VerdiRoof – a complete Green Roofing System

green roof 2
verdi logo

VerdiRoof – a complete Green Roofing System in one delivery
that’s accessible, affordable and desirable.

What is VerdiRoof?

  • VerdiRoof is a complete Built-Up Green Roofing System in one delivery
  • VerdiRoof has enhanced green credentials
  • It’s exclusive to SIG Roofing

How is VerdiRoof supplied?

  • 10m2 of VerdiRoof per pallet
  • Up to 250m2 can be delivered in one load
  • No waiting for individual components

What are the choices of VerdiRoof covering?


The Verdico sedum blanket is 25 mm thick with 10 species per every 30m2 and offers minimum 85% coverage for a complete green roof on the day of installation.


VerdiRoof plug plants and native wild flowers are installed 15/20 per m2 for 10% plant coverage at installation which is ideal for specific biodiverse or unique applications.


VerdiRoof seed system comprises roof tolerant wildflowers, grasses and sedum cuttings which germinate and grow over 2/3 growing seasons. Good for large roofs/restricted budgets.

Where should I use VerdiRoof?

  • Suitable for or warm/cold/inverted roof build up
  • Schools
  • Offices
  • Healthcare
  • Military installations
  • Sports facilities
  • Flats and condominium roof terraces
  • Domestic properties


What’s VerdiRoof’s customer appeal?

  • Enhanced green credentials
  • UK sourced growing medium made from
  • Pumice, bark compost, and unique carbon capture pellet
  • Each m2 has CO2 footprint of minus 7kg
  • Source: Tested by University of Greenwich


Why should we use Green Roofing?

For the building

  • Substantially increases membrane life expectancy
  • Protects it from UV climatic degradation
  • Improves energy efficiency in warm roofs
  • Enhances sound insulation by up to 8dB (decibels)
  • Makes good use of space – optimises ‘structural footprint’


To assist urban drainage

  • Reduces rainwater run-off rate
  • Absorbs 50% of rainfall
  • Assists storm attenuation
  • Reduces pressure on drains
  • Useful tool in a sustainable drainage strategy (SUDs)


To counter urban heat-island effect

  • Green roofing helps cool buildings
  • Reduces heat build-up in
    urban areas
  • Air conditioning can be reduced
    or avoided
  • Infra-red photography shows green roof is much cooler than conventional sections of roof


To support SIG customers whatever the project, SIG Design & Technology has put together an 8-step guide to identify the challenges and ensure that a roof’s design meets a building’s requirements. Called “#Perfect Roof”, the eight steps follow the process from product selection and design expertise through to full guarantees and planned maintenance. This know-how is just part of the service that is provided absolutely free to customers and includes green roofing.

eight steps to guide

To find out more about green roofing knowledge, two blogs, Green Roof Systems: An Overview and How much will a green roof weigh? are available on line at

 Contact: 01509 505714