8/9/2019 Sheff Green Roof HAP Scoring System FINAL Feb 2010

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The scoring system is designed to achieve the best possible outcome against the Habitat Action Plan requirements.

Complete the table to establish the biodiversity score for your planned roof and use as a tool to increase its value through design.

The benchmark of 80mm of substrate, with a Score of 1 is the starting point.

Scores over 20 are rated Excellent for biodiversity, Scores over 15 are rated Good for biodiversity.

Green Roof Elements Score

Substrate (growing medium) - Score points on only one line of the following

less than 80mm depth -2

80mm average minimum depth 1

100mm average minimum depth 2

150mm average minimum depth 3

200mm average minimum depth 4

Score points on one or more lines of the following

Mosaic habitat - 3 or more substrates 1Varying substrate depth / undulations 3

Brownfield replacement materials (Screened) 1

Demolition waste/rubble (Unscreened) -2

Maximum possible substrate score 7 0

Roof area covering - Score points on only one line of the following

40% of total roof area with substrate 1

60% of total roof area with substrate 2

80% of total roof area with substrate 4

Maximum possible roof area score 4 0

Plants - Score for the main plants only

Native species (forbs) 4

3

Non-native species with recognised biodiversity value (forbs) 2

Native grasses (non-invasive) 2

Lawn (turf) 0

Sedum dominated 1

Mixed sedum and forbs 2

Roof garden intensive type 1

Sheffield Green Roof Habitat Action Plan Scoring System (Sheffield Biodiversity Action Partnership in conjunction with th

Enter your Scorebelow

Native and non-native species with recognised biodiversity value (forbs)

8/9/2019 Sheff Green Roof HAP Scoring System FINAL Feb 2010

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Maximum possible 'other' score 7 0

Your Total 0

8/9/2019 Sheff Green Roof HAP Scoring System FINAL Feb 2010

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8/9/2019 Sheff Green Roof HAP Scoring System FINAL Feb 2010

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