• Meets or exceeds the ASTM D6163, Type I, Grade S
• Underwriters Laboratory (UL)
• FM Global

SBS-modified bitumen

Non-woven spunbond polyester fabric stabilized with fiberglass

36 months from date of production

The Product must be stored in original unopened and undamaged packaging in dry conditions and temperatures between 41°F (5°C) and 95°F (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.

Sand

Non-woven polypropylene fabric

88 pounds per roll

Maximum 80%

• The supporting structure must be of sufficient structural strength to support all new and existing layers of the system build-up.
• If used as a roof system, the complete system must be designed to withstand and be secured against wind uplift loadings.
• 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.

To avoid coinciding joints, lay the membranes parallel to one another, align it properly, ensure the specified overlaps are followed, and then re-roll it before application.

MEMBRANE OVERLAPS

• Overlap the membranes by a minimum of 4" (100 mm) on the sides and 6" (150 mm) on each end. 
• At the end overlap, cut off a corner measuring 4" (100 mm) per side at an angle of 45°.
• End laps must be staggered 18'' (46 cm) apart.
• Offset cap sheet side and end laps so they are positioned at least 12'' (28 cm) away from any base ply laps.
• A mininum 20 lb (9 kg) roller must be used on all side and end laps, following immediately behind the heat welding. Apply uniform pressure across the lap area while the bituminous compound is warm to ensure a positive bond.
• A continuous bead of asphalt approximately 1/4 inch wide should be visible at all laps after application.
• The edge of the seam must be left untooled (not buttered).

IMPORTANT: DO NOT STACK LAPS!

COLD-ADHESIVE BONDING

1. Apply the recommended adhesive at the required consumption onto the surface.
2. Apply the membrane onto the adhesive while still fresh. It cannot be cured.
3. Roll the surface of the applied membrane with a roller from the center to the edge to remove any air bubbles.
4. Seal the overlaps by torching or welding. 

Suitable substrates for cold adhesion:

• Concrete
• Lightweight concrete
• Wood
• Metal
• Cementitious screed
• Perlite screed
• Bituminous membranes with a smooth surface
• Fiber glass
• Polyisocyanurate insulation
• Polystyrene (EPS, XPS)
• Gypsum cover board
• High density ISO cover board

HOT-APPLIED BONDING (MOPPING)

Apply the hot melt at the required consumption onto the surface. Refer to the individual Product Data Sheet of the asphalt.

1. Apply the membrane onto the asphalt while still hot.
2. Roll the surface of the applied membrane with a roller from the center to the edge to remove any air
   bubbles.
3. Seal the overlaps with asphalt.

Suitable substrates for mopping:

• Concrete
• Gypsum cover board
• Bituminous membranes with a smooth surface
• Coatings (check the compatibility)
• Brick masonry
• Cementitious screeds

NOTE: This membrane is compatible with different asphalt types.

Contact Sika® Technical Services for information on choosing the right one for your project.

DETAILING

Use a sharp knife to cut in all details such as internal and external corners, upstands, vent pipes, drains, support metalwork etc.

Refer to the relevant method statement for further information on detailing.