British flora green roofing information booklet 20pp a4

GREEN ROOF LAYERS /DUJHVW VSHFLDOLVW JURZHU VXSSOLHU RI RYHU %ULWLVK QDWLYH Terrestrial plant ZLOGĂ RZHUV PDUJLQDO DTXDWLF SODQWV DQG VHHG communities require adequate water, nutrients, drainage and air circulating around the roots to survive and this is recreated in the green roofing engineered layering system, which follows current ZLWK RYHU \HDUV H[SHULHQFH

best practice. The waterproofing membrane is one of the most important factors to consider prior to installation and its integrity must be confirmed prior to installation of green roof system by a specialist waterproofing contractor. The root barrier membrane is a protective layer preventing any damage to the BritishFlora T: 01494 718203 ŽŜƚĞŜƚĆ?

WÄ‚Ĺ?Äž water proofing from plant roots.

A drainage Grange Farm F: 01494 718989board provides water storage capacity and allows excess water to'ĆŒÄ‚ĹśĹ?Äž ZŽĂĚ drain away and the filter Í— Ĺ?ŜĨŽΛÄ?ĆŒĹ?Ć&#x;Ć?ĹšĹ‡Ĺ˝ĆŒÄ‚Í˜Ä?Ĺ˝Í˜ĆľĹŹ fleece installed above the drainage board prevents substrate from entering the /ĹśĆšĆŒĹ˝ÄšĆľÄ?Ć&#x;ŽŜ ĎŻ drainage board. Drainage outlets are also an important component of green roof systems and vegetation Ç Ç Ç Í˜Ä?ĆŒĹ?Ć&#x;Ć?ĹšĹ‡Ĺ˝ĆŒÄ‚Í˜Ä?Ĺ˝Í˜ĆľĹŹ

tĹ?ÄšĹľÄžĆŒ ŜĚ barriers composed of large pebbles will prevent vegetation growing beyond the desired areas. dĆŒÄ‚Ç‡ ^Ĺ?njĞĆ? ϰͲϹ ĆľÄ?ĹŹĹ?ĹśĹ?ŚĂžĆ?ĹšĹ?ĆŒÄž ŽžƉĂŜLJ ZÄžĹ? EĹ˝Í˜ ϰϯϳϲϲϲϾ

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ŽžƉĂŜLJ s d EĹ˝Í˜ ϳώϳ ϹϾϾϲ ϳϾ

Biodiversity elements- log and rock piles

BritishFlora ^ƚĂč͗ DĂŜĂĹ?Ĺ?ĹśĹ? Ĺ?ĆŒÄžÄ?ĆšĹ˝ĆŒ 'ĆŒÄ‚ĹšÄ‚Ĺľ ŽƾĆ?Ĺ?ĹśĆ?

Ä‚Ć?Äž ^ƚƾĚĹ?ÄžĆ? ŽŜĆ?ƾůƚĂŜÄ?LJ ^ÄžĆŒÇ€Ĺ?Ä?ÄžĆ?

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Wildflower planting tĹ?ĹŻÄšĹ‡Ĺ˝Ç ÄžĆŒ DĞĂĚŽÇ

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Localised mounding up to 200mm depth

Í— Ĺ?ĆŒÄ‚ĹšÄ‚ĹľÎ›Ä?ĆŒĹ?Ć&#x;Ć?ĹšĹ‡Ĺ˝ĆŒÄ‚Í˜Ä?Ĺ˝Í˜ĆľĹŹ

Extensive crushed brick substrate

'ĆŒÄžÄžĹś ĆŒĹ˝Ĺ˝Ä¨

Filter fleece

&Ĺ?ĞůĚ ^Ä‚ĹŻÄžĆ? DĂŜĂĹ?ÄžĆŒ EĹ?Ĺ?Ğů ^ƚĞǀĞŜĆ?ŽŜ ^Ä‚ĹŻÄžĆ? ĚžĹ?ĹśĹ?Ć?ĆšĆŒÄ‚ĆšĹ˝ĆŒ ĹŻÄ‚Ĺ?ŜĞ DĹ?ĹŻĹŻĆ?

Í— ĹśĹ?Ĺ?ĞůĆ?ƚĞǀĞŜĆ?ŽŜΛÄ?ĆŒĹ?Ć&#x;Ć?ĹšĹ‡Ĺ˝ĆŒÄ‚Í˜Ä?Ĺ˝Í˜ĆľĹŹDrainage board ,ĂžƉƚŽŜ Ĺ˝ĆľĆŒĆš DÍ— ϏϳϾϯϭ ϹϾώϰϯϳ Insulation ^ƉĞÄ?Ĺ?ÄžĆ? >Ĺ?Ć?Ćš Í— Ä‚ĹŻÄ‚Ĺ?ŜĞžĹ?ĹŻĹŻĆ?ΛÄ?ĆŒĹ?Ć&#x;Ć?ĹšĹ‡Ĺ˝ĆŒÄ‚Í˜Ä?Ĺ˝Í˜ĆľĹŹ

Root barrier membrane Waterproofing layer ^ĞĞĚ DĹ?džĞĆ?

Structural slab

dÄžÄ?ŚŜĹ?Ä?Ä‚ĹŻ DĂŜĂĹ?ÄžĆŒ ĹŻÄ‚Ĺ?ŜĞ ,Ĺ˝Ç Ä‚ĆŒÄš

Í— ĞůĂĹ?ŜĞΛÄ?ĆŒĹ?Ć&#x;Ć?ĹšĹ‡Ĺ˝ĆŒÄ‚Í˜Ä?Ĺ˝Í˜ĆľĹŹ DÍ— ϏϳϳϲϏϲϭϲϯϳϹ

Ä?ŽůŽĹ?Ĺ?Ć?ƚ͏ ŽŜĆ?ƾůƚĂŜƚ >Ĺ?ÇŒ WĹ˝Ç ÄžĹŻĹŻ

Í— ĹŻĹ?ÇŒĆ‰Ĺ˝Ç ÄžĹŻĹŻÎ›Ä?ĆŒĹ?Ć&#x;Ć?ĹšĹ‡Ĺ˝ĆŒÄ‚Í˜Ä?Ĺ˝Í˜ĆľĹŹ DÍ— Ϗϳϰϯώ ϳώϹϳϏϹ

dÄžĆŒĹľĆ? ĂŜĚ ŽŜĚĹ?Ć&#x;ŽŜĆ?

Š Spacehub Design

ϴͲϾ ϭϏͲϭϭ ϭώͲώϲ ώϳͲϯϏ ϯϭ

ĎŽĎŹĎ­ĎŽ WĆŒĹ?Ä?Äž >Ĺ?Ć?Ćš Ͳ /ĹśĆ?ÄžĆŒĆš

SUBSTRATES FOR BIODIVERSE ROOFS The substrate type and depth are the most important factor when determining what vegetation can establish ontĞůÄ?ŽžĞ ƚŽ the green roof.

Evidence has shown that substrates designed specifically for green roofing purposes than BritishFloraÍ›Ć? ĎŽĎŹĎ­ĎŽ /ĹśÄ¨Ĺ˝ĆŒĹľÄ‚Ć&#x;ŽŜ WÄ‚Ä?ĹŹÍ˜ KĆľĆŒ ĆŒÄžÇ€Ĺ?Ć?ĞĚ Ć?ƉĞÄ?Ĺ?ÄžĆ? ĹŻĹ?Ć?Ć&#x;ĹśĹ? Ĺ?Ĺś ĎŽĎŹĎ­ĎŽ Ĺ?ĹśÄ?ůƾĚĞĆ? meet industry standards (FLL Guidelines and Green Roof Code of Best Practice 2011), perform better and Ä?Ĺ˝ĹľĆ‰ĆŒÄžĹšÄžĹśĆ?Ĺ?ǀĞ Ĺ?ĹśÄ¨Ĺ˝ĆŒĹľÄ‚Ć&#x;ŽŜ ŽŜ ĞĂÄ?Ĺš ƉůĂŜƚ Ć?ƉĞÄ?Ĺ?ÄžĆ? Ć?ĆľÄ?Ĺš Ä‚Ć? Ĺ‡Ĺ˝Ç ÄžĆŒĹ?ĹśĹ? Ä?Ĺ˝ĹŻĹ˝ĆľĆŒÍ• ŚĞĹ?Ĺ?Śƚ ĂŜĚ Ĺ‡Ĺ˝Ç ÄžĆŒ have the following properties:

Ć‰ÄžĆŒĹ?Ĺ˝ÄšÍ˜ dĹšĹ?Ć? Ć?ĞĂĆ?ŽŜ Ç Äž Ä‚ĹŻĆ?Ĺ˝ Ĺ?ĹśÄ?ůƾĚĞ Ä‚ ĹśÄžÇ Ć‰ĆŒĹ?Ä?Äž ĹŻĹ?Ć?Ćš Ç Ĺ?ƚŚ Ĺ˝ĆľĆŒ Ĩƾůů ĆŒÄ‚ĹśĹ?Äž ŽĨ Ć‰ĆŒĹ˝ÄšĆľÄ?ĆšĆ?Í• ƉŽƚ ĂŜĚ ĆšĆŒÄ‚Ç‡ Ć?Ĺ?njĞĆ?͘ dĹšĹ?Ć? ĎŽĎŹĎ­ĎŽ WĆŒĹ?Ä?Äž >Ĺ?Ć?Ćš Ĺ?Ć? Ĺ?ĹśÄ?ůƾĚĞĚ Ä‚Ć? Ä‚Ĺś Ĺ?ĹśĆ?ÄžĆŒĆš ƚŽ ƚŚĹ?Ć? /ĹśÄ¨Ĺ˝ĆŒĹľÄ‚Ć&#x;ŽŜ WÄ‚Ä?ĹŹÍ˜ ƚĞÄ?ŚŜĹ?Ä?Ä‚ĹŻ Fire clay based\mineral substrate ŜŽƚĞ ĂŜĚ ĞdžƉůĂŜĂĆ&#x;ŽŜ ŽĨ Ĺ˝ĆľĆŒ ĆšĆŒÄ‚Ç‡ ĂŜĚ ƉŽƚ Ć?Ĺ?njĞĆ? Ć‰ĆŒĹ˝Ç€Ĺ?ĚĞĆ? Ä¨ĆľĆŒĆšĹšÄžĆŒ Ć‰ĆŒĹ˝ÄšĆľÄ?Ćš Ĺ?ĹśÄ¨Ĺ˝ĆŒĹľÄ‚Ć&#x;ŽŜ Ä¨Ĺ˝ĆŒ Ĺ˝ĆľĆŒ Circumneutral pH Ä?ĆľĆ?ĆšĹ˝ĹľÄžĆŒĆ?͘ /Ćš Ĺ?Ć? Ĺ˝ĆľĆŒ Ĺ?ŜƚĞŜĆ&#x;ŽŜ ƚŚĂƚ ƚŚĹ?Ć? Ĺ?ĹśÄ?ĹŻĆľĆ?Ĺ?ŽŜ Ç Ĺ?ĹŻĹŻ žĂŏĞ Ĺ˝ĆľĆŒ Ä?ĹŻĹ?ĞŜƚ͛Ć? ƚĂĆ?ĹŹ ŽĨ ƋƾŽĆ&#x;ĹśĹ? Ä¨Ĺ˝ĆŒ Lightweight Good drainage characteristics Ć‰ĆŒĹ˝ĹŠÄžÄ?ĆšĆ? ĂŜĚ ĹŠĹ˝Ä?Ć? žƾÄ?Ĺš Ć‹ĆľĹ?Ä?ĹŹÄžĆŒ ĂŜĚ ĞĂĆ?Ĺ?ÄžĆŒ ĂŜĚ Ĺ˝ĆľĆŒ Ć?Ä‚ĹŻÄžĆ? ĂŜĚ ƚĞÄ?ŚŜĹ?Ä?Ä‚ĹŻ ƚĞĂž Ä‚ĆŒÄž ĆšĹšÄžĆŒÄž ƚŽ ŚĞůƉ Porous (absorbs water) Ç Ĺ?ƚŚ ĂŜLJ Ä¨ĆľĆŒĆšĹšÄžĆŒ Ć‹ĆľÄžĆŒĹ?ÄžĆ? LJŽƾ žĂLJ ĹšÄ‚Ç€ÄžÍ˜ Low nutrient (10% organic content) Avoids compaction (large granular)

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BritishFlora ,6 FREE

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