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IMPERDAN FP 4 MM GP

Waterproofing sheet of polymer modified bitumen (pliability -5ºC) with mineral self-protection.

Product variations:
Waterproofing
IMPERDAN FP 4.0 mm GP is a waterproofing bituminous sheet with self-protected surface of 4.0 mm. Composed of a reinforced polyester felt reinforcement, covered on both sides with polymer modified bitumen (pliability -5ºC) mastic. On the upper side of the sheet, slate in green colour is used as protective material. The anti-adhesive material used on the lower side is polyethylene film. Tested according to standard EN test methods.

Advantages & Benefits

  • High movement capability.
  • High resistance to static and dynamic piercing.
  • Helps to increase the durability of the sheet.
  • It retains its properties better over time.
  • Plastomer-modified bitumen mastic provides top performance at both high and low temperatures, plasticity and resistance to ageing, leading to increased durability of the sheet and increased safety of the waterproofing membrane.
  • Good anti-piercing protection from mechanical damage.
  • High dimensional stability.
  • High tensile strength.
  • Rot-proof.
  • Limits deformations and stresses in the waterproofing membrane.
  • Very stable in the long term.

Instruction for Use

  • Preparation of the support:
The surface of the base support must be resistant, uniform, smooth, clean, dry and free of foreign bodies. In the case of thermal insulation, the plates will be placed at joints and without separations between plates greater than 0.5 cm.
  • Upper sheet of multilayer membranes with mineral self-protection. The sheet runs in the same direction as the bottom sheet, offsetting the lap line by about half the roll. The sheet is completely welded to the lower one with a torch. The overlaps have to be welded, and will be 8-10 cm. in the longitudinal direction and 12 cm in the transverse direction. For the union of the transverse overlap at the ends of the rolls, it is necessary to previously heat the transverse edge of the lower sheet in a strip of 12 cm, eliminating or embedding the protective aggregate in the bituminous mass and then welding the end of the next piece.
  • Waterproofing of walls. Previously, a bituminous primer (Curidán, Impridán 100, Maxdán or Maxdán Caucho) will be applied. For ease of installation, it is recommended to cut the rolls into smaller, more manageable dimensions, adjusting to the width of the wall. Subsequently, the sheet will be welded to the support as indicated above.

Maintenance Recommendations

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

Notice

  • The information contained in this document and any other advice provided, are given in good faith, based on DANOSA's current knowledge and experience when products are properly stored, handled and applied, in normal situations and in accordance with the recommendations of DANOSA. The information applies only to the application (s) and the product (s) to which reference is expressly made. In case of changes in the parameters of the application, or in case of a different application, consult the DANOSA Technical Service before using the DANOSA products. The information contained herein does not exonerate the responsibility of the building agents to test the products for the application and intended use, as well as their correct application in accordance with current legal regulations. The product images used in our communications are indicative and may differ slightly in color and aesthetic appearance in relation to the final product.Orders are accepted in accordance with the terms of our current General Sales Conditions.DANOSA reserves the right to modify, without prior notice, the data reflected in this documentation.Website: www.danosa.com E-mail: info@danosa.com Telephone: +34 949 88 82 10

Presentation

  • Length (cm): 1000
  • Width (cm): 100
  • Thickness (mm): 4.0
  • Product code: 141735
IMPERDAN FP 4 MM GP

Technical Data

Concept Value Standard
External fire behaviour Broof(t1) UNE-EN 1187;UNE-EN 13501-5
Durability flexibility +5 ± 5 -
Creep durability (ºC) 120 ±10 UN-EN 1110
Elongation at break longitudinal (%) 20 ±15 UNE-EN 12311-1
Elongation at transverse break (%) 20 ±15 UNE-EN 12311-1
Watertightness at 10 kPa (Type A) Pasa UNE-EN 1928
Water vapour resistance factor (μ) 20.000 UNE-EN 1931
Low temperature flexibility (ºC) <-5 UNE-EN 1109
Reaction to fire E UNE-EN 11925-2; UNE-EN 13501-1
Resistance to static loading (kg) >15 UNE-EN 12730
Resistance to root penetration No Pasa EN 13984
Longitudinal tensile strength (N / 5cm) 700 ± 200 UNE-EN 12311-1
Transverse tensile strength (N / 5cm) 450 ± 150 UNE-EN 12311-1
Longitudinal resistance to tearing (nail shank) (N) NPD UNE-EN 12310-1
Transversal resistance to tearing (nail shank) (N) NPD UNE-EN 12310-1
Resistance to impact, A (mm) >1000 UNE-EN 12691
Joint Strength: Welding Shear 450 ± 150 UNE-EN 12317-1
Hazardous substances NPD -

Addtitional Technical Data

Concept Value Standard
Adhesion of granules (%) <30 UNE-EN 12039
Dimensional stability at elevated temperatures (longitudinal) (%) <0.6 UNE-EN 1107-1
Dimensional stability at high temperatures (transversal) (%) <0.6 UNE-EN 1107-1
Creep resistance at high temperatures (ºC) >130 UN-EN 1110

Standards and Certification

  • In accordance with the UNE-EN 13707 standard ‘Flexible sheets for waterproofing - Reinforced bitumen sheets for roof waterproofing - Definitions and characteristics’.
  • In accordance with the UNE-EN 13969 standard for ‘Flexible sheets for waterproofing - Bitumen damp proof sheets including bitumen basement tanking sheets - Definitions and characteristics’.

Environmental Information

Concept Value Standard
Post-consumer recycled content (%) 35 -
Manufactured in Fontanar - Guadalajara (España) -

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