Product Data Sheet Show all documents

SikaShield® P44 MG HP 4,5 kg/m²

Plastomeric bituminous membrane surfaced with mineral granules and flexible at -10 °C

SikaShield® P44 MG HP 4,5 kg/m² is an APP modified bituminous roof waterproofing membrane with a weight of 4.5 kg/m². It is reinforced with a non-woven polyester fabric dimensionally stabilised with glass fibre and is flexible at -10 °C. The top surface is coated with mineral granules, which allows the permanent exposure to UV radiation. The underside of the product has a burn-off film for easy torch-application.

  • Decorative mineral granules
  • Fully bonded
  • Very good mechanical properties (tensile, tear, shear)
  • Flexible in cold temperatures
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Product Data Sheet Show all documents

Usage

The Product is used as a waterproofing membrane for:
  • Flat and sloping roofs
  • New construction and refurbishment projects
  • Exposed cap sheet in a multi-layer system
 

Advantages

  • Decorative mineral granules
  • Fully bonded
  • Very good mechanical properties (tensile, tear, shear)
  • Flexible in cold temperatures

Packaging

Roll width

1.0 m

Roll length

8.0 m

Refer to current price list for packaging variations.

Colour

Top surface

Mineral Granules

Bottom surface

Polyethylene film

Top layer colour

Refer to current price list for color variations

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

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

Chemical Base

Composition

APP modified bitumen

Reinforcing material

non-woven polyester fabric dimensioanlly stabilised with glass fibre

Shelf Life

24 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. Protect the Product from direct weather exposure and sunlight. Store in a vertical position. Pallets may be stacked on top of the rolls if all following conditions are met:

  • The rolls have a wooden board on top, separating them from the pallet above.
  • The weight of the pallet above is equal to or less than the weight of the rolls.

Always refer to packaging.

 

Mass per unit area

Mass per unit area

4.5 kg/m² ± 0.45 kg/m²

(EN 1849-1)
Technical Information

Resistance to Tearing (nail shank)

Longitudinal (MD)

160 N ± 48 N

Transversal (CMD)

200 N ± 60 N

(EN 12310-1)

Joint Shear Resistance

Longitudinal

600 N/50 mm ± 120 N/50 mm

Transversal

400 N/50 mm ± 80 N/50 mm

(EN 12317-1)

Flexibility at low temperature

≤ -10 °C

(EN 1109)

Water Tightness

Method B: 24 hours at 60 kPa

Pass

(EN 1928)

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.

 

APPLICATION

IMPORTANT

Unrolling at low temperatures

At low temperatures, the membrane becomes less flexible.

  1. Be careful when unrolling to avoid damaging the membrane.

IMPORTANT

Damage through footwear

Footwear with spikes or sharp protrusions may puncture the membrane.

  1. Use footwear with a flat profile when walking over the membrane.

IMPORTANT

Damage through overheating

The polyester reinforcement melts at +260 °C. If it is damaged through overheating, the membrane becomes unusable.

  1. Keep moving the flame while torching to avoid overheating the membrane.

IMPORTANT

Reduced adhesion through insufficient heating

Make sure to heat the membrane sufficiently. If it is not sufficiently heated, the adhesion to the substrate, between layers or on the overlaps will be reduced.

  1. If the membrane does not adhere to other elements, lift and retorch the unbonded areas.

Seasonal symbol

Note: If a seasonal symbol is printed on the roll’s label, it is advisable to use the membrane during the indicated season.

Tackiness at high temperatures

Note: When laying the membrane at high temperatures, the integral adhesive will become 'tacky' and may restrict laying operations.

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