Product Data Sheet Show all documents
Sikaplan® SGK-18

Sikaplan® SGK-18

Polymeric membrane for adhered roof waterproofing

Sikaplan® SGK-18 is a multi-layer, polyvinyl chloride, weldable, (PVC) roof waterproofing sheet membrane which is fully bonded using Sikal®
adhesive. It contains an inlay of glass non-woven and polyester fleece backing according to EN 13956.

  • Resistant to permanent UV exposure
  • High dimensional stability from glass fleece inlay
  • Water vapour permeable
  • Resistant to many common environmental
    influences
  • Hot air weldable
  • No open flame equipment required
  • Hot air welding without use of open flames
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Product Data Sheet Show all documents

Usage

Roof waterproofing membrane for:
  • Fully bonded, exposed roofs
 The product can be used on the following substrates:
  • Bitumen sheet membranes: Slate, mineral granules, new and aged
  • Concrete
  • Fibre cement boards
  • Lightweight concrete
  • Metal decking
  • Sikatherm Mineral Wool (with facing)
  • Oriented Strand Boards (OSB)
  • Plywood panels
  • Sikatherm PIR GT
 

Advantages

  • Resistant to permanent UV exposure
  • High dimensional stability from glass fleece inlay
  • Water vapour permeable
  • Resistant to many common environmental
    influences
  • Hot air weldable
  • No open flame equipment required
  • Hot air welding without use of open flames

Packaging

Packing unit

Refer to price list

Roll length

15,00 m

Roll width

2,00 m

Roll weight75,00 kg

Refer to current price list for packaging variations.

Colour

Surface

slightly structured

Colours

Top surface

light grey (~ nearest RAL 7047)

lead grey (~nearest RAL 7011)

traffic white (~nearest RAL 9016)

Bottom surface

dark grey

Top surface of sheet is available in other colours on request, subject to minimum order quantities.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to EN 13956 - Polymeric sheets for roof waterproofing
  • EN13501-5 Broof(t4) (as part of system).
  • Reaction to Fire, EN 13501-1

 
Product Information

Product Declaration

EN 13956: Polymeric sheets for roof waterproofing

Shelf Life

5 years 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 +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.

Visible Defects

Pass

(EN 1850-2)

Length

15,00 m (-0 % / +5 %)

(EN 1848-2)

Width

2,00 m (-0,5 % / +1 %)

(EN 1848-2)

Effective Thickness

1,8 mm (-5 % / +10 %)

(EN 1849-2)

Straightness

≤ 30 mm

(EN 1848-2)

Flatness

≤ 10 mm

(EN 1848-2)

Mass per unit area

2,5 kg/m2  (-5 % / +10 %)

(EN 1849-2)
System information

Compatibility

  • The top surface of the membrane is not compatible in direct contact with bitumen, tar, fat, oil, solvent containing materials and certain plastic / thermoplastic materials, e.g. expanded polystyrene (EPS) and extruded polystyrene (XPS).
  • The underside of the membrane is protected from some incompatible materials by the polyester fleece backing.
Technical Information

Resistance to Impact

hard substrate

≥ 800 mm

soft substrate

≥ 1500 mm

Hail Resistance

rigid substrate

≥ 25 m/s

flexible substrate

≥ 32 m/s

Tensile Strength

longitudinal (md)1)

≥ 600 N/50 mm

transversal (cmd)2)

≥ 600 N/50 mm

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

Elongation

longitudinal (md)1)

≥ 50 %

transversal (cmd)2)

≥ 50 %

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

Tear Strength

longitudinal (md)1)

≥ 150 N

transversal (cmd)2)

≥ 150 N

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

Joint Peel Resistance

≥ 300 N / 50 mm

(EN 12316-2)

Joint Shear Resistance

≥ 500 N / 50 mm

(EN 12317-2)

Dimensional Stability

longitudinal (md)1)

≤ |0,3| %

transversal (cmd)2)

≤ |0,3| %

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

Foldability at Low Temperature

≤ -25 °C

(EN 495-5)

Water Tightness

Pass

(EN 1928)

Effect of Liquid Chemicals, Including Water

Resistant to many chemicals.   

Contact Sika Technical Services for additional information.

UV Exposure

Pass (> 5 000 h / grade 0)

(EN 1297)

External Fire Performance

BROOF(t4)

(EN 13501-5)

Reaction to Fire

Class E

(EN ISO 11925-2, classification to EN 13501-1)

Application

Application Information

Ambient Air Temperature

-15 °C min. / +60 °C max. for hot air welding
+5 °C min. / +60 °C max. for cold welding

Substrate Temperature

-25 °C min. / +60 °C max. for hot air welding
+5 °C min. / +60 °C max. for cold welding

 
Application steps

EQUIPMENT

Hot air welding equipment

IMPORTANT

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 before welding.

 

Select the most appropriate equipment required for the project:

  • Hand-held manual electric hot air welding equipment
  • Hand-held rubber or silicone seam pressure roller
  • Hot air welding machines with a minimum controlled hot air temperature capability of +600 °C.

Recommended type of hot air welding machines:

  • Manual: Leister Triac PID
  • Automatic: Leister Variamat

SUBSTRATE QUALITY

  • The roof construction and associated components must comply with national and local regulations.
  • The supporting structure must be of sufficient structural strength to apply all new and existing layers of the roof build-up.
  • The complete roof system must be designed and secured against wind uplift loadings.
  • The substrate surface must be uniform, smooth and free of any sharp protrusions or burrs, etc.
  • The supporting layer must be compatible with the membrane, solvent resistant, clean, dry and free of grease and dust.
  • Metal sheets must be degreased.

APPLICATION

Strictly follow installation procedures as defined in the project specfication, application manuals and working instructions etc.

Reference must be made to the Installation instructions: Sikaplan® SGK-types for adhered system.

 

 

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