Sikaplan® SGK-18
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
Usage
Roof waterproofing membrane for:- Fully bonded, exposed roofs
- Bitumen sheet membranes: Slate, mineral granules, new and aged
- Concrete
- Fibre cement boards
- Lightweight concrete
- Metal decking
- Sikatherm Mineral Wool DD
- 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 | 12,50 m |
| Roll width | 2,00 m |
| Roll weight | 62,50 kg |
Refer to current price list for packaging variations.
Colour
| Surface | slightly structured |
| Colours | |
| Top surface | light grey (~RAL 7047) lead grey (~RAL 7011) |
| Bottom surface | dark grey |
Top surface of sheet is available in other colours on request, subject to minimum order quantities.
Product Details
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 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
| 12,50 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) |
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.
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(t1) < 20°, < 20°, BROOF(t3) < 10° / < 70° | (EN 13501-5) |
Reaction to Fire
Class E | (EN ISO 11925-2, classification to EN 13501-1) |
Application
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
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.