POLYDAN PRO NOX 50/GP.

About this product

High quality bituminous SBS modified capsheet reinforced with a heavy non-woven polyester felt.

The upper surface is finished with a white solar reflective mineral chipping, coated with a special photocatalytic treatment.

The underside has a quick-melt thermofusible film.

Designed for torch-applied applications and Safe2Torch details using hot-air welding.

Refurbishment of adhered, mechanical fixed or loose laid old bituminous membranes.

Air purification systems. Green technoly to get rid of NOx particles.

Photocatalytic purification of NOx gases > 8% (Class 3).

Substrate should be dry and clean from grease, dirt, debris or any other contaminants.

Where applicable, prime surface with CURIDAN or BITUMEN PRIMER+ in accordance with DANOSA instructions and allow to dry.

For field applications:

The membrane should be laid along the same direction as the underlay membrane, offset by a minimum of 300mm to ensure sufficient staggering of laps between layers.

Roll the membrane into position, allowing for 80mm side overlaps and100mm head overlaps and cut to length. All overlaps and cross joints should be staggered by a minimum of 300mm. Overlaps and cross joint.

Using a length of 100mm ø pipe (cut fractionally short of roll width) as an insert tube, roll back the membrane for a portion of the length (approximately 50%).

Heat activate the membrane by torching in a vee area between the roll and substrate.

Roll can be pushed forward by foot or by other suitable equipment. Apply downwards pressure when moving the roll to extrude a molten bead of bitumen from edges.

For detail applications

The membrane must be installed a minimum of 150mm above the finished surface of the system.

Place the membrane into position, allowing for 80mm side overlaps and100mm head overlaps and cut to length ensuring all overlaps and cross joints are staggered by a minimum of 300mm.

Heat activate the membrane by torching between the membrane and substrate.

Apply pressure and consolidate the bond to the substrate, ensuring a molten bead of bitumen is extruded from the edges.

Where falls apply, membrane rolls should be rolled up the slope so that water drains over and not into membrane overlaps.

In case of new construction and renovation, possible chemical incompatibilities with APP plastomer-modified bitumen sheets shall be taken into account.

If it is necessary to adhere to metallic or slightly porous elements, a bituminous primer (IMPRIDAN 100) shall be applied to the entire surface to be welded beforehand.

The design and installation of the roof structure and finishes shall be in accordance with the falls prescribed in BS 6229. Ponding of water on the surface of the waterproofing is to be avoided through effective design of roof falls and drainage systems. Throughout the life of the roof, periodic maintenance inspections should be conducted in line with the manufacturer's recommendations.

This product may form part of a waterproofing system, so all the documents referred to in the Danosa Solutions Manual must be taken into account, as well as all the regulations and legislation that must be complied with in this respect.

Self-protected sheets finished in light colours perform better thermally.

Not suitable as cap sheet on green roofs; use GARDEN variant.

Possible incompatibility between thermal insulation and waterproofing shall be checked.

Special attention must be paid to the execution of the singular points, such as parapets (meetings with vertical and emergent elements), drains, expansion joints, etc.

Polyurethane foam shall not be sprayed directly on top of the waterproofing without the use of a suitable separating layer (geotextiles, mortar layers, polyethylene film, etc).

If expansion that could affect the sheet is expected, a geotextile separating layer (DANOFELT PY 200) shall be used between the sheet and the extruded polystyrene insulation panels, so that each product expands independently.

It is possible that over time, due to external agents, the photocatalytic feature of the membrane may diminish.

Please refer to DANOSA UK Technical Statement ‘Flat Roof Waterproofing – Cleaning and Maintenance Recommendations’.

Before moving the pallet, check the condition of the shrink-wrap and reinforce if necessary.

The product must be stored in a dry place protected from rain, sun, heat and low temperatures.

The product must be stored in an upright position.

Pallets shall not be stacked on top of each other.