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