System Structure

• Primer 600 (on concrete and plywood/OSB substrates, if required)
• Decostik SP, to adhere specified insulation board onto S-Vap 5000E SA
• Decotherm – Tissue faced PIR Thermal Insulation
• S-Vap 5000E SA – Multi Layer self adhesive carrier membrane

Application Details

Consumption

• ~ 1.06 m² / square metre surface

Substrate Quality

S-Vap 5000E SA is released on all major structural decks; concrete decks, corrugated/profiled metal deck, and plywood/OSB decks. Any other substrate type requires approval by Sika.

Generally, substrates must be in plane, even and clean; further free of dust, oil and grease.

Depending on substrate type and roofing assembly (system application) S-Vap 5000E SA may only be used in combination with Primer 600.

Concrete deck:

In plane concrete deck and or/levelled screed. Substrate shall fulfil general requirements and shall not contain any pointy and/or coarse-grained surface areas. Primer 600 must be used in any case, approx. 200 g/m² – 400 g/m² depending on surface smoothness and porosity, if used in an adhered system.

Plywood/OSB deck:

Substrate shall be clean and dry.

The substrate must be primed first approx. 200 g/m², if used in an adhered system.

Corrugated metal deck:

Corrugated metal deck shall be clean, dry and free of oil, dust and grease.

No primer is required.

Vertical areas / upstands and flashing

Flashings and terminations form the edges of the vapour control function and airtight layer; thus these must be executed with care (until top edge of the insulation boards).

• Without primer: Plywood, OSB, metallic substrates (free of oil and grease), plasticizer-free synthetics (except for rigid polystyrene), bituminous materials (after sand or slate chips surfacing has been removed)
• With Primer 600: Concrete, masonry, raw wood products, porous materials require 2 primer coatings, approx. 200 g/m² - 500 g/m².

Decotherm Insulation:

Decotherm Insulation shall be properly installed, smooth without steps at joints, clean, dry and free of oil, dust and grease.

The boards must be primed with Primer 600 at approximately 150 g/m²

Substrate Preparation

Remove loose ends, clean or prime depending on substrate.

Application Conditions / Limits

Notes on Application/ Limits

Installation works shall be performed only by a QA Contractor where a Sika Liquid Plastics Product Guarantee is required.

Installation Instructions

Application Guidline

Depending on system used (mechanically fastened/ballasted/adhered) refer to relevant system information.

Application Method

Fixing Method – Adhered Systems:

S-Vap 5000E SA is adhered to the substrate. In case of a concrete or plywood/OSB substrate Primer 600 must be applied as substrate treatment, to achieve the required adhesion strength.

An approved thermal insulation board must be selected. In an adhered system, the specified thermal insulation board is being adhered to the S-Vap 5000E SA, using Decostik SP adhesive.

Finally S-Vap 5000E SA is adhered to the insulation boards, which are primed with Primer 600.

Installation Procedure

Before beginning adhere the S-Vap 5000E SA, the substrate must be checked (clean without any surface contaminations, free of foreign objects and or surface toppings, oil and grease free, and dry).

On profiled metal decks, the sheets must be laid in the direction of the deck, where the side/longitudinal seams are fully supported, positioned on the top flange of the profiled metal deck. At the end of the roll, an additional 20 cm wide S-Vap 5000E SA strip has to be adhered firmly on the already laid VCL sheets, positioned on centre and running perpendicular to the deck direction (laid rolls). This provides a firm backer to which the ends of the sheets can be adhered to.

S-Vap 5000E SA seams (side and end laps) are formed with an overlap of 7.5 cm by self-adhesion, no additional primer needed. To achieve tightly sealed seams the laps must be rolled down firmly with a pressure roller (silicone roller) or by applying pressure. If seams are not immediately closed after unrolling the S-Vap 5000E SA, all seams need to be properly cleaned with a proprietary solvented cleaner. Allow the cleaners to evaporate completely.

Roll out first S-Vap 5000E SA in the direction of the metal profile. Following rolls must be rolled out and aligned with the line marking which marks the overlap area at 7.5 cm. Adhere the first part of the self-adhesive vapour barrier and peel away the release liner sideways.

At T-joints the edge of the middle, covered sheet is to be bevelled (chamfered) at 45°. Using a silicone roller, all laps including the steps at bevels (chamfers) are to be firmly pressed together after being adhered into position. All flashings, upstands and penetrating elements e.g. vent pipe must be closed airtight, whereby the S-Vap 5000E SA must always be attached on the warm side of the insulation.

The full area of S-Vap 5000E SA must be pressed into place immediately after adhering, using pressure roller or similar.

OSB and Plywood boards of more than 50 cm width are not primed at the joints. Leave a strip of max. 10 cm width free of primer each side of the joint, to facilitate smaller movements of the boards. Where the width of the OSB or Plywood boards is less than 50 cm, the boards are primed with Primer 600 to a full spread.

If the S-Vap 5000E SA layer is to serve as temporary waterproofing during construction (4 weeks), a slope of at least 2 % (1:50) must be provided to ensure drainage. Roof drainage lines must be adequately sized.

When used as a carrier membrane

Any blisters in the S-Vap 5000E SA caused by trapped air or outgassing can be cut and resealed by applying pressure using a 40mm silicone seam roller. To retain the temporary waterproofing characteristics of the S-Vap 5000E SA, blisters should only be cut and resealed immediately prior to applying the base coat of the waterproofing system.

Tool Cleaning

Tools and equipment must be cleaned with cleaner immediately after use.

Notes on Installation/ Limits

Installation works shall be performed only by specialist contractors for roofing.

Temperature limits for the installation of the S-Vap 5000E SA:

• Substrate temperature: at least +5 °C min.
• Ambient temperature: at least +5 °C min.

Note:

The limiting factor in the wind uplift resistance of the adhered roofing assembly will be under the adhesion strength of the S-Vap 5000E SA to the substrate. See information under “Uses”.

S-Vap 5000E SA is not suitable as permanent waterproofing. It is not designed as roofing membrane and therefore can not replace the waterproofing membrane.