Our Built Up Roof System Products

When fully fixed and sealed, our built up roof system is walkable and provides a tested Non-Fragile assembly, with U-values as low as 0.11W/m²K, air permeability tested to less than 1.0 m³/hr.m² and up to a 40 year Complete Assurance Guarantee, subject to specification choice.

The design and installation method allows for the insulation to be installed continuously, minimising thermal bridging. The sealed liner panel achieves a vapour resistivity significantly greater than that of a separate VCL (vapour control layer), eliminating the requirement for either a separate VCL or breather membrane for roof constructions up to humidity class 4.

The CA Twin-Therm^® built up roof system offers developers, specifiers, contractors and architects a cost-effective roof solution with a high degree of flexibility, enabling the building designer to choose a system that caters for their architectural needs.

CA Twin-Therm^® Built Up Roof System Specifications

CA Twin-Therm^® complete built up roof system includes:

Non-Fragile Therma-light rooflights

Non-Fragile and walkable outer sheet

All flashings, gutters and associated ancillaries

BS EN 13501-5 B_ROOF(t4) outersheet

LPS 1181-1 Grade ‘EXT-B’ as standard

Independent Agrément certification

Robust, rigorously tested as a complete system

Superior protection from the elements

Optimises internal space

U-values as low as 0.11W/m²K

Air permeability as low as 0.33m³/hr.m²

Non-Fragile Class B or C to ACR[M]001:2019, refer to system specification details

Can be used as a maintenance walkable surface throughout its guaranteed lifespan

Designed to provide enhanced water tightness and low air permeability

Available in a range of colours and finishes, including Tata Steel Colorcoat HPS200 Ultra^® or Colorcoat Prisma^®and as an additional service Repertoire^®Colour Consultancy

Superior weathertightness means no leaks or water ingress when installed in accordance with CA recommendations

No additional membranes such as breather membrane or vapour control membrane required up to humidity class 4

Fully walkable for guaranteed lifespan

Single source supply offering CA Group Complete Assurance Guarantee for 25, 30 or 40 years. Confidex^® Guarantee by Tata Steel

Unique rooflight design permits easy adaptability of building daylight layouts for future-proofing of the building design

Optional Colorcoat^® High Reflect liner for enhanced natural daylighting

Rooflights easily incorporated and suitable for a variety of layouts

Complete system certification to Agrément and LPCB standards

SecureRoof solution approved to Secured By Design (SBD) standards

Independently assessed EPD (Environmental Product Declaration)

Superior acoustic performance

Optional Chronus and Chronus Ready patented controlled environment solution available

CA BUILDING PRODUCTS, Roof (cA Twin-Therm^®)

CA Twin-Therm^® Pitched Roof

Typically used for pitched roofs with roof pitches down as low as 4.5⁰ design as standard (3.0⁰ after settlement and deflection) CA Twin-Therm^® roof system is a proven, reliable, non-combustible site assembled insulated roof system.

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CA BUILDING PRODUCTS, Roof (CA Twin-Therm^®)

CA Twin-Therm^® Curved Roof

CA Twin-Therm^® Quantum is a profiled, self-curved roof design running from gutter to gutter incorporating all the features and benefits of the standard CA Twin-Therm^® system, with some additional advantages.

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CA BUILDING PRODUCTS

More Information

Colorcoat Prisma^®

Colorcoat HPS200 Ultra^®

CONFIDEX^®Guarantee

Colorcoat^®high reflect

Repertoire^®Colour Consultancy

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CA BUILDING PRODUCTS

Wall (CA Twin-Therm^®)

CA Twin-Therm^® built up wall cladding systems are intended to give the best possible aesthetic performance while simplifying the design. The liner arrangement is the same for all options, helping to future-proof the building envelope design with fire resistance as standard.

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Wall (CA Twin-Therm^®)

CA Twin-Therm^® Vertical Wall

CA Twin-Therm^® Horizontal Wall

CA BUILDING PRODUCTS, Roof (CA Twin-Therm^®)

CA Twin-Therm^® Curved Roof

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Curved ROof

CA Twin-Therm^® Quantum Roof

CA Twin-Therm^® Griffon Roof

CA BUILDING PRODUCTS, Roof (CA Twin-Therm^®)

CA Twin-Therm^® Pitched Roof

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CA Building Products
Built Up Roof & Wall

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CA Building Products

Wall (CA Twin-Therm^®)

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Wall (Twin-Therm^®)

CA Twin-Therm^® Vertical Wall

CA Twin-Therm^® Horizontal Wall

CA Building Products

More Information

Colorcoat Prisma^®

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Colorcoat HPS200 Ultra^®

CONFIDEX^®Guarantee

Colorcoat^®high reflect

Repertoire^®Colour Consultancy

CA BUILDING PRODUCTS, Roof (CA Twin-Therm^®)

CA Twin-Therm^® Curved Roof

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Curved ROof

CA Twin-Therm^® Quantum Roof

CA Twin-Therm^® Griffon Roof

CA BUILDING PRODUCTS, Roof (CA Twin-Therm^®)

CA Twin-Therm^® Pitched Roof

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