Sika-Trocal Product Range

SIKA-TROCAL MEMBRANES WATERPROOFING SHEETS

Type S
A homogenous membrane, that is without any polyester fabric carriers, intended to be used so;ely as an exposed roof waterproofing membrane restrained against wind uplift forces by mechanical fasteners.  Containing Ultra Violet stabilisers and fire retardants, Type S is highly resistant to ageing and industrial pollutants and will require no further surface treatments or coverings or any other maintenance throughout its service life.  The absence of any carrier within the membrane means that the natural flexibility and extensibility of the product is left unrestricted so it has the ability to be fully utilised in absorbing all he movements that occur on any roof without failure.  Also the elasticity of the membrane means that when dynamic wind loads are applied to the membrane the full dynamic force of that load is not directly transmitted to the fasteners thus reducing the stress they would otherwise receive.  The homogenous nature of the membrane also allows the use of 'plastic memory', stretching the membrane during manufacture so that when installed a limited amount of self tensioning will take place, thus removing the creases that are impossible to avoid during installation.   
Colours: Light Grey, Slate Grey and Anthracite

Type SG
An identical membrane to Type S with the addition of a layer of random glass fibres in the middle of its thickness which is designed to virtually eliminate shrinkage.  This feature makes Type SG the material of choice on concave roof surfaces where the radius of the curve is 20 metres or less, the fibre glass layer preventing the Type SG sheet from tensioning itself and pulling away from the curved surface between the fasteners and creating facets on the roofscape.  
Colours: Light Grey, Slate Grey and Anthracite

Type SGK
Manufactured from the Type S formulation and incorporating a centrally placed restraint of glass fibres for thermal stability and a polyester fleece bonded to the underside to create a separation layer and key for the adhesive.
Colours: Light grey, slate grey

Type SGmA
A homogenous membrane, with the addition of a layer of random glass fibres in the middle of its thickness which is designed to virtually eliminate shrinkage and provide the necessary dimensional stability.  Intended to be used solely as a covered roof membrane restrained against wind uplift forces by the dead weight of ballast.  In certain applications, such as with timber decking for instance, it can also require the use of additional restraint in the form of mechanical fasteners as used with the Type S. Containing biocides, Type SGmA is highly resistant to ageing and industrial pollutants and the bacteria that flourish in the moist layer of dirt present at membrane level in all ballasted roofs for long periods of time. Like Type S the Type SGmA will not require any maintenance throughout its service life. Additionally the membrane and its joints are root proof, which makes the material suitable for incorporation, if required, into a garden roof.

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SIKA-TROCAL ANCILLARY SHEETS

WBP Walkway
A layer of pyramidically embossed UV stabilised plasticised PVC sheet of 1.5mm thickness.  This is welded to the Type S membranes as a slip resistant surface for walkways.  In all circumstances this is associated with steel plate reinforcement under the Type S.  WBP is provided in black so that the walkway paths across the roof are clearly defined.  Usually installed as original fitment as the roof is constructed.

Trocal WBP sheets are only intended to be exposed and are not to be covered or ballasted, as they are not formulated to resist the effects that arise in that very different environment.

HD Walkway
A heavy duty version of the WBP above, this is a layer of pyramidically embossed UV stabilised plasticised PVC sheet of 4.0mm thickness that is welded to the Type S membranes as a slip resistant surface for walkways.  HD WBP is provided in dark grey so that the walkway paths across the roof are clearly defined.  Used as an alternative way of forming a walkway to that described above, usually when further routes are required after completion of the original installation.

HD WBP sheets are only intended to be exposed and are not to be covered or ballasted, as they are not formulated to resist the effects that arise in that very different environment.

Type P Polyester Fleece
A needle punched non-woven 300 g/m2 polyester fleece which is intended to be used as both a protective and separation layer preventing contact between the waterproofing sheets and any rough/abrasive surfaces or incompatible materials.

Type SBV Protection Layer
PVC skinned polyester fleece for use as a heavy-duty protective and separation layer.  Main usage is as a protective layer on tope of Type SGmA, fleece side down or on mechanically fixed membranes, fleece side up, when small items need to be located there.

Type S-Vap 500E Vapour Check
Polyethylene sheets that offer a reasonable level of resistance to the passage of water vapour into the roof construction for most projects where a vapour control layer is actually required.

Type DS-Alu Vapour Barrier
Reinforced polythene sheets faced on the upper surface with aluminium foil and on the reverse side with protective polyethylene foam.  These sheets offer a very high level of resistance to the passage of water vapour into the roof construction, especially for those projects where this level of performance is required.

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SIKA-TROCAL ANCILLARY PRODUCTS

Sika-Trocal Metal
Galvanised steel that has a top layer of Type S factory bonded to one side and protective enamel the other.  Supplies as a flat sheet, Trocal Metal is cut and bent to form perimeter, drip edge, penetration and any other necessary profiles to which the membrane is secured by welding.  Profiles are tailor made for each project.  A similar material but laminated with a special membrane is used for the manufacture of the Trocal Metal holding down discs used to secure the Type S and Type SG membranes against wind uplift forces.
Colour: Light grey, slate grey and anthracite

Sika-Trocal Injection Moulded Corners
Preformed internal and external corner pieces for additional security at corners.  In Type S and Type SGmA formulations and colours to suit, the corner pieces are welded on top of the roofing sheets.

Sika-Trocal SE profiles.
An extruded semi-flexible PVC profile create standing seam or shadow effects by welding to the surface of the waterproofing.