ESTERDAN 50/GP POL GREEN GARDEN.

About this product

Bituminous APP modified capsheet reinforced with a non-woven polyester felt. Includes root-resistant additive for living roof specifications.

The upper surface is finished with grey-green mineral chippings.

The underside has a quick-melt thermofusible film.

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

As it has an anti-root treatment, this sheet can be used as a top layer in double-layer membranes with heavy bonded protection (PA-8 membrane according to UNE 104-402/96 standard) replacing the plasticised sheet, in those cases in which the roof is expected to have different uses (pedestrians, garden, vehicles, service galleries, etc).

Multilayer membrane top sheet with mineral self-protection for waterproofing intensive and extensive green roofs.

Adheredself-protected single-layer membrane for waterproofing intensive and extensive green roofs.

Tanking membrane.

Good performance in nailed systems.

Suitable for zero fall roofs (see related certificates).

The membrane, made of a bitumen mastic modified with plastomeric polymers, provides superior performance in terms of reaction at high and low temperatures, elasticity and resistance to ageing, which leads to greater durability of the sheet and greater safety of the waterproofing membrane.

Limits deformations and stresses in the waterproofing membrane.

Has good piercing protection from possible mechanical damage, derived from the occasional pedestrian traffic typical of flat roofs.

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 will 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 of walls. The rolls are placed in a vertical position. The adhesion of the film to the substrate is done with a blowtorch. A bituminous primer (Curidán, Impridán 100, Maxdán or Maxdán Caucho) is applied beforehand. The overlaps are to be welded, and shall be 8±1 cm in the longitudinal direction and 10±1 cm in the transversal 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 welding the end of the following piece. For easier installation, it is recommended to cut the rolls into smaller, more manageable dimensions.

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), no primer is required. The overlaps must 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 of walls. First apply a bituminous primer (Curidán, Impridán 100, Maxdán or Maxdán Caucho). For ease of installation, it is recommended to cut the rolls into smaller, more manageable dimensions, adjusting them to the width of the wall.

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.

In the case of large trees and/or large root tissue, the membrane shall be protected (horizontal section and junctions with vertical walls) with a layer of reinforced concrete.

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.

Sheets made of plastomeric bitumen require more blowtorch input than sheets made of SBS elastomeric bitumen in order to work properly. It is important to take this aspect into consideration when welding the sheets to the substrate, when welding the overlaps of the sheets and when welding the sheets to each other.

There is no chemical incompatibility between the Danosa range of SBS elastomeric bitumen and APP plastomeric bitumen membranes.

The planting of palms, palm trees, cypresses and bamboos is not recommended.

For any questions about prohibited and/or non-recommended plants, please consult our Technical Department.

Possible incompatibility between thermal insulation and waterproofing shall be checked.

A separating layer (DANOFELT or DANODREN) shall be laid before laying the heavy protection (paving, gravel, topsoil, etc).

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.

This product should not be installed when the temperature is below -5ºC.

This product is not toxic or flammable.

Pallets shall not be stacked on top of each other.

Danosa recommends consulting the safety data sheet for this product, which is permanently available at www.danosa.com, Knowlegde Portal, or it can be requested from our Technical Department.

In all cases, the Occupational Safety and Hygiene standards, as well as the standards of good construction practice, must be taken into account.