Widopan FD 2K Roof Waterproofing System

Approved for use on

Balconies, Terraces & Walkways Blue Roofs Brown Roofs Flat Roofs Green Roofs Inverted Roofs Pitched Roofs Podium Decks Roof Gardens 

for use as a waterproofing layer in:

• warm or cold exposed roofs on flat, zero-pitch roofs and pitched roofs with limited access
• inverted roof specifications using aggregate ballast on flat roofs, including zero-pitch roofs with limited access
• protected inverted roof specifications using pavers or other suitable protection on flat roofs, including zero-pitch roofs with limited or pedestrian access
• green roof (extensive) specifications on flat roofs, including zero-pitch roofs with limited or pedestrian access, or pitched roofs with limited access
• roof garden (intensive) specifications on flat roofs, including zero-pitch roofs with limited or pedestrian access
• brown roof specifications
• blue roof specifications
• podium decks
• balconies with pedestrian access
• walkways

Substrate

Concrete Insulation Boards Metal Mineral Wool Insulation Plastic PUR or PIR Insulation Reinforced Bituminous Membranes Timber 

The system is suitable for use on the following substrates:

• concrete
• plastic
• wood
• metal
• reinforced bitumen membranes (including mineral-surfaced)
• PUR or PIR insulation boards
• mineral wool insulation batts

Durability

35 Years 

Accelerated weathering test data confirm that a satisfactory retention of properties is achieved. All available evidence indicates that the system should achieve an initial life expectancy of at least 35 years. When fully protected and subject to normal service conditions in an inverted roof specification with an open covering (eg aggregate pavers), the system can provide an effective barrier to the transmission of liquid water and water vapour for the design life of the roof in which it is incorporated.

However, in situations where maintenance or repair of any of the components in the roof structure are necessary (eg protection layer, insulation), the durability of the membrane may be reduced. In these circumstances the Certificate holder should be consulted.

An estimation cannot be given for the life of green roof and roof garden specifications owing to the nature of use; however, under normal circumstances, it should be significantly greater than for open coverings.

Installation Requirements

The system should only be installed by contractors who have been trained and approved by the Certificate holder.

Puncture Resistance

P1 - non accessible

Least compressible (eg concrete)

P4 - roof gardens, inverted roofs and green roofs)

Most Compressible Substrate (eg insulation)

Fire Safety

When tested to DD CEN/TS 1187 : 2012, Test 4, and classified to EN 13501-5 : 2016, the construction given in Table 1 of the BBA Certificate achieved BROOF(t4) for slopes below 10°.

Test data for the construction given in Table 2 of the BBA Certificate, when classified to EN 13501-5 : 2016, achieved BROOF(t4) for slopes below 10°.

On the basis of data assessed, the construction listed in Table 1 of the BBA Certificate will be unrestricted by the documents supporting the national Building Regulations with respect to proximity to a relevant boundary.

A roof incorporating the systems will be similarly unrestricted under the national Building Regulations with respect to proximity to a relevant boundary in the following circumstances:

• when protected by an inorganic covering (eg gravel or paving slabs) listed in the Annex of Commission Decision
  2000/553/EC
• a roof garden covered with a drainage layer of gravel 100 mm thick and a soil layer 300 mm thick
• irrigated roof gardens and green roofs

The classification and permissible areas of use of other specifications must be confirmed by reference to the requirements of the documents supporting the national Building Regulations.

If allowed to dry, plants used in a roof garden may allow flame spread across the roof. This must be taken into consideration when selecting suitable plants for the roof. Appropriate planting irrigation and/or protection must be applied to ensure the overall fire-rating of the roof is not compromised.