CA BUILDING PRODUCTS, Built up roof & wall, Roof (CA Twin-Therm®)

CA Twin-Therm® Built Up Roof System

Superior performance, non-combustible, non-fragile, highly functional and flexible, CA Group’s world-renowned CA Twin-Therm® built up roof system provides advanced technical performance, adaptability and longevity.

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 BROOF(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
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.

Find out more
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.

Find out more
DISCOVER MORE
CA BUILDING PRODUCTS
More Information
Colorcoat Prisma®
Colorcoat HPS200 Ultra®
CONFIDEX® Guarantee
Colorcoat® high reflect
Repertoire® Colour Consultancy
FIND OUT MORE
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.

FIND OUT MORE
FIND OUT MORE
FIND OUT MORE
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

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.

FIND OUT MORE
FIND OUT MORE
FIND OUT MORE
Curved ROof
CA Twin-Therm® Quantum Roof
CA Twin-Therm® Griffon Roof
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.

FIND OUT MORE
FIND OUT MORE
FIND OUT MORE

CA Building Products
Built Up Roof & Wall

CA Building Products
Built Up Roof & Wall

DISCOVER MORE
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.

FIND OUT MORE
FIND OUT MORE
FIND OUT MORE
Wall (Twin-Therm®)
CA Twin-Therm® Vertical Wall
CA Twin-Therm® Horizontal Wall
CA Building Products
More Information
Colorcoat Prisma®
FIND OUT MORE
FIND OUT MORE
Colorcoat HPS200 Ultra®
CONFIDEX® Guarantee
Colorcoat® high reflect
Repertoire® Colour Consultancy
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.

FIND OUT MORE
FIND OUT MORE
FIND OUT MORE
Curved ROof
CA Twin-Therm® Quantum Roof
CA Twin-Therm® Griffon Roof
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.

FIND OUT MORE
FIND OUT MORE
FIND OUT MORE

Find Out More

Working closely with our supply chain partners, designed with the end-user in mind, we’ve developed a core range of products that integrate to form one of the UK’s most advanced built-up roof and wall systems on the market. Available with the CA Group Complete Assurance Guarantee for 25, 30 or 40 years complete system guarantee.
View our

Roofing
Services

View our

Maintenance, Refurbishment
& Hire Services

View our

Case
Studies

Need more information
or technical advice?

Our in-house team of construction experts are on hand to help with CA Group product information and any aspect of design, specification, application and performance-related queries you may have.

General:  

+44 (0) 1388 834 242
enquiries@cagroup.co.uk

Technical:  

+44 (0) 1388 830 222
technical@cagroup.co.uk

Development:  

development@cagroup.co.uk
Advice Regarding:
By submitting your enquiry below you agree to the Privacy Policy. We will endeavour to respond to your request as soon as possible. Please note, our normal business hours are 8:30am-5:00pm Mon-Thur and 8:30am-1:00pm Fri.
Thank you for contacting CA Group

Your enquiry has been submitted successfully!

Something went wrong, check the validity of your information.
Arrange a video call discussion
By submitting your enquiry below you agree to the Privacy Policy. We will endeavour to respond to your request as soon as possible. Please note, our normal business hours are 8:30am-5:00pm Mon-Thur and 8:30am-1:00pm Fri.
Thank you for contacting CA Group

Your video call request has been submitted successfully!

Oops! Something went wrong while submitting the form.

© Copyright 2024 CA Group Limited. All rights reserved.

About UsCA Building ProductsCA Roofing ServicesMaintenance, Refurbishment & Hire ServicesTechnical Specifications
SectorsResource HubSustainabilityVacanciesCase Studies
NewsTerms & ConditionsModern Slavery StatementPrivacy PolicyCookies Policy
Contact us