Sikaplan® S-20

• Conformity with LEED v4 MRc 2 (Option 1): Building Product Disclosure and Optimization – Environmental Product Declarations
• Conformity with LEED v4 MRc 3 (Option 2): Building Product Disclosure and Optimization - Sourcing of Raw Materials
• BRE Environmental Product Declaration (EPD)

• CE Marking and Declaration of Performance to EN 13956 - Polymeric sheets for roof waterproofing

• FM Approved FM Approvals, Sikaplan® S, FM Approvals, Certificate compliance No. 4D4Q7.AM

• External fire performance EN 13501-5 Brooft4

EN 13956: Polymeric sheets for roof waterproofing

5 years from date of production

Product must be stored in original unopened and undamaged packaging in dry conditions and temperatures between +5 °C and +30 °C. Store in a horizontal 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.

The following products must be considered for use depending on roof design:

• Sikaplan® S-20 un-reinforced sheet for detailing
• Moulded corner pieces, prefabricated corners and pipe flashings
• Sika-Trocal® Metal Sheet Type S
• Sika-Trocal® Cleaner L 100
• Sika-Trocal® Welding Agent
• Sika-Trocal® Seam Sealant
• Sika-Trocal® C 733 (Contact adhesive)

Not compatible in direct contact with bitumen, tar, fat, oil, solvent containing materials and other plastic materials, e.g. expanded polystyrene (EPS), extruded polystyrene. These materials could adversely affect the product properties.

¹⁾ md =      machine direction
²⁾ cmd =     cross machine direction

¹⁾ md =      machine direction
²⁾ cmd =     cross machine direction

¹⁾ md =      machine direction
²⁾ cmd =     cross machine direction

¹⁾ md =      machine direction
²⁾ cmd =     cross machine direction

-5 °C min. / +60 °C max. for hot air welding

+5 °C min. / +60 °C max. for cold welding

-10 °C min. / +60 °C max. for hot air welding
+5 °C min. / +60 °C max. for cold welding

Hot welding overlap seams

Electric hot air welding equipment, such as hand held manual hot air welding equipment and pressure rollers or automatic hot air welding machines with controlled hot air temperature capability of a minimum +600 °C.

Recommended type of equipment:

• Manual: Leister Triac
• Semi-automatic: Leister Triac Drive

The substrate surface must be uniform, smooth and free of any sharp protrusions or burrs, etc.
Sikaplan® S-20 must be separated from any incompatible substrates / materials by an effective separation layer to prevent accelerated ageing.

Installation procedure

Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

Fixing method - General

The waterproofing membrane is installed by loose laying with mechanical fastening in seam overlaps or independent from overlaps with the Sika-Trocal® disc system. Overlap seams are hot welded using specialised hot air equipment.

Hot welding method

Overlap seams must be welded by electric hot welding equipment. Welding parameters including temperature, machine speed, air flow, pressure and machine settings must be evaluated, adapted and checked on site according to the type of equipment and the climatic conditions prior to welding. The effective width of welded overlaps must be a minimum of 20 mm.

Cold welding method

If the temperatures are suitable, overlap seams can be welded using Sika-Trocal® Welding Agent. The effective width of cold welded overlaps must be a minimum of 30 mm. Cold welded seam edges must be sealed with Sika-Trocal® Seam Sealant after testing.

Testing overlap seams

The seams must be mechanically tested with a screwdriver (rounded edges) to ensure the integrity/completion of the weld. Any imperfections must be rectified by hot air welding or cold welding if temperature conditions are satisfied.