Seeded extensive green roof

When to specify...

Seeding an extensive green roof can be an economical and practical method of greening very large areas. The Bauder Flora Seed Mixes are specifically designed for sowing at roof level they contain tackifier and fertiliser with the seed to insure the seed is stuck to the substrate and not blown of washed off the roof, this insures the highest germination rates. To meet particular planting requirements on Biodiverse roofs seeding is often combined with plug planting to get an exact species mix.

Key features

•  All 5 seed mixes are sourced using British native species seed stock
•  RHS (perfect for pollinators) compliant
•  Buglife approved
•  Low system weight tipycally circa 140kg/m2
•  Height of system 150-200mm
•  13.5 Ltr of water retention within drainage board


•  Lower cost than using pre-grown blanket or plugs
•  Improve SUDs capacity of the roof
•  Fully GRO and FLL compliant
•  Different mixes to suit a range of environments
•  Assists in maximising the building's potential to meet a BAP
•  Vegetation can be chosen to fulfill BREEAM requirements

Approvals, certification and guarantee

•  Guaranteed waterproofing and green roof components
•  Substrate, filtration layers and drainage boards comply with FLL guidelines

Environmental credentials

•  Substrates include a high proportion of recycled crushed brick and aggregate
•  Protection, filtration and isolation layers manufactured from recycled materials
•  DSE40 is manufactured from recycled polyethylene

Installation and maintenance

The quality and experience of the installing operative is paramount to ensuring a successful project. Bauder Approved Contractors are the only people fully trained and certified to install our products. They provide the necessary experience that our exceptional guarantee demands.