Cold Melt

Approved for use on

Green Roofs Inverted Roofs Protected Roofs Roof Gardens Zero Falls Buried Roofs 

For use as a protected waterproofing layer on zero fall roofsandflat roofs with limited or pedestrian access in the following specifications:

• Inverted roofs
• protected roofs, eg covered by pavers or other suitable protection, or
• green roof and roof gardens

Substrate

Concrete 

Precast concrete, concrete block timber decks and Proteus Pro-Therm Thermal Protection Board.

Durability

25 Years 

Cold Melt satisfies the requirements for a life of at least 25 years. In the opinion of the BBA, when fully protected and subjected to normal service conditions, the system will 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.

In situations where maintenance or repair to the protection layer are necessary, the durability of the membrane may be reduced. In these circumstances, the Certificate holder should be consulted.

Installation Requirements

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

Fire Safety

In the opinion of the BBA, a roof incorporating the system will be unrestricted under the national Building Regulations in the following circumstances:

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

The designation of other specifications should be confirmed by: England and Wales — test or assessment in accordance with Approved Document B, Appendix A, clause A1 Scotland — test to conform to Mandatory Standard 2.8, clause 2.8.1(1)(2) (1) Technical Handbook (Domestic). (2) Technical Handbook (Non-Domestic). Northern Ireland — test or assessment by a UKAS-accredited laboratory, BRE or an independent consultant with appropriate experience.

In the opinion of the BBA, irrigated green roofs and roof gardens will also be unrestricted under the national Building Regulations.

If allowed to dry, plants used may allow the spread of flame 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.