ACO FreeDeck - Linear Deck Drainage Systems ACO FreeDeck system Features and benefits 1 Five channel systems in galvanised steel or stainless grade 304 for warm and inverted roofs are available as a Fixed Height system with a choice of inverts to suit hydraulic demand, or Adjustable Height system allowing precise match to finished floor. Certified according to EN 1253-1. 6. Our mission: to. 1. Foul air trap + silt basket (for outlet 110 mm) Suitable for. Generally a new driveway or patio area does not require building regulations approval. 014 litres/second/m² for normal situations. The company has further locations in Phoenix, AZ, and. 1946: The year ACO was begun as a small workshop by a young German inventor. The Building Regulations 2010. ACO Drain systems consist of factory manufactured, modular channel units made from either corrosion-resistant, polymer concrete or fiberglass, together with grates from a variety ofACO Drain ACO Sport ACO Infrastructure ACO Stormbrixx ACO Environment ACO Aquaduct ACO Wildlife ACO Utility Duct ACO Self. Typical applications 4 Threshold DrainageACO bears no responsibility for stains on paving when using CorTen gratings. Sentence 4. Item no. Sagging-proof. ACO drainage systems are used in a variety of applications from domestic environments to airports. ACO commercial drainage. Linear channel at block paved driveway threshold. ACO ShowerDrain Technical NEW:ACO ShowerDrain Technical 05/12/2012 15:35 Page 6 ACO ShowerDrain and Wetroom Systems Shower channel system for tiled flooring Features and benefits 1 Five lengths, 700-1200mm gratings designed to fit most applications. The connection height of 15 cm for structural waterproofing, which is specified by DIN 18531 and the Flat Roof Directive, can be reduced to 5 cm by utilising ACO Profiline X in the door area. ACO StormBrixx. Linear channel at doorway threshold. Price A Job is a leading USA, Canada or UK based construction cost estimating software company specialising in products meant for domestic construction works, plumbing and electrical works. Threshold drainage usually involves a linear channel drain , with slot. With design support and Civil 3D BIM files as well as SuDS solutions, ACO assists the infrastructure industry in making, mapping and. 63 19012 NEW! ACO StepDrain comes complete with a corrosion resistant 304 stainless steel Heelguard grating suitable for pedestrian traffic. We engineer high performance drainage channels, gullies and systems for a wide range of commercial, industrial and residential applications. Soakaways are a key method of returning collected surface water, or cleaned grey water, to the land. ACO drainage channels, also known as linear drains, are well-suited for a number of domestic applications and serve to remove surface water and prevent overspills and flooding. ACO ShowerDrain S+. In its Building Services Division, ACO combines drainage elements to create sustainable solutions for private homes and office buildings, as well as for. Dimensions. 01 175 203 18. Contact Information Phone: 1 (800) 543-4764. Building Drainage. You must submit the following forms and documents for building plan approval and permit for start structural works. Ultimate range of stainless steel drainage for industrial and commercial applications. Double lip seal push-fit connection for easy and reliable installation. £55. Each of these has above-ground. ACO provides a wide range of product offerings designed for use in level entry thresholds and façade drainage, where compliance with NZBC Building Code E2/AS1 is required. construction details. 63 19005 Threshold Drain - black aluminium grating 1000 61 100 93 1. 014 = 1. Amendment of the Flat Roof Directive. ACO Gravity drainage. minimum sub-base thickness. Pipe systems. V-shaped bottom for better water flow even at low flow rates and for better self-cleaning performance. Reviews. Outlet diameters 110, 125 and 142 mm. If it doesn’t, then you will need to get planning permission. There are tried and tested solutions for this, but they do not. Jebel Ali Free Zone Dubai, Street 100, Building 07 P. ACO, Inc. within the ACO Group. The range is compatible with ACO’s stainless steel trench drains, troughs and floor drains. ACO DrainMat comes in two types of bases; polymer or polypropylene. Beechcraft St. Created Date:ACO Profiline X is particularly suitable for loose laying in areas on roof gardens, patios, terraces and balconies. This is the reason why our range offers two different designs: Moreover the planning and design concept. find out more. Products are designed with easy installation, operation and maintenance in mind. The Group has sales in excess of £600 million worldwide with production facilities in the UK, Germany, France, Sw it zer and,D m k p Po C ch R ep ub lic, As tr and h US . The ACO solution separates the competing drainage requirements by engineering an elevated structural attenuation system that operates independently of the flat roof. Failure to confirm these details or to comply with relevant standards/legislation could lead to legal and remedial action at your own cost. Our mission: to ACO Building Drainage is a division of ACO Technologies plc and part of the worldwide ACO Group. Above all they are adaptable to every desired design. ACO. Utilising innovative technology and superior materials, we offer durable and reliable drains for concrete and other pavement types that stand the test of time. Effective waste water management systems are a key part of any commercial building’s infrastructure and ensure that a facility is an easy-to-clean, productive and ultimately a healthy working environment which benefits customers, building operators, employees and nature. Semi-standard and customised products. 0 Façade drainage ACO Profiline Free Additional components. For the requirements of this section, removal of a water closet shall not be required to. The threshold is only 60mm wide and sits flush to the door for maximum discretion,. Above all they are adaptable to every desired design. This can be very restricting in the design of the kitchen or bathroom so this is the first thing that should be taken into account when thinking about the design. Building Drainage. 2. Applications are becoming more sophisticated and the increasing pressure of regulations and standards make achieving design, performance and financial goals ever tougher. Snow drifts in front of doors thaw. Suitable for both syphonic, vacuum and gravity drainage solutions. Had loads of rain as is seasonal, ground under channel drain gets saturated, Aco fills up and water overflows onto driveway, happens a few times. Features & Benefits. V-profile bottom for enhanced flow efficiency at low flow rates and for improved self-cleaning performance. installation should comply with the design and manufacturer’s recommendations. It collects water from the surface of a pavement and directs it into an underground drain that, in turn, directs it elsewhere, to the main Surface Water sewer, a nearby ditch or watercourse, a soakaway or other suitable SUDS system. 4301 (304) or 1. 3 Friction lock ensures safe grating retention, yet is. ACO Drainage Channels. AS350 channel for Bi-fold doors. the last note with the following. A strong brand around the world. Building drainage Surface water management Building materials building drainage surface water management building materials building drainage surface water management buildingConnecting your home to the right drains. ACO ShowerDrain solutions are designed to inspire creative bathroom planning. Assessment services. Order information. At the time, guy in charge confirmed that the channel drain would also be fed to soakaway - this never happened though. we care for water. Drainage Design Services. 30 mins to drain. To ensure a building and its elements have the appropriate barrier protection, an assessment of the hydraulic performance of both the channel and grate is essential. Edge infill. Al Semsam Building Materials, a leader in the supply of various internal and external drainage systems, continues to help tackle some of the challenges presented by the complex site and structural. Waste management products. 88 8. Private parking areas. The sport drainage system allows events to continue even during inclement weather providing a safe arena for athletes and spectators. A range of standard and custom industrial and commercial stainless steel linear drainage systems, which are available with a wide range of grates or with a continuous inlet. Suitable for both syphonic, vacuum and gravity drainage solutions. ACO. Suited to an assortment of domestic applications, the recycled polypropylene structure is ideal for pedestrian and light vehicular traffic up to Load Class A15. Driveway legislation is there to reduce the impact of flooding. Contact us today! (520) 421-9988. ACO Building Drainage ACO Building Drainage Our built environment is becoming ever more complex. Semi-standard and customised products. ACO By The Numbers. You will also find. In addition, we also service attractive niche markets such as track and field construction, agricultural construction, iron casting, special stainless steel. The junction of the building drain and the building sewer shall be served by a cleanout that is located at the junction or within 10 feet (3048 mm) developed length of piping upstream of the junction. An advanced roof and balcony rainwater drainage system. Wherever roofs are drained, pipe systems made of highly stable materials are used. Service & Support. ACO Biological Grease Traps - ACO Building Drainage. 63kg per unit. ACO is committed to designing and producing the best solutions to water management. Driveway legislation is there to reduce the impact of flooding. Load Class B (80kN), suitable for footpaths, car parks and residential properties. The system intercepts water from surface run-off. Offering a wide range of bricks, plasterboard, concrete, building blocks, roofing, sealants, adhesives and more with free local delivery. Clear a trench to suite the channel and lay 50mm (min) bed of concrete. Climate change brings us face to face with challenges to respond to new environmental influences by developing innovative solutions. 1,5 mm. ACO Drain consists of cast polymer concrete bodies with either galvanized steel, stainless steel or cast iron wearing edges. ACO offers a full product line solution for track and field, as well as the surrounding public. 3) also spe-cifies in the same way as the Roof gree-ning regulations that drains must be pro-tected from the encroachment of plants. that are at least 150 mm wide should be used”. The role of the driveway has changed significantly over the last 12 months. Hexaline 100. drainage, utility enclosure, building drainage and residential products. The ACO ShowerDrain satisfies the latest fire protection regulations for multi-storey buildings in Europe. Connecting aco drains into sewer drain may cause foul drain smell to come though I would not recommend you could use a slim aco 25mm thick this would go behind a gully. Assuming it is a combined SVP, then the building regulations set out maximum distances that a fitting such as a bath, WC, sink and so on can be from that SVP. Drainage Systems Product catalogue and specifiers design guide ACO Building Drainage Watertight Rainwater Outlets for Flat Roofs and Other Areas. This standard specifies definitions, classes, design and testing requirements, marking and quality control for drainage. ACO Drain The world’s most popular modular trench drain system. The most straight forward solution would seem to be to use an existing surface water drain. It is a high quality steel reinforcement for cast concrete applications. nz. ACO industrial building drainage can be easily specified in respect of project requirements. Easy to lift for quick maintenance and cleaning. ACO World-wide. V-shape bottom for width up to 300 mm, reinforced bottom for width above and including 400 mm. Non-combustible. With design support and Civil 3D BIM files as well as SuDS solutions, ACO assists the infrastructure industry in making, mapping and. ACO SPORT ACO Sport is a range of surface drainage and building accessories for track & fi eld, used at Olympic sites since 1972. finally, where a watercourse is not reasonably practical an. 2. Company Number: 02790259 • VAT Registration: 726 4860 18. M of the Building Regulations for England and Wales and Section 4 of the Scottish Building Standards ACO Threshold Drain System Overview Product Code Description Length Width Overall Depth Overall Invert Weight [mm] [mm] [mm] [mm] [kg] ACO Threshold Drain 19000 ACO Threshold Drain - silver aluminium grating 1000 61 100 93 1. ACO’s specialist floor access covers are suitable for use in a. O. Install an external landing with a fall of between 1:40 and 1:60. Throughout the world, the ACO brand is recognized as a leading supplier in the design, development and manufacture of surface water drainage systems. The global market for bi fold doors was estimated to be worth nearly $10bn in 2016 and is expected to reach $14bn in 2023, growing around 5. Slip rated to AS 4586: P4 wet pendulum, C/C 1 wet-barefoot, R11/R11 1 oil-wet inclining platform test. - Professional development training. the Building Regulations for England and Wales and Section 4 of the Scottish Building Standards Product Code Description Length Width Depth Invert Weight [mm] [mm] [mm] [mm] [kg] ACO Threshold Drain 19000 Threshold Drain - silver aluminium grating 1000 61 100 93 1. V-shape bottom for width up to 300 mm, reinforced bottom for width above and including 400 mm. ACO World-wide. Trench Hydraulics. Building Drainage. Both work in the same way — removing excess water. Suitable for use in Building Regulations Part M compliant installations in England and Wales and Building Standards. Service & Support. French Drains – How They Work. All products are chemically pickle passivated for optimum durability and corrosion resistance. Narrow 6mm slot for heel safety. ACO drainage independent of visible edge dimensions; Description. find out more. 8. ACO Drain - Commercial Trench Drains. For the lifetime of the building ACO strongly recommendsProduct information. Изберете от разнообразие от улеи с решетки, слотови или монолитни системи за всяко приложение и всички. Details. This is especially important when used in a position such as this, where it will be repeatedly trafficked by vehicles which can nudge the channel out of line or cause settlement, but even when Aco Drive Drain is laid at the edge of a pavement or tight up against a wall, where it's unlikely to be. 30 minutes divided by 150 milimetres = 12,000 s/m. Separator Technical filter. This also applies to the drainage boxes, channels or drains. (2) applies and permits either a manually operated gate valve or an. ACTIONS. Our products are: Compliant to various Australian water authorities and councils. Linear drainage refers to systems that drain along their entire length, rather than at one particular point, as a gully does. 75 7. 1/8" [3mm] Exposed Asphalt Pavement K1D-A-EAP K100 - KLASSIKDRAIN - LOAD CLASS: A DATE: ACO Polymer Products, Inc. When sizing and installing a siphonic system, there are a series of guidelines to be followed. the building it remains in the drainage channel after the water evaporates. If you decide to proceed with your project, your builder will need to look at Approved Document H for detailed advice on how to comply with. It states: "Construction work which has. 89kg per unit. The Building Regulations dictate an order of priority for the selection of surface water drainage route from buildings as follows: first, an adequate soakaway or some other adequate filtration system. we care for water. ACO Building elements Ltd. No additional software is needed. A are the areas to be drained m². The law on surface water drainage in the UK primarily revolves around the Flood and Water Management Act 2010. ACO is the pioneer and world leader of modular trench drain systems. Title: Product Data - 1Aco - ACO Drain Overview - Modular, Commercial-Grade Trench Drain Systems Author: ACO Polymer Products, Inc. This video will guide you through the typical process for installing ACO HexDrain channel drainage systems, which are perfectly suited for use in domestic ap. With the increase in litigation and compensation for injuries caused by slips, trips and falls, designers must consider specifying grates and floor surfaces that comply with AS 4586 – Slip resistance classifications of new pedestrian surface materials. ACO offers functional solutions that are specially adapted to the flat roof area of use and ensure optimum drainage of rainwater. Clean waste water from oils and other contaminants. EN. ConclusionACO Hexdrain Channel Drain End Caps and Outlet Accessories Pack. The drainage system should be able to drain off large amounts of water quickly to avoid puddles. - via an existing manhole or existing inspection chamber. Nominal pipe size. Any cutting, drilling, or notching shall be completed in compliance with the local Inspector of Buildings or as specified in 780 CMR: State Board of Building Regulations and Standards. It is basically a pit in the ground into which flows rainwater drainage. For more info visit our website: ACO Building Drainage. Technologies plc and part of the worldwide. It's galvanised steel slot top style grating is a discreet option for achieving the perfect finish. Casa Grande, AZ 85122. Page Updated: October 13, 2023. It is basically a pit in the ground into which flows rainwater drainage. Available in 1. These issues are not explicitily mentioned in our installation manuals, because in. minimum sub-base thickness. Suitable for use in Building Regulations Part M compliant installations in England and Wales and Building Standards. Products come in a variety of widths, depths, lengths, and load ratings with grates to. Fully welded hygienic joints. ACO DRAIN® ParkDeck channels. Wide range of gratings for various load classes including slip resistant solutions. Free-standing grease separators are manufactured from stainless steel or polyethylene. 68mm Round (23170) weighs 0. Designed and manufactured to EN 1825: Grease traps. Accessible thresholds should: be in accordance with the design – specific fire, thermal and acoustic precautions may be required. Building regs state that any path, patio, driveway must be 150mm below the dpc, in some circumstances where the lay of the land makes it almost impossible to achieve this, you can install an ACO drain along the wall to catch the water. More information. 6. The Patented ACO Blue/Green Roof system complies with Building Standards and Regulations by ensuring the flat roof can drain quickly in extreme events and slowly in normal use. Issues to be taken into account include: outlets. the sequence of installation should ensure that boards are waterproofed, and the roof sealed at the end of each day, or before the arrival of inclement weather. ACO ShowerDrain S+. . Send to the Building Control in a click. ACO By The Numbers. The aco drain should feed a plastic 100 ml pipe then that pipe should in turn feed into into a permeable aqua cell unit in customers grass area at about a metre depth and aqua cell unit should be covered in a membrane and then backfilled with gravel coveing all the aqua cell at all sides and on top gravel. Use the Travis. 4301 (304) or 1. For the purposes of this chapter, the following definitions apply: Provision to access a sewer or drain for maintenance or inspection and includes any manhole, inspection chamber or rodding eye. emission factors used to calculate the . ACO Building Drainage is a new concept within the ACO Group. £65. Car Park gullies are ideal for multi-storey car parks, shallow parking deck or podium deck applications. 6 Drives, paths and landscaping. We develop, produce and market water management technologies used in civil engineering, building drainage, gardening and landscaping, and sports arenas. Our humble beginnings pioneered the concept of modular trench drains in North America. The standard assembly of ACO DrainMat. AND SAFETY REGULATIONS. At ACO, we offer a wide variety of digital solutions to assist you with your building drainage and surface water management challenges. The dimensions of ACO box and slot channels for concrete, tiles and resin floor can be tailored in cooperation with our technical support team, or using any of the available drainage customization tools. 73 MB) Technical Guidance Document H – Drainage and Waste Water Disposal (2016) amends the current 2010 edition of TGD H in order to call up requirements under S. The whole world builds with ACO. house. The system is available in two sizes (940mm and 1088mm) making it ideal for almost any door size. Install an external landing with a fall ratio of between 1:40 and 1:60. Box 18672, Dubai, United Arab Emirates Telephone: +971 4 880 69 98, Fax: +971 4 880 69 97please visit the ACO building drainage online catalogue for more information DN 315 DN 250 DN 200 DN 160 DN 125 DN 110 DN 75 DN 50 DN 40 Introduction to ACO pipe Together with the other products of ACO building drainage it creates a perfect system and offers a sustainable drainage solution with unique advantages to the customers. certificated drainage that fulfill all necessary norms and regulations full customer care and local support from design consulting to onsite installation support With many years of experience and drainage system assessments, our team is committed to ensuring all aspects of proper drainage systems are designed, manufactured and catered to. Here’s how to get the external landing and drainage right. Free-standing grease separators are manufactured from stainless steel or polyethylene. ACO Building Drainage ACO Business Centre Caxton Road Bedford Bedfordshire MK41 0LF *Available in 2015 Tel: +44(0)1462 810400 Fax: +44(0)1462 851490 Email: [email protected] products and dimensioning tools. Drainage for Pavements. DR803 ACO Drain Price List 4 of 5 (Fabrications) 2022. ACO Technologies plc and its subsidiary undertakings (hereinafter collectively referred to as “ACO”) is a wholly-owned subsidiary of ACO Severin Ahlmann Holdings GmbH incorporated in Germany. Linear drainage refers to systems that drain along their entire length, rather than at one particular point, as a gully does. Choose a level area to install the drain. Building on our global drainage expertise that protects people from water, we. The ACO Drain product line is segmented into different product types – dependent on use. It may be a gully , a hopper , or it might be a straightforward connection where a downspout from a roof is directly connected to the pipework. Jebel Ali Free Zone Dubai, Street 100, Building 07 P. ACO Building elements Ltd. ACO Threshold Drain comes complete with either a silver or black aluminium, CorTen steel or stainless steel Heelguard grating suitable for pedestrian traffic. 1 ACO JUNIOR cellar drain with backflow safety device Products Standards/regulations EN 13564-1 — Backflow stops for buildings (requirements) EN 13564-2 — Backflow stops for buildings (test processes) Suggested. A channel drain irradicates pools of water to prevent damage. Features & Benefits: ACO Hexdrain Downpipe to Channel Drain Connector 68mm - Black. R. Threshold Drain is compliant with Building Regulations Part M and Section 4 (Scotland). ACO commercial drainage. The philosophy which guides us internally and protects our customers. Below ground gravity grease traps. The seals, joints and thickness of the materials are guarantees for low noise emissions. ACO Drain systems are available in 50mm, 100mm, 200mm and 300mm internal widths, and are available with a built-in slope for up to 40 metres. includes: Definitions. Some channel system are currently being. ACO’s specialist floor access covers are suitable for use in a. Building Regulations. the Building Regulations for England and Wales and Section 4 of the Scottish Building Standards Product Code Description Length Width Depth Invert Weight [mm] [mm] [mm] [mm] [kg] ACO Threshold Drain 19000 Threshold Drain - silver aluminium grating 1000 61 100 93 1. Calculate average time in seconds. Product benefits. ae, Web: ACO Systems FZE - Legal informationDuring the development of these standards, the Approved Documents to the Building Regulations were also developed. Beechcraft St Casa Grande, AZ 85122 Tel: 520-421-9988 Fax: 520-421-9899drainage channels always need a foundation (Type M) like shown in our ACO DRAIN ® installation advice. RainDrain Brickslot B 125 drainage channel. Certified fire protective solution available for classes EI 90 – EI 180 (EN 13 501-2) Silt basket available as accessory. The width of your trench should also be wide enough to fit your French drain in, as well as at least 25mm either side. 2. More than 60 years of drainage experience makes ACO the world-class supplier of drainage systems. Where slot drainage is preferred ACO Brickslot tops are available for the 100mm and 150mm wide channels, providing discreet slot drainage in either block paving or natural stone surfaces. ACO Building Drainage. The Building Services products collect the water from flat roofs, paved areas and bathrooms, and clean it as required depending on the level of water contamination. AQUADUCTThis reliable and robust concrete fabric mesh by ROM is ideal for security on building projects. From 1 October 2008, the government will introduce changes to the General Permitted Development Order, making the hard surfacing of more than 5 square metres of domestic front gardens. Product information. Each solution is backed by years of design experience and. With the increasing usage of SuDS for drainage, the role of soakaways has never been more important, so their construction and they way in which they work needs to be better understood, which is the aim of this page. Our resolution to better our planet extends throughout the company with our employees. These specialty products intercept and collect surface water typically at. 4404 (316L) grades of stainless steel; Adjustable EasyFix leveling feet;Price Lists. Distribution companies wold-wide. The DrainMat system is compliant with Part M of Building Regulations for England and Wales and also section 4 of the Scottish Building Standards. The ACO Self range includes: DriveDrain ®. Aco Drive Drain - Case Study III; Aco Drive Drain - Case Study III; Aco Drive Drain - Case Study III; Drainage - A Guide to Installation;. ACO Food ACO Gully ACO Pipe ACO Buildline. Underground storm water storage systems. Hygienic design following EN 1672, EN ISO 14159 and EHEDG document 8, 13 and 44. Private parking areas. Tyttenhanger Farm, Coursers Road, Colney Heath, Herts, AL4 0PG. They have the extra safety of D 400 load class capabilities to cope with most private parking traffic requirements. A must-have for contemporary bathrooms and wet room designs, ACO stainless steel shower channel drains can be used with tiled or flexible sheet flooring. house paths and patios. ACO. Other ACO systems ACO DRAIN ACO Drain is the world’s leading modular trench drain system for commercial, industrial and landscape applications. ACO stands for professional drainage, efficient cleaning, and the controlled discharge or reuse of water. Rules for drainage mainly ensure there is no risk for cross contamination and to ensure the systems can cope with the wastage and volumes of water they will be holding. ACO Drain is available in 2″, 4”, 8” and 12” internal widths, and are available with up to 130 ft (40m) of built-in continuous slope. Heelsafe® Anti-Slip Grates. The hygienic ACO drainage systems comply with strict hygiene regulations (FHD / Fully Hygienic Designed) to. r is the rainfall intensity in litres/second. London. Multi-storeys and underground parking facilities also need to take into consideration the protection of the building’s fabrication. The ACO Group is one of the world market leaders in drainage technology. There are 4 ways to connect new drainage to an existing system:-. Order information. Building Drainage. ACO Building Drainage specialise in the development of corrosion resistant drainage systems and building products for applications across the internal and external built environments. This means that you cannot add steps to the main access to a property. The ACO DRAIN® Multiline drainage channel collects the water and feeds it to the rainwater treatment system, then finally into theDrainage Regulations. ACO as a leader in development and manufacturing of stainless steel drainage, in cooperation with building companies, has developed a comprehensive installation. to meet the Environmental Protection Agency regulations to avoid any contaminated liquid being discharged into the sea. ACO building drainage ACO Building Drainage is a division of ACO Our built environment is becoming ever more Our global resources and fabrication capacity complex. ACO crafts the future with cutting-edge technology, sustainable water management practices, and. We tackle all the building drainage biggest concerns. 1. Try asking the company that installed it if they would. Adjustable EasyFix leveling feet. Lockdown has seen an increase in delivery services. find out more. Kitchen Waste pick-up. Section H2 in Part H of the Building Regulations covers drainage fields and drainage mounds, in both design and construction, to give secondary treatment for properties with septic tanks or package treatment plants. Created Date: 3/19/2021 4:38:43 PM. ACO is the market leader in drainage systems, offering an impressive range of industry accredited drains and supplies. com Corporate Office: 825 West Beechcraft St. It states:. Search. Челопешко шосе 36, София. regulations and standards make achieving design, development of corrosion. ACO MultiDrain Monoblock PD100D is a. Dimensions. Flat roof gullies for gravity drainage are used for draining small flat roofs with a surface area of less than 150 m2 per gully. ACO provides systems for professional grade, efficient, and hygienic surface water and building drainage. ACO ShowerDrain solutions are designed to inspire creative bathroom planning. For smaller areas, systems for gravity drainage are suitable.