Green Roofs

Southern Projects delivers comprehensive green roof solutions that transform conventional roof spaces into vibrant, sustainable living systems. Our expert roofing teams integrate green infrastructure with proven waterproofing technologies to create durable, high-performance installations.

Our green roof service combines our extensive flat roofing expertise with sustainable building envelope solutions. We work closely with clients to design systems that meet specific environmental objectives whilst ensuring long-term structural integrity and waterproof performance.

Extensive green roofs provide lightweight, low-maintenance solutions ideal for large commercial and industrial buildings:

• Shallow growing medium (50-150mm depth)
• Drought-tolerant sedum and wildflower plantings
• Minimal structural loading requirements
• Self-sustaining plant communities requiring minimal irrigation
• Compatible with existing roof structures

Intensive systems create fully accessible roof gardens and recreational spaces:

• Deeper growing medium (150-1000mm) supporting diverse plant species
• Shrubs, perennials and small trees for enhanced biodiversity
• Integrated irrigation and drainage systems
• Accessible pathways and recreational areas
• Enhanced structural support and waterproofing requirements

Our green roof installations utilise proven waterproofing systems from our flat roofing expertise, enhanced with specialist root-resistant technologies:

• Built-up torch-applied systems with root-resistant membranes
• Single-ply waterproofing with integrated root barriers
• Liquid-applied coatings suitable for complex roof geometries
• Multi-layer protection systems with redundant waterproofing

Effective water management ensures optimal plant health whilst protecting the building structure:

• Engineered drainage layers preventing waterlogging
• Overflow systems for extreme weather events
• Water retention systems maximising irrigation efficiency
• Sustainable urban drainage (SuDS) integration

Green roofs deliver measurable environmental improvements that enhance building performance and occupant wellbeing:

• Improved thermal insulation reducing heating and cooling loads
• Natural cooling through evapotranspiration
• Reduced urban heat island effect
• Enhanced building envelope U-values
• Lower energy consumption and operational costs

• Wildlife corridors supporting urban biodiversity
• Pollinator-friendly plant species selection
• Habitat creation for birds and beneficial insects
• Integration with broader green infrastructure networks

• Reduced peak stormwater runoff rates
• Natural water filtration improving discharge quality
• Reduced burden on urban drainage infrastructure
• Compliance with sustainable drainage requirements

Our integrated approach combines roofing expertise with scaffolding capabilities for safe, efficient project delivery:

• Comprehensive structural load calculations
• Existing roof condition surveys and assessments
• Bespoke design solutions for specific site conditions
• Integration with existing building services

Utilising our in-house scaffolding capabilities:

• TG20:21 compliant scaffold systems for safe roof access
• Engineered scaffolds for complex roof geometries
• Edge protection and fall prevention systems
• Material handling solutions for growing medium delivery

• Existing roof preparation and waterproofing upgrades
• Root barrier and drainage layer installation
• Growing medium delivery and placement
• Plant establishment and initial maintenance
• System commissioning and performance verification

Our maintenance programmes ensure sustained green roof performance throughout the system lifecycle:

• Regular plant health assessments and replacements
• Irrigation system maintenance and optimisation
• Drainage inspection and clearance programmes
• Waterproofing integrity monitoring
• Seasonal plant care and pruning

• Growth medium depth and composition monitoring
• Plant establishment success rates
• Stormwater management performance assessment
• Energy performance impact measurement

Green roofs integrate seamlessly with our comprehensive M&E capabilities:

• Automated irrigation systems with smart controls
• Building Management System (BMS) integration
• Weather station connectivity for optimised watering
• Energy monitoring systems measuring thermal performance
• Remote monitoring capabilities for system optimisation

All green roof installations meet relevant industry standards and building regulations:

• Building Regulations compliance for structural loading
• Waterproofing system guarantees and warranties
• Plant establishment guarantees
• Health and safety compliance with in-house NEBOSH consultation
• Environmental performance documentation and certification