Danosa Esterdan Plus 50/GP Elast | 1m x 8m Black Mineral Felt

The Danosa Esterdan Plus 50/GP Elast is a high-quality, SBS elastomeric capping sheet with a weight of 5 kg/m². This torch-applied roofing felt is used in conjunction with Danosa Esterdan 30/P Elast and Recticel Powerdeck U Insulation Boards for comprehensive roofing solutions.

Overview: 

This bituminous SBS-modified cap sheet is reinforced with non-woven polyester felt, ensuring durability and strength. The upper surface is finished with mineral chippings for added protection; the underside features a quick-melt thermofusible film, making it ideal for torch-applied applications and Safe2Torch details using hot air.

Applications:

• Pitched Roofs - Perfect for waterproofing under tiles on pitched roofs, providing significant thickness and mechanical resistance.
• Multi-Layer Roof Systems -  Acts as a dependable cap sheet with mineral self-protection in multi-layer roof waterproofing systems.
• Single-Layer Systems - Suitable as a standalone waterproofing membrane in single-layer systems.

Compatibility:

• Old Bitumen Membranes -  Can be applied over existing bitumen membranes for refurbishment projects.
• Thermal Insulation Products - Compatible with a variety of thermal insulation materials.
• Concrete Substrates - Suitable for application on concrete surfaces.
• Mortar Substrates - Can be applied over mortar substrates.

This product is an excellent choice for robust and long-lasting waterproofing solutions in various applications, ensuring high performance and durability.

Important details about this product:

• Length: 8m
• Width: 1m
• Weight: 5 kg/m²
• Thickness: 3.5mm (Overlap)
• Colour: Black

Advantages & Benefits

• High Piercing Resistance – Exceptional resistance to both static and dynamic piercing ensures robust protection.
• Self-Healing and Rot-Proof – Features self-healing properties and is resistant to rot, ensuring long-lasting performance.
• UV Resistance – The mineral finish provides excellent protection against ultraviolet rays.
• High Tensile Strength – Delivers strong tensile strength and significant elongation at break, ensuring durability and flexibility.
• Tear Resistance – High resistance to tearing enhances the longevity and durability of the membrane.
• Total Impermeability – Completely impervious to water and water vapour, ensuring reliable waterproofing.
• Long-Term Stability – Maintains its performance and integrity over extended periods.
• Adaptability – Easily adapts to any type of geometry, providing versatile application options.

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 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.

Do you offer Free Delivery?

Yes! On most insulation orders over £400 excluding VAT, we can offer free delivery*. 

Delivery depends on stock availability and location. If stock is not available at your local branch and must be delivered from another branch, this may affect lead time or delivery charges. In this case, one of our advisors will contact you to confirm any changes. 

You can also send your enquiry via Contact Page or WhatsApp, and we will calculate the costs for you. We always aim to have your order travel the shortest distance possible to ensure free or the most economical delivery option. 

Orders below £400 excluding VAT are usually subject to a delivery fee of £50 excluding VAT. 

*Orders into central London (inside the North Circular and South Circular) will be charged on orders up to £1,000 + VAT due to increased shipping costs and congestion charges. Orders must also be above £350 + VAT to be processed.

Where do you deliver to?

We can deliver to 95% of the UK, using our branches across England, Wales, and Scotland. To check if you are in our delivery area, see the map or your postcode. 

London postcodes: BR, CR, DA, E, EC, EN, HA, IG, KT, N, NW, RM, SE, SM, SW, TW, UB, W, WC, WD. 

Other postcodes: AL, B, BA*, BB, BD, BH*, BN, BS, CA, CB, CM, CO, CT, CV, CW, DA, DD*, DE, DG*, DH, DL, DN, DT*, DY, EH*, EX*, FK*, FY, G, GL*, GU, HD, HG, HP, HU, HX, IP, KA*, KY*, L, LA, LE, LL, LN, LS, LU, M, ME, MK, ML, NE, NG, NN, NR, OL, OX*, PA*, PE*, PH*, PL*, PO*, RG, RH, RM, S, SG, SK, SL, SN*, SO, SP*, SR, SS, ST, SY, TA*, TD*, TF, TN, TQ*, TS, WA, WF, WN, WR, WS, WV, YO. 

Limited areas (PO – Mainland only; BA, BH, DD, DG, DT, EX,  EH, FK, GL, KA, KY, OX, PA, PE, PH, PL, SN, SP, TA, TD, TQ & PL) may have restricted delivery coverage depending on distance from the branch and order size.

Where will you deliver my order to?

All deliveries are kerbside only. It is your responsibility to move items from the kerb onto your property. The courier decides where the order is left, so please ensure there is ample space to offload.

Delivery access and site restrictions

These items are typically delivered on large 18T or 26T rigid lorries, approximately 10–12 meters long, 4 meters high, 2.6 meters wide, carrying 12–14 pallets.

Please inform us of any access restrictions or site issues in advance; failure to do so may result in extra delivery charges.

When do you dispatch orders?

If your order is placed before 12:00 PM, we aim to process and dispatch it on our lorries the next working day. Occasionally, lorries may be full, or stock may need to be brought in from another branch, which can extend delivery up to 10 working days. Some areas are subject to set delivery days due to distance from the local branch.

Please ensure to leave a mobile number so that we can contact you with your delivery date once we have received confirmation from the local branch. This also allows ourselves or the delivery driver to contact you if there are any issues with your delivery.

Why do we need your contact number?

It is essential to provide a mobile number so we or the delivery driver can contact you if there are any issues. For orders of this nature, we may contact you after ordering online to discuss delivery options, site restrictions, or offloading requirements.

How much will my delivery cost?

For orders over £400 excluding VAT, we can offer free delivery*. 

Delivery costs vary depending on the product and delivery location. When you add items to your basket and proceed to checkout, the delivery price will be displayed. We keep delivery costs as low as possible and only pass on the rates charged by our delivery partners.

How long will my delivery take?

Each product page shows the usual lead time below the “Add to Basket” button. These times are a guide only, and we aim to deliver your items as quickly as possible.