Danosa Esterdan Plus 40 GP Elast Black Torch On Mineral Cap Sheet 10m X 1m

£53.92 £64.70

SKU: 141161 More from this category:

ESTERDAN PLUS 40/GP ELAST. is a waterproofing bituminous sheet with self-protected surface of 4.0 kg/m². Composed of a reinforced polyester felt reinforcement, covered on both sides with SBS modified bitumen mastic. On the upper side of the sheet, slate in grey (black) colour is used as protective material. The anti-adhesive material used on the lower side is polyethylene film. High static and dynamic piercing resistance.
Self-healing and Rot-proof.
The mineral finish gives the sheet UV resistance.
High tensile strength and high elongation at break.
High resistance to tearing.
Total impermeability to water and water vapour.
Very stable in the long term.
Allows for adaptation to any type of geometry. Anti-capillary barrier in walls.
Multilayer membrane top sheet for roof waterproofing with mineral self-protection.
Top sheet in two-layer membranes for waterproofing of roofs with heavy bonded, unbonded or floating protection. 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 without gaps of more than 0.5 cm between boards.
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 will be 8 cm in both the longitudinal and transverse directions. 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 strip of 8-10 cm beforehand, removing or embedding the protective aggregate in the bituminous mass and then welding the end of the next piece.
Waterproofing under tiles on pitched roofs. The adhesion of the sheet 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 cm in both longitudinal and transverse directions. 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 8-10 cm, eliminating or embedding the protection aggregate in the bituminous mass and then weld the end of the following piece. The mechanical fastening is carried out at the overlaps. In case of new construction and renovation, possible chemical incompatibilities with APP plastomer-modified bitumen sheets shall be taken into account.
In case of renovation, chemical incompatibilities with old waterproofing consisting of flexible PVC sheets, modified tar-based mastics or any other, shall be taken into account, and it may be necessary to remove them completely or to use suitable separating layers (geotextiles, mortar layer, polyethylene film, etc).
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.
On exposed self-protected roofs, occasional water retention that could lead to sediment accumulation and damage to the waterproofing membrane shall be avoided.
This product is 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.
Self-protected sheets in coloured mineral or ceramic granules may have different colour shades depending on the different production batches.
Self-protected sheets are exposed sheets, so care must be taken when installing them.
NOTE: For more information on the Danosa systems in which this product is used, please see the document “Waterproofing Solutions”.
There is no chemical incompatibility between the Danosa range of oxyasphalt, SBS elastomeric bitumen and plastomeric bitumen sheets.
Do not use as a top sheet on green roofs.
Do not use as a single-ply membrane, except for waterproofing under tiles on pitched roofs.
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.


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