External site assembled insulated roof systems

Trisobuild® R is Building Systems UK’s site-assembled built-up roofing system that comprises a Colorcoat® pre-finished steel LP1000 trapezoidal liner, the Instaloc® Plus spacer system for structural depth and insulation cavity, a glass fibre quilt insulation layer and a Colorcoat® pre-finished steel external weathering profile. The Trisobuild® RWL is the walkable liner variant, using a more robust 0.7mm RL32 liner ideal for safe access during construction.
 

Manufactured in factory conditions operating to quality management standard BS EN ISO 9001:2015, environmental management standard BS EN ISO 14001: 2015 and occupational health and safety management standard BS EN ISO 45001:2018. Full traceability of all component materials and certified ‘very good’ to BRE’s responsible sourcing standard BES 6001. Available with a bespoke Environmental Product Declaration to EN 15804.
 

Platinum® Plus 25 year system guarantee.

Trisobuild® and a range of system components including fixings, wall lights, sealants and fillers are available with our Platinum® Plus system guarantee providing a complete building envelope solution guarantee for 25 years. Colorcoat Prisma® pre-finished steel is used as standard, offering long-term performance with the Confidex® Guarantee and providing peace of mind for up to 40 years.

For full technical information download the datasheet

Roof exposure to fire

The Trisobuild® external profile, in all available finishes, achieves BROOF(t4) in accordance with BS EN 1187.

Third party accreditations

• LPCB (Loss Prevention Certification Board) approval to LPS 1181 Part 1.2 certified to EXT-B for all thicknesses.
• Specification is critical for compliance. Our Technical Team can help you with your specification drafting - or you can use our SPECGEN tool.

Thermal performance

Trisobuild® R & RWL complies with the minimum requirements of the conservation of fuel and power sections of the Building Regulations for England and Wales (Part L2) and Scotland (Technical Handbook Section 6 Energy). Thermal performance is calculated using computer modeling in accordance with EN ISO 10211 and assessed using the methods and conventions set out in the Building Research Establishment’s Document BR 443.

Air-tightness

Airtightness for Trisobuild® systems is generated by the liner sheet.  When end laps and side laps are sealed, as shown on next page, sheet laboratory tests have shown  leakage rates of <0.20m3/h/m2 for liner side laps and <0.30m3/h/m2 for liner end laps. These low leakage rates together with robust junction detailing and workmanship will allow the system to comfortably meet and exceed the building regulation requirements.

Weatherability and water penetration

To meet the primary function, the outer sheet of the Trisobuild® system should be sealed at both side and end laps to ensure weathertightness from the outside - see details below. It is recommended that the Trisobuild® R and RWL systems are installed to a minimum design pitch of 4 degrees after deflection. The only exception is the 13.5/3 sinusoidal profile, which should be installed to a minimum pitch of 10 degrees.

Acoustic performance

The method for determining the airborne sound insulation of a building is specified in BS EN ISO 10140-2.  Airborne noise may be a consideration from either internal process noise breakout e.g. a factory in a residential area, or external noise break-in e.g. airport terminal buildings.  A building with a higher Sound Reduction Index (SRi) has a better acoustic performance.
 

For full technical information download the datasheet

Specification Generator tool - SPECGEN

Our online specification generator tool has been designed to help you create the right specification to suit the needs of your project, making sure all roofing and cladding components listed are compatible and perform as a guaranteed system.

Technical Design Support

Our dedicated technical team are available to provide support and advice on the best product for your project. Contact our technical team here.

 For full technical information download the datasheet

BES 6001 Responsible Sourcing

Building Systems UK operations, supply chain and products are certified under the BRE Responsible Sourcing Framework Specification BES 6001. We are able to help our customers to operate more sustainably by providing guidance on the specification of our products and the impact on obtaining credits under building certification schemes such as BREEAM.

Find out more about responsible sourcing

Environmental Product Declarations (EPDs)

Building Systems UK’s vision is to ‘enable the creation of sustainable spaces where we live work and play’. As a manufacturer we have a duty to operate responsibly and in a transparent way. Building Systems UK are one of the most transparent and reported construction product manufacturers in the UK, with a unique offering of project specific and bespoke Environmental Product Declarations. This is enabled by our unique operatorship of an Environmental Product Declaration Programme.

Find out more about EPDs and request your project specific EPD

Optemis® Carbon Lite

Optemis Carbon Lite is a fully certified in-setting scheme verified by leading assurance organisation DNV. Our continued commitment to decarbonisation means reductions in CO2 emissions can now be passed on to our customers, enabling them to achieve immediate Scope 3 emission savings.

Revenues generated from the sale of Optemis Carbon Lite certificates are used to fund additional projects, generating further CO2 savings to be verified by DNV and speeding up our decarbonisation efforts.

Find out more about Optemis Carbon Lite

For full technical information download the datasheet

Find related downloads below for your project specification:

Delivery Guide

Roof Installation Guide

HorIzontal Wall Installation Guide

Vertical Wall Installation Guide

The Trisobuild® CR system is a tried and tested assembly with a through fixed trapezoidal outer sheet which can self-curve around a range of radii. The system is specified with an apex sheet long enough to ensure that the end lap of the profile or roof light is below the 4 degree pitch of the curve.

Designing the roof and using Trisobuild® CR within this radius range allows the specifier to optimise cost and provide an attractive low profile roof, with the confidence that all detailing has been third-party assessed.

Table below assumes radius of roof is after designed deflection.

If you have any questions or for further information click here to contact us.

Request a product sample

All our products are fully tested by third parties for criteria such as thermal performance, fire safety, acoustic performance, air-tightness, and resistance to water penetration. This together with our extensive and unbiased technical support sets us apart.

All Trisobuild^® roof systems can be covered under our Platinum^® Plus system guarantee. Simply fill in your project details using our easy-to-use online specification tool or contact us directly.

All Trisobuild^® components are easily handled on site without specialist mechanical equipment, due to lightweight components. This can be important when working on sites with limited access.

Loss Prevention Certification Board (LPCB) approval to LPS 1181 part 1 for fire performance, helps to lower insurance premiums.

All Trisobuild^® roof systems when finished in Colorcoat HPS200 Ultra^® or Colorcoat Prisma^® will achieve a B_ROOF(t4) in accordance with EN 1187 and satisfy Building Regulations in relation to fire.

An Environmental Product Declaration (EPD) is available for all the Trisobuild® roof system solutions. Request a bespoke product or system specific EN 15804 Type III EPD to help accrue points under building certification schemes such as LEED and BREEAM.

If you have any questions or for further information click here to contact us.

Platinum^® Plus is a system guarantee for 25 years, that covers the durability, structural and thermal performance of all system components.

The guarantee is derived from a tailored specification to suit your building function and is fully transferable on change of ownership of the building. Our reputable supply chain partners and commitment to responsible sourcing creates an enhanced building envelope system that is robust and proven.

View our interactive brochure for more information or watch our video below

Platinum^® Plus offers enduring durability and building performance, lowering cost of ownership through the life of the building.

We understand that complex buildings need tailored solutions, so our online specification tool has been designed by our technical team to help you create the right specification to suit the needs of your project. We make sure all roofing and cladding components listed are compatible with ours and perform together as a system.

Our support continues through on-site checks, ensuring the products installed are in accordance with the specification.

At completion, the Platinum^® Plus system guarantee is issued direct to the building owner, who enjoys the long term reassurance that any issue will be dealt with through a single point of contact.

When you choose Platinum^® Plus, you’re choosing guaranteed performance, and lower operating and maintenance costs for the life of the building. 

Key features of Platinum^® Plus system guarantee

In addition to the benefits that our cladding products provide, Platinum^® Plus also offers:

• 25 years transferable guarantee provided direct to building owner
• Support from specification to on-site check
• Create and store your tailored specifications via our online tool
• One point of contact for help with system issues
• Flexibility in design through our wide range of system options
• Fully traceable products manufactured through our integrated supply chain
• 50 years of experience and extensive testing of our products
• Underpinned by Confidex^® Guarantee for the pre-finished steel

The Platinum^® Plus system guarantee is available on our Formawall^®, Trisomet^®, Trimapanel^® and Trisobuild^® products.

As well as our roof and wall cladding systems, Platinum^® Plus includes all flashings, boundary gutters, sealant, fasteners and safe link systems when named in the project specification.

End-to-end reassurance

Our building envelope technical team is on hand to build the right specification to meet your requirements including advice on:

• Specification writing.
• Acoustic SRI predictions.
• Wind and snow load calculations.
• Load span checks.
• Building regulation advice.
• Gutter design.
• Assistance with SBEM.
• U-value calculation.
• BREEAM advice.
• Detail design.
• Condensation risk analysis.

To begin the specification process please complete your project details through our online specification tool or contact us to speak to one of our technical team click here to contact us.

BIM: The way you want it

The DNA Profiler has been designed to allow you to access Tata Steel’s product information (3d parametric objects & data) how you want, when you want, to the level of detail you want, in the format you want.

If you have any questions or for further information click here to contact us.

The launch of Optemis Carbon Lite is an important step in our ongoing decarbonisation journey. It demonstrates our progress and represents a unique solution for customers in the form of a flexible, lower CO₂ steel offering.

Optemis Carbon Lite is a fully certified in-setting scheme with CO₂ savings achieved from implemented projects, verified by a 3rd party auditor, DNV, and credited to our CO2 bank.  Our continued commitment to decarbonisation means reductions in CO₂ emissions can now be passed on to our customers, enabling them to achieve immediate Scope 3 emission savings.

Revenues generated from the sale of Optemis Carbon Lite declarations are used to fund additional decarbonisation projects, generating further CO₂ savings to be verified by DNV and speeding up our decarbonisation efforts.

By buying Optemis Carbon Lite from Tata Steel UK we, and our customers, will be actively contributing to a reduction in atmospheric CO₂.

Find out more about Optemis Carbon Lite

Find related downloads below for your project specification:

Trisobuild® R/RWL installation guide video

We offer a range of face to face and online CPDs aimed at Engineers and Architects

These free face to face seminars can be booked at any time between 9am and 5pm. Our online webinars can all be delivered via Skype for Business and Teams, but we can consider other platforms if this will not work for your practice.

Below outline the CPDs we have available - Book yours today

• Essentials of Structural Hollow Sections
• Welded Joints in Tubular Steelwork - Eurocode 3 Part 1-8
• Concrete Filled Hollow Sections - Composite Design – Eurocode 4
• Composite Floor Deck in Construction
• Structural Roof Deck in Construction
• Specifying metal clad envelope systems in accordance with ADB2 of the building regulations and the value of large scale system testing
• RIBA 2030 climate challenge: How steel building envelope solutions contribute
• Pre-finished steel standing seam systems for roof & wall cladding
• CDM regulations 2015 and their impact on steel building envelope specification.
• Steel building envelope systems for non-domestic buildings
• Steel for roof and wall cladding

Book your CPD today

Acoustic performance is an increasingly important functional requirement for good building design. Whether it is reducing noise levels within a factory environment or eliminating nuisance from sound in residential areas, acoustic control is a significant aspect of steel cladding design.

Trisobuild® sound reduction systems

This type of system relies on the mass of the materials and damping control.  We have a large library of test data and can predict noise reduction performance of systems to the needs of your project.  Please contact our Technical Team for further advice.

Trisobuild SA systems

Trisobuild® SA1 and SA2 systems are tested assemblies that provide excellent sound absorption. Both systems use the RL32 as their liner profile with the SA1 being trough perforated and the SA2 being fully perforated. The troughs of the liner can either be left unfilled or stone wool trough fillers can be used to enhance the performance. 

To enable simple comparison between products acoustic materials are classed on a scale from A to E, with A-rated products having the highest rated sound absorption performance.  Our Trisobuild systems offer a performance range between C and A and can be specified for the needs of your building. Please contact our Technical Team for further advice.

If you have any questions or for further information click here to contact us.

Request a product sample

All our products are fully tested by third parties for criteria such as thermal performance, fire safety, acoustic performance, air-tightness, and resistance to water penetration. This together with our extensive and unbiased technical support sets us apart.

All Trisobuild^® roof systems can be covered under our Platinum^® Plus system guarantee. Simply fill in your project details using our easy-to-use online specification tool or contact us directly.

All Trisobuild^® components are easily handled on site without specialist mechanical equipment, due to lightweight components. This can be important when working on sites with limited access.

Loss Prevention Certification Board (LPCB) approval to LPS 1181 part 1 for fire performance, helps to lower insurance premiums.

All Trisobuild^® roof systems when finished in Colorcoat HPS200 Ultra^® or Colorcoat Prisma^® will achieve a B_ROOF(t4) in accordance with EN 1187 and satisfy Building Regulations in relation to fire.

An Environmental Product Declaration (EPD) is available for all the Trisobuild® roof system solutions. Request a bespoke product or system specific EN 15804 Type III EPD to help accrue points under building certification schemes such as LEED and BREEAM.

If you have any questions or for further information click here to contact us.

Platinum^® Plus is a system guarantee for 25 years, that covers the durability, structural and thermal performance of all system components.

The guarantee is derived from a tailored specification to suit your building function and is fully transferable on change of ownership of the building. Our reputable supply chain partners and commitment to responsible sourcing creates an enhanced building envelope system that is robust and proven.

View our interactive brochure for more information or watch our video below

Platinum^® Plus offers enduring durability and building performance, lowering cost of ownership through the life of the building.

We understand that complex buildings need tailored solutions, so our online specification tool has been designed by our technical team to help you create the right specification to suit the needs of your project. We make sure all roofing and cladding components listed are compatible with ours and perform together as a system.

Our support continues through on-site checks, ensuring the products installed are in accordance with the specification.

At completion, the Platinum^® Plus system guarantee is issued direct to the building owner, who enjoys the long term reassurance that any issue will be dealt with through a single point of contact.

When you choose Platinum^® Plus, you’re choosing guaranteed performance, and lower operating and maintenance costs for the life of the building. 

Key features of Platinum^® Plus system guarantee

In addition to the benefits that our cladding products provide, Platinum^® Plus also offers:

• 25 years transferable guarantee provided direct to building owner
• Support from specification to on-site check
• Create and store your tailored specifications via our online tool
• One point of contact for help with system issues
• Flexibility in design through our wide range of system options
• Fully traceable products manufactured through our integrated supply chain
• 50 years of experience and extensive testing of our products
• Underpinned by Confidex^® Guarantee for the pre-finished steel

The Platinum^® Plus system guarantee is available on our Formawall^®, Trisomet^®, Trimapanel^® and Trisobuild^® products.

As well as our roof and wall cladding systems, Platinum^® Plus includes all flashings, boundary gutters, sealant, fasteners and safe link systems when named in the project specification.

End-to-end reassurance

Our building envelope technical team is on hand to build the right specification to meet your requirements including advice on:

• Specification writing.
• Acoustic SRI predictions.
• Wind and snow load calculations.
• Load span checks.
• Building regulation advice.
• Gutter design.
• Assistance with SBEM.
• U-value calculation.
• BREEAM advice.
• Detail design.
• Condensation risk analysis.

To begin the specification process please complete your project details through our online specification tool or contact us to speak to one of our technical team click here to contact us.

BIM: The way you want it

The DNA Profiler has been designed to allow you to access Tata Steel’s product information (3d parametric objects & data) how you want, when you want, to the level of detail you want, in the format you want.

If you have any questions or for further information click here to contact us.

The launch of Optemis Carbon Lite is an important step in our ongoing decarbonisation journey. It demonstrates our progress and represents a unique solution for customers in the form of a flexible, lower CO₂ steel offering.

Optemis Carbon Lite is a fully certified in-setting scheme with CO₂ savings achieved from implemented projects, verified by a 3rd party auditor, DNV, and credited to our CO2 bank.  Our continued commitment to decarbonisation means reductions in CO₂ emissions can now be passed on to our customers, enabling them to achieve immediate Scope 3 emission savings.

Revenues generated from the sale of Optemis Carbon Lite declarations are used to fund additional decarbonisation projects, generating further CO₂ savings to be verified by DNV and speeding up our decarbonisation efforts.

By buying Optemis Carbon Lite from Tata Steel UK we, and our customers, will be actively contributing to a reduction in atmospheric CO₂.

Find out more about Optemis Carbon Lite

Find related downloads below for your project specification:

Trisobuild® R/RWL installation guide video

We offer a range of face to face and online CPDs aimed at Engineers and Architects

These free face to face seminars can be booked at any time between 9am and 5pm. Our online webinars can all be delivered via Skype for Business and Teams, but we can consider other platforms if this will not work for your practice.

Below outline the CPDs we have available - Book yours today

• Essentials of Structural Hollow Sections
• Welded Joints in Tubular Steelwork - Eurocode 3 Part 1-8
• Concrete Filled Hollow Sections - Composite Design – Eurocode 4
• Composite Floor Deck in Construction
• Structural Roof Deck in Construction
• Specifying metal clad envelope systems in accordance with ADB2 of the building regulations and the value of large scale system testing
• RIBA 2030 climate challenge: How steel building envelope solutions contribute
• Pre-finished steel standing seam systems for roof & wall cladding
• CDM regulations 2015 and their impact on steel building envelope specification.
• Steel building envelope systems for non-domestic buildings
• Steel for roof and wall cladding

Book your CPD today