ESTERDAN PLUS 50/GP ELAST

About this product

Bituminous SBS modified capsheet reinforced with a non-woven polyester felt.

The upper surface is finished with mineral chippings.

The underside has a quick-melt thermofusible film.

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

Waterproofing under tiles on pitched roofs, both for its thickness and its mechanical resistance.

Capsheet in multi-layer roof waterproofing systems with mineral self-protection.

High resistance to static and dynamic piercing.

Self-healing and rot-proof.

The mineral finish gives the membrane UV resistance.

Allows for adaptation to any type of geometry.

Old bitumen membranes.

Preparation of the substrate:

-The surface of the base substrate shall be resistant, uniform, smooth, clean, dry and free of foreign bodies. In the case of thermal insulation, the boards shall be laid in a grid and with no gaps between boards greater than 0.5 cm.

Top layer of multi-layer membranes with mineral self-protection. The sheet is laid in the same direction as the bottom sheet, with the overlap line offset by approximately half of the roll. The sheet is fully welded to the bottom sheet with a blowtorch. The overlaps are to be welded and are 8±1 cm in the longitudinal direction and 10±1 cm in the transverse direction. To join the transverse overlap at the ends of the rolls, it is necessary to heat the transverse edge of the lower sheet in a 10 cm strip, eliminating or embedding the protection aggregate in the bituminous mass and then weld the end of the following piece.

Self-protected single-layer membrane, adhered system. The adhesion of the membrane to the substrate is done with a blowtorch. In the case of mortar or concrete substrates, a bituminous primer (Curidán, Impridán 100, Maxdán or Maxdán Caucho) must be applied beforehand. If the substrate is a weldable thermal insulation board, i.e. asphalt-finished (Rocdán A or Rocdán PIR VA), the primer is not necessary. The overlaps are to be welded and shall be 8±1 cm in the longitudinal direction and 10±1 cm in the transverse direction. To join the transversal overlap at the ends of the rolls, it is necessary to previously heat the transversal edge of the lower sheet in a strip of 10 cm, eliminating or embedding the protection aggregate in the bituminous mass and then weld the end of the following piece.

Waterproofing under tiles on pitched roofs. Proceed as described above, but mechanically fasten the 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.

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.