Product Data Sheet Show all documents

SikaShield® P49 T Fidia 3 mm

Plastomeric bituminous membrane with a double reinforcement and flexible at -10 °C                   

(Formerly Index Fidia Plain 3mm)

SikaShield® P49 T Fidia 3 mm is an APP modified bituminous waterproofing membrane with a thickness of 3 mm. It is reinforced with a rot proof, isotropic, thermally stabilised, non-woven polyester fabric strengthened glass fibre mat and is flexible at -10 °C. The top surface is coated with talc, which ensures the bond of the overlying layer and fast welding of the joints. The underside of the product has a burn-off film for easy torch-application.

  • Easy to install by torching method
  • Fully bonded
  • Good durability
  • High impact resistance
  • Very good mechanical properties (tensile, tear, shear)
  • Fast and easy installation
Product Data Sheet Show all documents

Usage

The Product is used as a waterproofing membrane for:
  • Balconies and terraces under a heavy protection layer such as tiles or gravel.
  • Flat and sloping roofs
  • Inverted roofs
  The Product is used as a:
  • Exposed cap sheet in a multi-layer system
  • Single layer under heavy protection

Advantages

  • Easy to install by torching method
  • Fully bonded
  • Good durability
  • High impact resistance
  • Very good mechanical properties (tensile, tear, shear)
  • Fast and easy installation

Packaging

Roll width

1.0 m

Roll length

10.0 m

Refer to current price list for packaging variations.

Colour

Top surface

Talc

Bottom surface

Polyethylene film

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • CE marking and declaration of performance based on EN 13707:2004+A2:2009 Flexible sheets for waterproofing — Reinforced bitumen sheets for roof waterproofing 

  • AS4654.1- 2012- Approved for external above ground use (Test certificate available upon request)
Product Information

Composition

Composition

APP modified bitumen

Reinforcing material

Double non-woven polyester fabric strengthened glass fibre mat

Shelf life

36 months from date of production

Storage conditions

The Product must be stored in original unopened and undamaged packaging in dry conditions and temperatures between +5 °C and +35 °C. Store in a vertical position. Do not stack pallets of the rolls on top of each other, or under pallets of any other materials during transport or storage. Always refer to packaging.

Effective thickness

Effective thickness

3.0 mm ± 0.2 mm
Technical Information

Resistance to tear

Longitudinal (MD)

170 N ± 55 N

Transversal (CMD)

180 N ± 55 N

Joint shear resistance

Longitudinal

500 N/50 mm ± 100 N/50 mm

Transversal

500 N/50 mm ± 100 N/50 mm

Flexibility at low temperature

≤ -10 °C

(EN 1109)

Watertightness

Method B: 24 hours at 60 kPa

Pass

Reaction to fire

Class E

(EN 13501-1)

Application

Application Information

Ambient air temperature

Minimum

+5 °C

Maximum

+40 °C

Relative air humidity

Maximum

80 %

Substrate temperature

Minimum

+5 °C

Maximum

+40 °C
Application steps

SUBSTRATE QUALITY

SYSTEM DESIGN

Consider the following when designing the roof system:

  • The supporting structure must be of sufficient structural strength to support all new and existing layers of the roof build-up.

  • The complete roof system must be designed to withstand and be secured against wind uplift loadings.

  • The wind uplift resistance of the adhered roofing assembly is limited by the adhesion strength of the Product to the substrate.

SUBSTRATE CONDITION

The substrate surface must be uniform, firm, smooth and free of any sharp protrusion or burrs, clean, dry, free of grease, laitance, oil, dust and loosely adhering particles.

SUBSTRATE PREPARATION

  • PRIMING
  • Apply Sika® Igolflex P-10+ primer at a rate of 6-8m2 per litre.  Note: Consumption rates will vary depending on substrate type and porosity
  • Allow the primer to dry before membrane installation.

APPLICATION

IMPORTANT

  • At low temperatures, take care unrolling to avoid damaging the membrane. 
  • Use suitable footwear to avoid puncturing the membrane.
  • Do not apply to wet, damp or unclean surfaces.
  • Do not over-torch the membrane otherwise the polyester reinforcement (which melts at 260 °C) will be damaged making the membrane un-useable. 
  • If membrane is insufficiently heated, this can cause reduced adhesion to the substrate, between layers or on the overlaps. If this occurs, un-bonded areas must be lifted and re-torched. 
  • If a seasonal symbol is printed on the roll’s label, it is advisable to use the membrane during the indicated season.

ALIGNMENT

Unroll, align and re-roll correctly before torching.

OVERLAPS

Side: 100mm. End: 150 mm.

FASTENING

Fidia Polyester when used as a roofing base sheet, can be mechanically fixed on the substrate by using the correct type of fasteners. Contact Sika Technical Services for additional information.

TORCHING

Use a gas burner to heat the substrate and the backing film on the underside of membrane. When the backing film starts to melt, the membrane is ready to stick. Roll the membrane forward and press firmly against the substrate to bond. Ensure a bead of melted bitumen
is visible along the full length of the overlap sides 

DETAILING

All details such as internal and external corners, upstands, vent pipes, drains, support metalwork etc. must be cut and sealed effectively. Detailing must follow the recommended guidelines and good practice for torch-applied membranes.

Documents