Street Ash Nursery, Combe St. Nicholas, Chard, Somerset, TA20 3HZ, UK
+44 (0) 3335 771 500
enquiries@blackdown.co.uk

Semi-Intensive Wildflower Green Roof System

SPECIFICATION DRIVERS

Semi-intensive roofs have a great aesthetic appeal. Wildflower or meadow type roofs can support a wider range of plants; grasses, wildflowers and herbs due to the greater depth of substrate.

MAINTENACE

Semi-intensive green roofs are low maintenance. Certain procedures are recommended to ensure the long-term success of the plants.

Blackdown Greenroofs Semi Intensive Build Up
PLANTING & SPECIES

A wide range of grasses, herbs and wildflowers are typically included within the mix.

 

BUILD UP HEIGHT & WEIGHT

Typically, this will be a drainage layer and 100-170mm of semi-intensive substrate and the plant material that has been chosen i.e. turf, plug or seed. Weight approx. 150- 220kg per sqm.

Further Detailed Information

In order to help make your selection of our green roof system as simple as possible you will find all the relevant documentation needed for your specification and designs below.

Blackdown Greenroofs download button

Key Features

Semi-intensive roofs have a great aesthetic appeal.

Wildflower or meadow type roofs can support a wider range of plants; grasses, wildflowers, herbs etc due to the greater depth of substrate.

The planting can be offered as turf, plug or seed. Semi-intensive roofs are not designed to be heavily trafficked and can be installed on flat to shallow pitched roofs.

Blackdown Greenroofs sem-intensive wildflower
Blackdown Greenroofs Wildflower

Design, Planting and Waterproofing

Typically, this will be a drainage layer and 100-170mm of semi-intensive substrate and the plant material that has been chosen i.e. turf, plug or seed. Weight Approx. 150- 220kg per sqm.

A wide range of grasses, herbs and wildflowers are typically included within the mix.

Waterproofing options include Alumasc's Derbigum and Euroroof Mastergold membranes, Hydrotech structural waterproofing and standing seam.

Key Specification Files

Download key specification documents for each system build up below; these include product datasheets, CAD files and NBS documents.

Semi-Intensive Wildflower Seed - 40mm Drainage Layer - Warm Roof
Semi-Intensive Wildflower Seed - 40mm Drainage Layer - Inverted Roof
Blackdown Greenroofs nbs document
Blackdown Greenroofs Maintenance

Installation and Maintenance

Blackdown green roofs can be installed by the Blackdown in-house Contracts Division or by Alumasc's nationwide network of Registered Contractors

Semi-intensive green roofs are low maintenance. Once established they will continue to develop to create a self-sustaining plant community on the roof that will also provide habitat for invertebrates and bird species. Certain procedures are recommended to ensure the long-term success of the plants and it is important to ensure that the timing of these maintenance tasks is synchronised with the natural cycle of plant species on the roof.

Temporary irrigation is required for a period of 6-8 weeks until the plant material is established, once it has reached this point no additional irrigation should be required.