Sarnavap®-5000 E SA
Sarnavap®-5000 E SA is a multi-layered, self-adhesive vapour barrier manufactured from polymer modified bitumen with a glass-fibre matt reinforcement and an aluminium foil top layer.
- Ease and speed of installation from self-adhesive properties
- Can be used in a fully adhered roof build-up. No additional fasteners required for securing the thermal insulation boards to the structural deck
- Temporary waterproof top layer for up to 4 weeks, without the requirement for additional weight/ballast and/or mechanical fastenings
- High self adhesion strength allows high wind design loads from 2,4 kN/m2 to 2,8 kN/m2
- Provides an air tight layer
- High tear resistance to foot traffic during roof build up activities
- High water vapour resistance makes it suitable in combination with all types of membranes
- Accommodates a wide range of roof system, deck types and substrate combinations
- Can be bonded onto flashings, inclined or vertical surfaces
Usage
Sarnavap®-5000 E SA may only be used by experienced professionals. As a vapour barrier over most common roof deck types:- Concrete / cementitious
- Metal
- Plywood panels, timber boards, oriented strand board (OSB)
Advantages
- Ease and speed of installation from self-adhesive properties
- Can be used in a fully adhered roof build-up. No additional fasteners required for securing the thermal insulation boards to the structural deck
- Temporary waterproof top layer for up to 4 weeks, without the requirement for additional weight/ballast and/or mechanical fastenings
- High self adhesion strength allows high wind design loads from 2,4 kN/m2 to 2,8 kN/m2
- Provides an air tight layer
- High tear resistance to foot traffic during roof build up activities
- High water vapour resistance makes it suitable in combination with all types of membranes
- Accommodates a wide range of roof system, deck types and substrate combinations
- Can be bonded onto flashings, inclined or vertical surfaces
Packaging
| Roll size | |
| Length | 30,00 m |
| Width | 1,08 m |
| Weight | 22,68 kg |
Refer to current price list for packaging variations
Colour
Surface: Aluminium foil with PET film
Product Details
APPROVALS / STANDARDS
- CE Marking and Declaration of Performance to EN 13970 - Bitumen water vapour control layers
- Fire Testing DIN EN 13501-1, Sarnavap®-5000 E SA, MPA NRW, Test report No. 230005541-14
- Water Pressure, Fire Behaviour and Shear tests DIN EN ISO 291 - 23/50 Class 1, Sarnavap®-5000 E SA, MPA NRW, Test report No. 220009916
Chemical Base
Polymer modified bitumen (self-adhesive) with composite aluminium as top layer
Shelf Life
12 months from production date.
Storage Conditions
Product must be stored in original unopened and undamaged sealed packaging in dry conditions and temperatures between + 5 °C and + 35 °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
Product Declaration
EN 13970: Bitumen water vapour control layers
Visible Defects
| Pass | (EN 1850-1) |
Length
| 30,00 m (+2 %) | (EN 1848-2) |
Width
| 1,08 m (±1 %) | (EN 1848-2) |
Thickness
| 0,60 mm (±10 %) | (EN 1849-2) |
Straightness
| Pass | (EN 1848-1) |
Mass per unit area
| 650 g/m2 (±10 %) | (EN 1849-2) |
System Structure
The following products must be considered for use depending on roof design:
| Deck type | Metal |
| Primer | Primer-600 |
| Consumption | ~100 g/m2 |
| Wind Uplift design load (Max)* | 2,4 kN/m2 |
| Deck type | Concrete / cementitious |
| Primer | Primer-600 |
| Consumption | ~200– 400 g/m2 |
| Wind uplift design load (Max)* | 2,8 kN/m2 |
| Deck type | Plywood, timber boards, OSB |
| Primer | Primer-600 |
| Consumption | ~200 g/m2 |
| Wind uplift design load (Max)* | 2,8 kN/m2 |
Very porous substrate may require 2 coats of Primer-600: ~200–500 g/m2
Primer required for fully adhered roof build-up systems.
Consumption figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level or wastage etc.
* Wind uplift design load based on self adhesion strength
Ancillary products:
- Sika RoofBond to bond insulation board onto $v(name
- Sika-Trocal® L 100
- Sarna Cleaner
- Sarnafil® T Prep
- Solvent T 660
Compatibility
The substrate can be one of the following materials:
Concrete, lightweight concrete, screed, Oriented Strand Boards (OSB), plywood panels, timber boards, metal decking.
For other substrate types contact Sika Technical Services for additional information.
Resistance to Impact
| Pass (procedure A 150 mm) | (EN 12691) |
Tensile Strength
| ≥ 500 N/50 mm | (EN 12311-1) |
Tear Strength
| ≥ 100 N | (EN 12310-1) |
Joint Peel Resistance
| ≥ 50 N/50 mm | (EN 12316-2) |
Joint Shear Resistance
| ≥ 400 N/50 mm | (EN 12317-2) |
Flexibility at low Temperature
| -20 °C | (EN 495-5) |
Reaction to Fire
| Class E | (EN ISO 11925-2: 2002) (EN 13501) |
Resistance to Alkalinity
| Pass | (EN 1847) |
Artificial Ageing
| Pass | (EN 1296) (EN 1931) |
Water Tightness
| Pass | (EN 1928) |
Application
SUBSTRATE QUALITY
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.
The substrate must be uniform, firm, smooth and free of any sharp protrusion or burrs, clean, dry, free of grease, bitumen, oil, dust and loose surface sand / gravel dressing.
SUBSTRATE PREPARATION
Use the appropriate preparation equipment to achieve the required substrate quality.
If dust exists on the surface, it must be completely removed before application of the product by suitable dust extraction equipment.
APPLICATION
Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.
Priming
Apply where required to the prepared substrate, Primer-600 at the required consumption.
Alignment
Profiled metal decks:
The sheets must be laid in the direction of the deck ribs. Where side/longitudinal overlap seams occur, they must be fully supported by aligning over the full surface of a top rib.
All deck types:
Unroll a sheet and align into the correct position. Subsequent sheets must be rolled out and aligned taking into consideration the overlap seam requirements.
Overlap seams
Side/longitudinal: 75 mm
End / T-joints: 75 mm
To achieve effectively sealed overlap seams, they must be rolled down firmly with a pressure roller or by applying pressure. If seams are not immediately closed after unrolling the Sarnavap®-5000 E SA, all seams must be cleaned with cleaner Sika Trocal L-100, Sarna Cleaner or Sarnafil T Prep. Allow the cleaners to evaporate completely before bonding.
Profiled metal decks:
At the end of the rolled sheet, an additional 20 cm wide Sarnavap®-5000 E 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. Re-align where necessary. At one end of the sheet, peel away part of the release liner from the underside and bond this part to the substrate. Then peel away the release liner sideways from the rest of the Sarnavap®-5000 E SA sheet to allow it to bond to the substrate. Then roll the entire surface area of the applied membrane with a suitable heavy roller.
At T-joints the edge of the middle, covered sheet is to be bevelled 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®-5000 E SA must always be attached on the warm side of the thermal insulation. The upper edge of the Sarnavap®-5000 E SA must be taken up to the top edge / surface of the insulation.
Temporary waterproofing
If Sarnavap®-5000 E SA is to provide a temporary waterproofing layer during construction (up to 4 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.
If Sarnavap®-5000 E SA is applied between +5 °C and +10 °C ambient temperature, it is necessary to have all the seams heated first using hot air welding equipment e.g. Leister Triac. Equipment must be set at ~300 °C with a speed of ~5 m/min before being rolled down firmly with a pressure roller.