SikaShield® P44 T HP 3 mm

• 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

Non-woven polyester fabric stabilized with glass fibre

24 months from date of production

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.

SikaShield® P44 T HP 3 mm must be protected from damage during any ongoing site activities. The membrane can only be used as temporary waterproofing for 2 weeks before installation of a suitable cap sheet is required.

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.

PRIMING

Primer selection

Note: For information on selecting the appropriate primer, contact Sika technical service.

1. All substrates must be primed with either SikaRoof® Primer-610 Spray or SikaRoof® Primer-600 UK prior to the application of the membrane at the required consumption onto the prepared dry surface.
2. Note: Refer to the individual Product Data Sheet of the primer.
3. Allow the primer to dry before membrane installation.

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.

Suitable substrates for torching

• Concrete

• Cementitious screeds

• Bituminous membranes with a smooth surface

• Brick masonry

• Cementitious screeds