Malagrida Invisible Grated Channels for Draining Aesthetically Refined Spaces
Are you a landscaper, hotel manager, or simply a private individual looking to protect your spaces from surface water? Thanks…
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Floor level height: 8.5 cm
Screed level height: 7 cm
Tecnochannel is the new product developed by Malagrida Group, specifically designed to address renovation challenges in surfaces with limited height.
Engineered with an extremely reduced thickness (70 mm at screed level and 85 mm at finished floor level), it sets a new benchmark in the low-profile linear drainage sector. The channel features an innovative design and technical solutions that simplify installation. Tecnochannel is the ideal drainage solution where there is not enough space in the floor slab.
The Tecnochannel channel is an advanced linear drainage system that is 100% watertight and allows for efficient surface water flow. It is suitable for paved structures in both indoor and outdoor environments. The system is made of plastic and consists of 1.50-meter-long modules connected in a continuous line.
The section and internal slope of the Tecnochannel drainage channels enhance the water flow speed and self-cleaning effect, helping to prevent debris buildup at the bottom of the channel.
The material and construction design make Tecnochannel very lightweight, offering significant logistical advantages.
Tecnochannel features an internal slope, allowing for flat installation and simplifying the installation process.
Around the channel body, there is a flange with an applied felted fabric that enables connection to insulation systems using thin-bed techniques. The frames on both the channel and the special components are made of AISI 316L stainless steel.
The Tecnochannel system is completed with compatible special parts, such as: drain terminals, end caps, AISI 304 stainless steel grates, and accessories to ensure a watertight seal.
Note: Grates can be supplied in AISI 316L stainless steel upon request.
The channel is easy to inspect and clean.
Areas of application
Assembly
The assembly and installation instructions on the following “Technical Data Sheet” are distributed for demonstration purposes only. Special mountings or special needs should be evaluated by Malagrida Group s.r.l. in accordance with the designer. Correct commissioning of the system is necessary in order to ensure that it (duct-grille) has a longer life span and better water flow-off.
1. Correct assembly
2. Assembled duct and duct spacers
3. Duct placed on spacers
4. Positioning of a weight on spacers
5. Formwork construction
6. Finished formwork
7. Detail of the formwork at the point of discharge
8. Screed made
9. Bonding the joint strip
10. Laying waterproofing with physical sheathing and perimeter strip
11. Laying tiles on a framed system
12. Laying tiles on a framed system
13. Completed system with frames
14. Detail of framed system
1. Correct assembly
2. Assembled duct and duct spacers
3. Duct placed on spacers
4. Positioning of a weight on spacers
5. Formwork construction
6. Finished formwork
7. Detail of the formwork at the point of discharge
8. Screed made
9. Bonding the joint strip
10. Laying waterproofing with physical sheathing and perimeter strip
11. Laying tiles on a framed system
12. Laying tiles on a framed system
13. Completed system with frames
14. Detail of framed system
See al phases
Phase 1
Check that the lip-round seals are placed in their housing at the ends of the channel and are not deformed.
Phase 2
Assemble the ducts after lubricating the male joint with the approved lubricant, taking care to place the flat seal between the sections. The flat seal has to adhere perfectly to the mounting flange of the ducts. Position the galvanized iron connecting plates outside the mounting flange of the ducts, and fasten the ducts with the screws and bolts provided, making sure to tighten the bolt using a “criss-cross” sequence, without tightening too much to prevent the flat seal from coming out. Incorrect fastening can compromise the waterproofing of the system. To make assembly easier, we suggest performing the assembly phases mentioned above with the ducts upside down. It is recommended to perform the assembly on flat surfaces. To complete the assembly with elements like the end caps and the drain terminals carefully repeat Phases 1-2.
Phase 3
Put the channel into the position of use.
Important Note: If the duct is more than 3 meters long, more fitters will be required in order to avoid any abnormal twists to the duct. Lay the channel at the project height and make the screed with the grille already mounted.
Please Note: Once the previous steps have been carried out correctly, we recommend flooding the duct system to check its waterproofing.
Phase 4
Make the formwork or duct access box (as shown in the figure) with structural fluid cement mortar with a minimum thickness on the side of the felted fins of 5 cm, taking care to fill it evenly on the exterior.
Please Note: The step described above must be carried out once the grille has been installed. This is of fundamental importance because it prevents the duct from expanding during freeze-thaw cycles (temperature changes).
Phase 5
Connect the duct with the drainage system (with the proper size and gradient).
Please Note: Only use pipes with o-ring waterproof seals.
Phase 6
Run the sloping screed up against the previously made concrete formwork or box, taking care not to ruin the fabric on it, as this would result in a reduced seal of any waterproofing system to be carried out later. We recommend protecting the fabric. Any waterproofing must be carried out in adherence to the felt flap in accordance with the instructions provided by the manufacturer of the waterproofing system. It is necessary, however, in order to connect the waterproofing system and the channel, to apply the strip junction (ARTICLE INF/BAND) listed in the catalogue/price list.
Phase 7
Lay the paving, making sure that the finished level is at least 1 mm above the stainless steel frames (grille and duct).
Note: the use of an expansion joint is advisable between the channel and the floor. Inside the stainless steel tile grille, a silicone grout between tile and steel is recommended on the laid floor.
The company accepts no liability for assembly or installation errors.
See al phases
Phase 1
Check that the lip-round seals are placed in their housing at the ends of the channel and are not deformed.
Phase 2
Assemble the ducts after lubricating the male joint with the approved lubricant, taking care to place the flat seal between the sections. The flat seal has to adhere perfectly to the mounting flange of the ducts. Position the galvanized iron connecting plates outside the mounting flange of the ducts, and fasten the ducts with the screws and bolts provided, making sure to tighten the bolt using a “criss-cross” sequence, without tightening too much to prevent the flat seal from coming out. Incorrect fastening can compromise the waterproofing of the system. To make assembly easier, we suggest performing the assembly phases mentioned above with the ducts upside down. It is recommended to perform the assembly on flat surfaces. To complete the assembly with elements like the end caps and the drain terminals carefully repeat Phases 1-2.
Phase 3
Put the channel into the position of use.
Important Note: If the duct is more than 3 meters long, more fitters will be required in order to avoid any abnormal twists to the duct. Lay the channel at the project height and make the screed with the grille already mounted.
Please Note: Once the previous steps have been carried out correctly, we recommend flooding the duct system to check its waterproofing.
Phase 4
Make the formwork or duct access box (as shown in the figure) with structural fluid cement mortar with a minimum thickness on the side of the felted fins of 5 cm, taking care to fill it evenly on the exterior.
Please Note: The step described above must be carried out once the grille has been installed. This is of fundamental importance because it prevents the duct from expanding during freeze-thaw cycles (temperature changes).
Phase 5
Connect the duct with the drainage system (with the proper size and gradient).
Please Note: Only use pipes with o-ring waterproof seals.
Phase 6
Run the sloping screed up against the previously made concrete formwork or box, taking care not to ruin the fabric on it, as this would result in a reduced seal of any waterproofing system to be carried out later. We recommend protecting the fabric. Any waterproofing must be carried out in adherence to the felt flap in accordance with the instructions provided by the manufacturer of the waterproofing system. It is necessary, however, in order to connect the waterproofing system and the channel, to apply the strip junction (ARTICLE INF/BAND) listed in the catalogue/price list.
Phase 7
Lay the paving, making sure that the finished level is at least 1 mm above the stainless steel frames (grille and duct).
Note: the use of an expansion joint is advisable between the channel and the floor. Inside the stainless steel tile grille, a silicone grout between tile and steel is recommended on the laid floor.
The company accepts no liability for assembly or installation errors.
The installation and laying instructions detailed in the following “Technical Data Sheet” are provided exclusively as examples to allow the final fitter to follow the best recommendations for installation. Special assemblies or requirements need to be evaluated by Malagrida Group s.r.l. in accordance with the designer. The correct installation of the system is necessary to ensure it (duct-grille) a longer life and a better water flow.
For the correct use of the example laying diagrams below, we recommend following these simple tips as it will be much easier to find the right item and sizing for your job.
- Identify the linear metres of Tecnochannel you need for your work.
- Identify the position of the drainage points and the diameter of your balconies/terraces/lawns, etc. in order to be able to slope the duct towards them with the help of the dotted line on the diagrams.
- Choose the most appropriate Tecnochannel for your work taking into account points 1 and 2.
- Carefully follow the instructions for use accompanying the products.
- The products have been designed for domestic use, thus limitations of use apply.
- Hot water flowing only for a short time at a maximum temperature of 90°C.
- Do not use chemical cleaners to remove any deposits inside the channel.
- The stainless steel surfaces, exposed to the environmental elements or aggressive substances, should be cleaned periodically using a mild cleaning product. Regular cleaning not only gives the stainless steel a shiny appearance, but also prevents corrosion. The cleaning product must be free of hydrochloric and hydrofluoric acid.
- Avoid contact with other metals, such as for example non-stainless steel, since contact may cause rusting. The same is valid for the use of tools such as spatulas or steel wool, used to clean mortar, glue and stucco.
- The channel system is suitable to achieve waterproofing with liquid primers or insulation compounds for thin-bed installations.
- To correctly design and choose the appropriate channel system, it is necessary to know the square meters that the channel system must drain so that the proper channel size for the application can be determined.
- Periodic maintenance of the channel is recommended to avoid accumulation of dirt inside it.
- The product is sensitive to certain petrol by-products.
Please Note: Malagrida Group reserves the right to modify the specifications contained herein without prior notice, being the information provided purely indicative and subject to change based on product development. Furthermore, the indications in this data sheet, while corresponding to our best knowledge, are in any case to be considered indicative and will have to be confirmed by exhaustive practical applications. Therefore, the user of the product must assess whether or not it is suitable for use and in any case assumes all liability that may arise from same.
Supply and installation of Tecnochannel watertight drainage channel with double slits. (Art. TCN/C150, TCN/C300). This channel is made of Polypropylene (PP). Minimum thickness 3 mm, standard height 8.5 cm with internal slope and infinitely modular. The body of the channel is reinforced by fins, both longitudinally and transversely, which give it rigidity and strength, while peripherally, on the outer top, it is equipped with a felted fabric permitting the mechanical attachment of the waterproofing system.
Note: To perform the connection between the waterproofing system and the channel follow the manufacturer’s instructions of waterproofing products and always use the junction strip (art. INF / BAND12). The tileable type grid in the upper part is provided with a felted fabric that allows the mechanical attachment of the tile using commercially available adhesives.
Please Note: Follow adhesive manufacturer’s directions in order to use the correct adhesive. The duct-grille system presents two 8 mm drain slits, and is provided with drain terminals (Art. INFF/S50, INFF/S75A, INFF/S75B, INFF/S90) and end pieces (INFF/T100) compatible with the ducting by means of a male/female coupling equipped with lip seal and through a mechanical flange equipped with an additional flat silicone seal, reinforcement plates, screws and bolts.
The installation and laying instructions detailed in the following “Technical Data Sheet” are provided exclusively as examples to allow the final fitter to follow the best recommendations for installation. Special assemblies or requirements need to be evaluated by Malagrida Group s.r.l. in accordance with the designer. The correct installation of the system is necessary to ensure it (duct-grille) a longer life and a better water flow.
For the correct use of the example laying diagrams below, we recommend following these simple tips as it will be much easier to find the right item and sizing for your job.
- Identify the linear metres of Tecnochannel you need for your work.
- Identify the position of the drainage points and the diameter of your balconies/terraces/lawns, etc. in order to be able to slope the duct towards them with the help of the dotted line on the diagrams.
- Choose the most appropriate Tecnochannel for your work taking into account points 1 and 2.
- Carefully follow the instructions for use accompanying the products.
- The products have been designed for domestic use, thus limitations of use apply.
- Hot water flowing only for a short time at a maximum temperature of 90°C.
- Do not use chemical cleaners to remove any deposits inside the channel.
- The stainless steel surfaces, exposed to the environmental elements or aggressive substances, should be cleaned periodically using a mild cleaning product. Regular cleaning not only gives the stainless steel a shiny appearance, but also prevents corrosion. The cleaning product must be free of hydrochloric and hydrofluoric acid.
- Avoid contact with other metals, such as for example non-stainless steel, since contact may cause rusting. The same is valid for the use of tools such as spatulas or steel wool, used to clean mortar, glue and stucco.
- The channel system is suitable to achieve waterproofing with liquid primers or insulation compounds for thin-bed installations.
- To correctly design and choose the appropriate channel system, it is necessary to know the square meters that the channel system must drain so that the proper channel size for the application can be determined.
- Periodic maintenance of the channel is recommended to avoid accumulation of dirt inside it.
- The product is sensitive to certain petrol by-products.
Please Note: Malagrida Group reserves the right to modify the specifications contained herein without prior notice, being the information provided purely indicative and subject to change based on product development. Furthermore, the indications in this data sheet, while corresponding to our best knowledge, are in any case to be considered indicative and will have to be confirmed by exhaustive practical applications. Therefore, the user of the product must assess whether or not it is suitable for use and in any case assumes all liability that may arise from same.
Supply and installation of Tecnochannel watertight drainage channel with double slits. (Art. TCN/C150, TCN/C300). This channel is made of Polypropylene (PP). Minimum thickness 3 mm, standard height 8.5 cm with internal slope and infinitely modular. The body of the channel is reinforced by fins, both longitudinally and transversely, which give it rigidity and strength, while peripherally, on the outer top, it is equipped with a felted fabric permitting the mechanical attachment of the waterproofing system.
Note: To perform the connection between the waterproofing system and the channel follow the manufacturer’s instructions of waterproofing products and always use the junction strip (art. INF / BAND12). The tileable type grid in the upper part is provided with a felted fabric that allows the mechanical attachment of the tile using commercially available adhesives.
Please Note: Follow adhesive manufacturer’s directions in order to use the correct adhesive. The duct-grille system presents two 8 mm drain slits, and is provided with drain terminals (Art. INFF/S50, INFF/S75A, INFF/S75B, INFF/S90) and end pieces (INFF/T100) compatible with the ducting by means of a male/female coupling equipped with lip seal and through a mechanical flange equipped with an additional flat silicone seal, reinforcement plates, screws and bolts.
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Faqs
What is the best material for building drainage systems?
It depends on the application context. For channels intended for pedestrian areas, plastic polymers such as Polypropylene (PP) are preferred, as they are lighter and easier to clean.
How can I check the load capacity of drainage channels?
The load class of drainage systems is indicated by an alphanumeric code. Malagrida Group drainage channels, classified as A15, are suitable for pedestrian and bicycle areas.
How are Malagrida linear drainage systems installed?
Before installation, a sufficiently deep bed must be prepared to accommodate the channels. Once the flooring is ready, installation can proceed using a formwork and support box.
Thanks to the light weight of PP channels, the entire operation can be completed without the need for special construction equipment.
Pro tip: if you need to move a channel longer than 3 meters, lift it with the help of others to avoid twisting.
Detailed installation instructions for our linear drainage channels are available on the product pages.
How resistant are the internal PP ducts of Malagrida channels?
Polypropylene (PP) differs significantly from common-use polymers: it has high mechanical strength and excellent chemical stability.
This material can withstand high temperatures (over 90°C), but we do not recommend its use in environments where the temperature drops below freezing.
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