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Platon DE25Water storage and drainage board for extensive green roofs

Product description

Platon DE25 Green Roof Tray is a studdedsheet with formed cavities and channels. Whenapplied to a green roof construction, above aroot protecting layer and below a filter fabric,the cavities are able to store water, whichpercolates through the soil from the surfacevegetation. Water rising above the level of theinterconnecting channels is distributed betweencavities. Drainage slits through the channels allowexcess water to drain through to the gap below(created by the studs), so that drainage takesplace above the root protecting layer across theflat roof. The product thereby creates both adrainage layer and a water storage layer in theconstruction.

Application

Platon DE25 Green Roof Tray is incorporated in atype of roof construction defined as an extensivegreen roof system, within the lower storagecapacity range (up to 15 litre per m²).

Installation

Lay with the studs down without fixing on topof the roof waterproofing membrane (alreadycovered by a root protection layer if necessary).Sheets may be placed quickly because they retaintheir form during transport and storage as flatsheets. Platon DE25 should be filled with waterafter installation for protection of wind suctionand overheating in summer. The green roof traymust be covered within one day. Cut if necessaryat drainage gulley or change in roof slope and layedge to edge. Cover with a filter fabric before thesubstrate covering is laid.

Storage

Sheets of Platon DE25 Green Roof Tray should bestored flat when stored over long periods andpreferably under cover.

Platon DE25Water storage and drainage board for extensivegreen roofs

Accessories

No special accessories.

Technical data

Properties Value

Material: virgin PEHD

Stud height: 22 mm

Construction height: 23 mm

Material thickness: 1,00 mm

Dimensions: 1,33 m x 2,22 m / 2,95 sqm

Quantity on pallets: 170 sheets / 501,97 sqm

Weight: 950 g/sqm

Compression strength (unfilled): 120 kPa at 15% deformation

Compression strength (filled): 1 000 kPa at 20% deformation

Storage capacity: 6,1 l/sqm

Dranaige capacity between thestuds:

1,50 l/s*m with 3% slope

Drainage capacity of slits(permeability):

0,8 l/s*sqm

Expected life time: min. 50 years

CE marking: EN 13252 as drainage layer