Sika provides flat roofing systems for new build construction projects across commercial, industrial and residential buildings. Designed to withstand demanding environmental conditions including wind, rain, snow and hail, our flat roof systems form part of the building envelope to help protect long-term building performance.
Working closely with architects, specifiers and roofing contractors, Sika provides project specific flat roof specifications tailored to the requirements of each building and its intended use. Our technical team supports projects from early-stage design through to installation and completion, helping ensure roofing systems are designed in line with relevant standards and project criteria.
Early Design & Specification Support
Engaging with Sika early in the design process helps ensure the most appropriate roofing system is specified for your project. Our technical experts can provide guidance from the initial design brief and concept drawings, or once project requirements have been established, developing a specification supported by the necessary technical documentation.
Our Technical Advisors provide nationwide support throughout every stage of the project, from design review and technical calculations through to specification preparation, site inspections and project completion.
Our support includes:
- Project specific flat roof specifications
- Roof design reviews and technical guidance
- Wind uplift calculations
- Drainage strategy considerations
- Fire classification advice
- Modern roofing design options, including green roofs, blue roofs and solar roof systems
- BIM objects, BREEAM documentation and compliance support
Flat Roof Design Considerations
Designing a new build flat roof requires careful consideration of several technical and performance factors. Sika can provide technical guidance throughout the specification process, helping ensure the selected roofing system meets project-specific criteria, regulatory requirements and long-term performance expectations.
Key design considerations include:
- Roof size, layout, rainfall intensity and drainage strategy
- Wind uplift based on building location and orientation
- Fire classification requirements (e.g. BroofT4), supported by certified test data
- Thermal performance, U-value calculations and condensation risk analysis
- Roof usage, including accessible roofs, balconies and terraces
- Waterproofing system performance, durability and expected service life
- Environmental performance
Our Technical Advisors can provide design guidance, technical calculations and supporting documentation throughout the specification process, including BIM objects and BREEAM documentation where required.
Approved Installers & On-Site Support
Sika flat roofing systems are installed exclusively by Approved Installers who have received training in Sika roofing systems and installation standards. This helps ensure consistent installation quality and long-term system performance.
Throughout the installation phase, Sika’s technical experts provide ongoing site support and inspections to assist both specifiers and contractors. Our team works closely with Approved Installers to help ensure roofing membranes and waterproofing systems are installed in accordance with project specifications and manufacturer guidance.
Flat Roof Membranes
Roof Design Solutions
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