225mm PC End Cap Visit allproof. Allproof’s 75mm deep Polymer Concrete channel was selected for its low profile and high capacity of stormwater drainage. Allproof's exposed SS tray is an ideal solution for the project due to its floor waste gully system. Allproof Vision shower channels have an excellent service history being selected for high-end residential projects, 5* hotels and premium apartment complexes. The Vision channel is available with a choice of five grate designs off the shelf in 800, 900, 1000 or 1200mm lengths. Solvent cement straight onto pipe. The Cast-In Cantilever Bracket system is a design that can be used when a permanent mounting option is desired. . 88) would integrate a 65mm balcony drain (VRTW65) into the downpipe. A rigorous design process coupled with in-house and independent testing. In fact, Allproof began its evolution as a manufacturer of drainage products when it started supplying waterproofing products in the 1980s. The Vision channel can also be customised. ACO Self. The Allproof Industries Perimeter Drain is an ‘off the shelf’ level threshold product that removes the process of boxing out and measuring. It includes a drained channel – maximum length of 3,700 mm – across the door opening, with a minimum width of 200 mm and minimum depth of 150 mm with 1:200 minimum fall discharging to the. Description. the level threshold drains and other channel drains needed to be. Providing level threshold access to buildings is essential when catering to disabled and elderly occupants. E2/AS1 7. The release of the latest assessment report from The Intergovernmental Panel on Climate Change (IPCC. they can be installed against a wall or used as a threshold drain preventing the flow of surface water from escaping the shower area. Shanley Heffernan. This. The perfect addition to any tiled bathroom or shower to maximise space and functionality. Allproof Industries Allproof Industries is a New Zealand family owned manufacturing, marketing and distribution company specialising in Plumbing, Drainage Systems and Fire Protection Products. A metre length requires 42 individual grates. Allproof confirms that this minimum level of assurance has been met or exceeded by the following:. Available as both a roof drain and overflow. Level threshold channel drain – Cantilever Bracket Allproof Industries. Stainless Modular Strip Drain System The MC Series is a modular channel drain with sump available in standard sizes creating a system that’s easy to assemble to the needs of specific projects. The Vision series is an all stainless steel shower channel and grate system with a centre outlet, available off the shelf from Allproof. #allproof #. Designed to be installed in tiled floors and showers, the grate is compatible with Allproof puddle flanges and gully traps. The Invisidrain eliminates the need for a grate in the bathroom floor or the shower. The channel is available as 100mm or 150mm internal depth and in 1m lengths with stainless steel edge rails providing a clean. Description The Allproof Industries Perimeter Drain is an "off the shelf" level threshold product that removes the process of boxing out and measuring. system utilises standard off the shelf width grates making it possible to keep unity and consistency between differing drainage systems within one project…The Tile Over Stainless Steel shower tray provides the ultimate waterproofing system for tiled showers and bathrooms. Whether you're a DIY enthusiast or a professional contractor, t. A floor waste would need to be situated within this area to enable the drainage of surface water should an accidental overflow occur. Base manufactured from PVC. The channel is fabricated from 304 stainless steel and the grate from 316. Large Diameter Roof Drains. Allproof Industries have used polymers to supplement cement as the binder material, resulting in a strip or slot drain that will last for years. The design has been developed to utilise the strength of the surrounding concrete to create a strong durable solution for. Level Threshold - Perimeter Drain. Selecting Local for Low Carbon Design. *Tile not included. The Slimline system offers the flexibility to choose the desired drainage channel lengths, widths and angles you need to achieve the finish you are looking for. Allproof Bolted Bracket Level Threshold. May 5, 2020 - #Allproof Perimeter Drain is an off the shelf level threshold solution that's fully E2 compliant and creates a pre-formed channel reducing installation time and difficulties faced on site. The NCC 2022 draft has identified that for new buildings to achieve a Silver Level. Construction anchors will be fitted to be set into the concrete pour and left protruding into the formed channel when boxing is removed. Pre-cut holes for storm water connection when seal included. Designed to be robust and durable, it's the ideal drainage solution for commercial kitchens, food prep areas and factories. 20. We have placed ourselves at the forefront of design, quality and service for the construction industry with high levels of communication with other leaders in the industry. Allproof. The grate has an open area of approximately 60%. Allproof's Vision is a high-grade stainless steel channel drain for bathrooms and showers, while the Vapour is a grate that provides a drainage path through the perforations and offers a traditional design. Allproof Level threshold solutions are designed to allow level entry to the building and be fully compliant with New Zealand standards set out in Building Code E2, External Moisture. Allproof Industries N. LEVEL THRESHOLD Solutions for Doorways and Entrances Modern systems for modern buildings. Shower channel drain – Vision Equator Allproof Industries. 1 standards at independent IANZ accredited fire testing laboratories. Level of assurance needed to demonstrate NZ Building Code ComplianceThe Domestic Channel by Allproof is a strip drain system made for residential use. Plastic pits are NZ-made using 100% recycled materials from local sources. Domestic Channel & Grate 75mm x 1m. The PC polymer concrete 100 mm drainage channel from Allproof is a durable strip drain that has extremely low permeability and high chemical resistance. Humes Channel MeaDrain 150 Technical Sheet . Allproof’s roof drains have been hydraulically tested using an independent NATA accredited laboratory to maintain integrity in published testing data. $ 235. Includes 100mm O-ring outlet to suit i. ACO Drain systems consist of factory manufactured modular channel units made from corrosion resistant Polycrete channels, together with grates from a variety of materials for all loading applications. EasyChannel Tiled Channel and Drain System. Allproof Industries N. 6. The Allproof Commercial Channel is a New Zealand made linear channel drain with a 200mm clear opening. A rubber spacer is used to maintain the required 12mm distance from the joinery. A fully E2 Compliant channel drain. Description. The Invisi's modern design uses a stainless… Allproof Industries on LinkedIn: #allproof #drainage #showerdrain #showerdesign #tiledshower…Allproof. Available in matte black, tiger bronze gold, polished chrome and champagne rose. Injection moulded from 100% recycled material it provides a environmentally conscious and economic drainage system. Bases come in standard PVC (for adhesive-based membrane installs), thick gauge PVC and bronze (for heat-applied membrane installs). Waterproofing Systems offers the newest technology when dealing with membrane to flange adhesion and all consist of a special compound thermoplastic rubber meaning they are highly resistant against low temperatures. Allproof Exposed Stainless Steel Shower Tray. 611 followers. Fabricated from 304 stainless steel (available in 316 grade SS on request) this high grade strip drain is tailored to each project providing the ultimate drainage solution. 2. Sep 10, 2021 - Explore Allproof Industries's board "Allproof Products" on Pinterest. The fall (slope) in the floor only needs to be set in one. Allproof Industries. Explore. The downpipe penetration through the balcony would be sealed using an Allproof Balcony Downpipe Flange (BDF100). Especially suitable for roofs and decks. 65. The Allproof Industries Perimeter Drain is an ‘off the shelf’ level threshold product that removes the process of boxing out and measuring. This mitigates the risk of surface water entering the dwelling and creates an indoor-outdoor. Allproof level threshold systems are designed and made in New Zealand. From $1,062. GST. E2 Compliant channel system for onsite customisation. Search Result for Surface water above ground » Allproof Perimeter Drain - Level Threshold. Allproof Industries’ Perimeter Drain was selected as the ideal solution. The galvanised steel grate as been tested to Australian standards AS3996 for load classes achieving a heavy duty class D. Matching term "allproof threshold" Allproof Bolted Bracket Level Threshold. Since opening its doors Commercial Bay has been a key topic of interest in the A&D community earning it a position among the finalists for one of the indust Suitable for concrete finish. The adjustable bracket system with legs supported on the. The Allproof Invisidrain makes an excellent solution for shower designs with a focus on making a feature of tiles. The ideal choice for modern tile floor wastes in bathrooms and restrooms. Immediately upon entry, the views through a central courtyard and the main house are captivating. 8vhlq6huylfh+lvwru 7khsurgxfwkdvehhqxvhglqdzlghduud i1hz=hdodqgfrqvwuxfwlrqv lqvwdoodwlrqvlqfoxgh uhvlghqwldodqgfrpphufldodssolfdwlrqv. Perimeter Drain is a two sided channel with a bracket system supporting a grate allowing for the 12mm drip line. 22. Touch device users, explore by touch or with. All pits are designed to exceed New Zealand building standards and regulations. We have learnt that a securely mounted frame greatly increases strength in areas of use, especially in high-traffic areas, and the support legs provide reinforcement as the grates become wider. The FWG provides a tested floor penetration for passive fire protection which is a key feature. The Invisidrain eliminates the need for a grate in the bathroom floor or the shower. This high-quality trench drain offers. Shop linear shower channel drains, grates, pop up bath & basin wastes & more online, or at your local Plumbing Plus. Exposed stainless steel shower trays are available in two stock sizes or custom. The system features a closed sleeve for straight through levels and an open sleeve for levels where the surface drainage needs to be allowed to feed into the down pipe. The black plastic moulded base creates a discreet line while the grate hides. The Vision Series can also be used as a threshold drain separating the shower from the rest of the bathroom, minimising any surface water escaping the walk-in. The Storm Series also works well in interior applications such as. This product utilises a 123mm wide grate, this is standard. Made from quality, durable materials,. The overall size provides a high level of. New Zealand Building code E2/AS1 stipulates the requirements of drainage around level threshold situations and must be adhered to. Allproof Level threshold solutions are designed to allow level entry to the building and be fully compliant with New Zealand standards set out in Building Code E2, External. At the main entrance to the dwelling, a level threshold may be desired where the internal surface and external surface are not subjected to a level change. 304 grade stainless steel. Made from 100% recycled plastic. Allproof Industries PC Range utilises polymers to supplement cement as the binder material, this creates a durable product that is highly resistant to a wide variety of chemicals and has extremely low permeability, making it excellent for commercial linear drainage installation. 14. New squat, compact base flange. ACO Gully. Domestic Channel Inline Sump & Grate. Since opening its doors Commercial Bay has been a key topic of interest in the A&D community earning it a position among the finalists for one of the industBig Rain, Big Drain. Exterior Drainage - Polymer Concrete (PC) Channel Systems. Ideal for stormwater drainage in external applications such as laneways, urban and pedestrianised areas, around commercial or residential buildings or any space that requires a surface water drain such as outdoor showers.