Sarnavap®-5800 SA

12 months from date of production if stored correctly.

Product must be stored in original unopened and undamaged sealed packaging in dry conditions and temperatures between + 5 °C and + 35 °C. Do not stack pallets of the rolls on top of each other, or under pallets of any other materials during transport or storage.

80 m

1.07 m

~ 0.25 mm

0.29 kg / m²

The following product is suggested to be considered for use depending on substrate types:

• Sikafloor-151

The substrate can be one of the following materials:

Plywood, OSB, metal / steel, wood, concrete

(Sample substrate is aluminum plate.)

+5 °C min. / +60 °C max.

+5 °C min. / +50 °C max.

The supporting structure must be of sufficient structural strength to apply all new and existing layers of the roof build-up and the complete roof system must be designed and secured against wind uplift loadings if exposed.
Sarnavap®-5800 SA is installed on corrugated/profiled metal and plywood / OSB decks. Any other substrate type requires approval by Sika.
The substrate must be uniform, firm, smooth and free of any sharp protrusion or burrs, clean, dry, and free of grease, bitumen, oil, dust and loose surface sand / gravel.

Use the appropriate preparation equipment to achieve the required substrate quality. If dust is present on the substrate, it must be completely removed before application of product using suitable dust extraction equiqment. 

Substrate Primer

Reference must be made to further documentation where applicable, such as relevant method statement, application manual and installation or working instructions.

Installation procedure may vary slightly depending on site conditions.

Priming

Where required, apply Sikafloor-151 to the prepared substrate at the correct consumption rate.

Alignment

• Profiled metal decks:

The product sheets must be laid in the direction of the deck ribs. Where side/logitudinal ovverlap seams occur, they must be fully supported by aligning over the full surface of a top rib.

• Concrete substrates

Sarnavap®-5800 SA may be fully adhered or loosely-laid to concrete substrates.

• All deck types:

Unroll a sheet and align into the corect position. Subsequent sheets must be rolled out and aligned taking into consideration the overlap seam requirements.

Overlap seams

Side / longitudinal:   50 mm

End / T-joints:        50 mm

To achieve effectively sealed overlap seams, they must be rolled down firmly with a pressure roller or by applying pressure.

Profiled metal decks

At the end of the rolled sheet, an additional 20 cm wide Sarnavap®-5800 SA support strip must be applied. It must be positioned so it aligns perpendicular to the deck rib direction. This provides a continuous support over the ribs allowing the ends of the sheets to be fully bonded.

Bonding

Check the alignment of the sheets before bonding. Realign where necessary. At one end of the sheet, peel away part of the release liner from the backside and bond this part to the substrate, then peel away the release liner sideways from the rest of the Sarnavap®-5800 SA to allow it to bond to the substrate.  Roll the entire surface area of the applied membrane with a suitable silicone roller.

At T-joints, the edge of the middle, covered sheet is to be beveled at 45°. Using a small pressure roller, all overlaps including the steps at the bevels must be firmly pressed together after being bonded into position.

Detailing

All details such as internal and external corners, upstands, vent pipes, support metalwork etc. must be cut and sealed effectively. Sarnavap®-5800 SA must always be attached on the warm side of the thermal insulation.

Temporary waterproofing

If Sarnavap®-5800 SA is to provide a temporary waterproofing layer during construction (up to 2 weeks), a slope of at least 2% (~1.1°) must be provided to ensure drainage with no standing water. Roof drainage lines must be adequately sized.