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Koster Warm Roof System with TPO Single Ply Roofing Membrane - Environmentally Friendly Roof membrane.

Name: Koster Warm Roof System with TPO Single Ply Roofing Membrane - Environmentally Friendly Roof membrane.
Brand: Koster Aquatecnic Ltd
SKU: sTr7AKbcUYr84D7PQuT2mA

Verified by manufacturer 6 months ago

Koster TPO 2mm Reinforced Membrane – For mechanical fixing systems

Koster Aquatecnic Ltd

Third party certifications:

EPD
Certificate type

This environmentally friendly Warm Roof system is suitable for new build, refurbishment, and green roof projects. A range of membrane variants are available to cater for different fixing methods.

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+44 (0)1387 270252 Website

Application

The membranes are suitable for direct exposure to weathering and can be used to waterproof unventilated and ventilated flat roofs, pitched roofs, green roofs, terraces, balconies, roof gardens, as well as for the waterproofing of underground garages and lining of tanks.

Description

This warm roof waterproofing system based around the Koster TPO single-ply roofing membrane is suitable for a wide range of applications including new build, refurbishment of existing buildings or overlay of existing systems and is the ideal base for a green roof.

Other elements incorporated into this system include the Koster Vapour Barrier FR and depending on the selected variant, different adhesives and primers will also be used. According to the extensive fire testing carried out on this system, any PIR or PUR insulation board may be specified alongside this system.

This strong, robust, environmentally friendly and 100% recyclable membrane does not contain PVC or any other harmful chemicals therefore it will not contaminate water or planting, nor will it degrade over time.

It also offers excellent application characteristics, flexibility, longevity and is formulated for easy and uncomplicated jointing of the seams due to a wide welding temperature window.

Features and benefits:

Does not contaminate groundwater.
Completely UV stable.
Resistant to root and rhizome penetration.
Does not contain non-molecularly bound plasticizers.
Low maintenance.
Rot-proof.
Compatible with bitumen and polystyrene.
Acid and kerosene resistant.
Resistant against microorganisms and rodent attacks.
Customizable colours available (subject to minimum order quantity).
Recyclable and safe for health, water, soil and plants.
Free from softeners and chlorine.
Roll length: 20 m.
Can be used to directly overlay a failed PVC, Bitumen or PVC membrane without the need to strip the old roof.

Full project specific details and drawings are available from the manufacturer to support the specification. For further support, or if an insurance-backed guarantee is required, contact the manufacturer's technical team.

General information

Color	Grey Other
Finish	Matt
Material	Thermoplastic elastomer (TPE) Polyolefin
Shape	Rectangle
Length	20000 mm
Width	Bespoke
Height	Bespoke
Warranty description	20 year Guidance for specification option: KÖSTER TPO single ply roofing membrane only. The material has a manufacturer’s 20-year guarantee. There is also a 25-year insurance-backed guarantee available upon request.

Uniclass	Ss_30_40_30_80 Single layer sheet warm roof covering systemsPrimary
CAWS	J42/110 Warm deck roof covering J42/10 Warm deck roof covering

Product range	Roofing Systems

Specification data - Single layer sheet warm roof covering systems

System performance	- Manufacturer guidance Insert requirements.
Preparation	-
Horizontal work	Bonded or partially bonded cementitious levelling screed system. Construction joint sealants. Marine plywoods. Non-bituminous primers. Oriented strand boards. Softwood sections. Softwood roofing and cladding battens.
Skirtings and vertical work	Marine plywoods. Non-bituminous primers. Oriented strand boards. Softwood sections. Softwood roofing and cladding battens. Cement-gauged mortars.
Lower protection layer	Glass fibre fleeces. Plastics sheets.
Air and vapour control layer	-
Type	Koster Vapour Barrier FR. Guidance for specification option: 0.3 mm thick. Size: 50 x 1.5 m. Fire class B2 (DIN 18234), fibre mesh reinforced aluminium vapour barrier. Sd value: ≥1500 m. Calorific value: <10.500 kJ/m². Existing waterproof covering. Reinforced bitumen roofing sheets. Plastics sheets.
Attachment	Not applicable (self-adhesive). Guidance for specification option: KÖSTER self-adhesive vapour barrier only. Bitumen-based bonding compounds. Non-bitumen-based bonding compounds. Polyurethane (PUR) adhesives. Koster TPO SK Primer. Koster KBE Liquid Film.
Insulation	-
Type	Cellular glass insulation boards. Polyisocyanurate (PIR) foam boards. Polyurethane (PUR) foam boards.
Attachment	Non-bitumen-based bonding compounds. Polyurethane (PUR) adhesives. Washers. Wood screws.
Separating layer	Glass fibre fleeces. Plastics sheets.
Waterproof covering	-
Type	RT 820 thermoplastic polyolefin (TPO) membrane. Guidance for specification option: KÖSTER TPO Single Ply Roofing Membrane: TPO membrane based on a mixture of polyethylene (PE) and functional additives and have a centrally embedded glass fleece reinforcement. Mechanically fastened to seal roofs with direct weathering and are used under load (e.g. gravel, green roofs).
Attachment	Not required (loose laid). Koster Contact Adhesive. Guidance for specification option: On upstands and detail work. For adhering un-backed membranes to a substrate. Mechanical fix. Guidance for specification option: Through membrane overlaps and around perimeter/ penetrations.
Joints	Hot-air welded.
Accessories	Not required. Koster laminate metal sheet. Guidance for specification option: One-sided TPO-coated zinc-plated metal sheet used for forming parapet, gutter, drip and termination details. Size: 2 x 1 m. Available in a range of colours; consult manufacturer literature and insert requirements. 1.4 mm thick. Colour: Light grey. For forming parapet, gutter and drip details. Koster pre-formed external corners. Guidance for specification option: 90° – for the professional creation of external corners. Light grey, 100 mm long edge. 300 mm long edges also available; consult manufacturer literature and insert requirements. Koster pre-formed internal corners. Guidance for specification option: 90° – for the professional creation of external corners. Light grey, 100 mm long edge. 300 mm long edges also available; consult manufacturer literature and insert requirements. Koster roof outlets. Guidance for specification option: Range of roof drains; consult manufacturer literature and insert requirements. Koster top hats. Guidance for specification option: For cable or pipe penetrations. Koster tube washers and fixing screws. Guidance for specification option: For mechanical fixing. Koster TPO U unreinforced membrane; 2mm. Guidance for specification option: Unreinforced sheet for the Koster TPO roofing and waterproofing membranes, for the manual production of corners, gullies, flanges, and corner protection. For detailing work. Article no. RT 820 052 U. 525 mm wide. Code: RT 820 U. Koster cold roof vents. Guidance for specification option: Consult manufacturer literature and insert requirements. Koster maintenance walkway mat. Guidance for specification option: For creating safe protective walkways on flat roofs. Weldable with roofing membranes. Size (l x w x d): 785 x 590 x 4 mm. Walkway mat TPO/ FPO (PE) and ECB. 4 mm thick. Colour: Light grey. For non-slip maintenance walkways. Slip resistance: R10. Displacement space: V10. Koster round corner patch. Guidance for specification option: Light grey; for the waterproofing of corner formations such as skylights. Koster STER pipe flashings. Guidance for specification option: For the safe waterproofing of cable penetrations; consult manufacturer literature and insert requirements. Koster TPO metal composite coil. Guidance for specification option: As gutter flashing, coping, or drip edge with one-sided weldable TPO coating. 1 x 30 m coil. Koster waterspout parapet drainage outlets. Guidance for specification option: For drainage through parapet walls, consult manufacturer literature and insert requirements. Koster TPO SK primer. Guidance for specification option: Solvent-based resin primer for the application of Koster TPO SK (FR) membranes.
Upper protection layer	Glass fibre fleeces. Plastics sheets.
Surface protection	Loose surfacing decorative aggregates. Surface treatment fine aggregates. Clay paving tiles. Concrete flags. Plastics pavers. Koster adjustable pedestal supports.
System accessories	- Manufacturer guidance Insert requirements or leave blank.

Mass per unit area	1930 g/m² in accordance with DIN EN 1849-2. Manufacturer guidance KÖSTER TPO single ply roofing membrane.
Watertightness	10 kPa/24h watertight, in accordance with DIN EN 1928 (Method B).
ExposureClass	Exposure to liquid chemicals, including water, in accordance with DIN EN 1847: Passed (Method B). Exposure to bitumen, in accordance with DIN EN 1548: Passed. Guidance for specification option: Exposure to fire: See Reaction to fire. Manufacturer guidance KÖSTER TPO single ply roofing membrane.
Reaction to fire	Exposure to external fire, in accordance with DIN CEN/TS 1187; DIN 4102-7 and DIN EN 13501-5: Broof (t4). Guidance for specification option: Class E.
PhysicalPropertiesWeatheringResistance	Resistance to hail, in accordance with DIN EN 13583: Rigid substrate: ≥25 m/s. Soft substrate: ≥40 m/s.
Resistance	Manufacturer's standard. Guidance for specification option: Peel resistance of the overlap, in accordance with DIN EN 12316-2: Type of failure: 100% C, no failure in the overlap. Shear resistance of the overlap, in accordance with DIN EN 12317-2: Failure beyond the overlap. Water vapour diffusion resistance, in accordance with DIN EN 1931: µ: 85 000. Resistance to shock loads, in accordance with DIN EN 12691: ≥750 mm (Method A). ≥1250 mm (Method B). Fleece-backed: ≥700 mm (Method A) and ≥1500 mm (Method B). Resistance to static loading, in accordance with DIN EN 12730: 20 kg (Methods A and B). Tear continuation resistance, in accordance with DIN EN 12310-2: ≥200 N. Fleece-backed: ≥350 N. Tear resistance (nail shank), in accordance with DIN EN 12310-1: ≥500 N. Ozone resistance, in accordance with DIN EN 1844: Passed.
TensileStrength	≥7 N/mm² (Method B), in accordance with DIN EN 12311-2. Guidance for specification option: Elongation at break: ≥500% (Method B). Fleece-backed: ≥50% (Method A).
Flexibility at low temperature	≤-50°C, folding at low temperatures, in accordance with DIN EN 995-5.
Dimensional stability:	≤-0.2%, in accordance with DIN EN 1107-2.
UV resistance	UV stable. Behaviour under UV irradiation, elevated temperatures, and water, in accordance with DIN EN 1297 (1000 h): Passed: Level 0.
Standard	CE marked to EN 13956 0761-CPR-0422.
Performance characteristics	Manufacturer's standard. Guidance for specification option: KÖSTER TPO single ply roofing membrane:
Third-party certification	Manufacturer's standard. Guidance for specification option: B_roof(t4) fire certification to multiple roof build-ups. Environmental product Declaration by Institut Bauen und Umwelt e.V. Report on examining the strength of the roots of Sheets and coatings for green roofs according to the FLL procedure. The Fish Test (A14-02548) by BMG in Zurich. Official Test Report according to 5278/015/14 DIN EN 13967 MPA Braunschweig. Official Test Report according to 1200/057/15 DIN EN 13956 MPA Braunschweig.
Width (minimum)	250 mm. 525 mm. 1050 mm. 1500 mm. Manufacturer guidance Koster TPO single ply roofing membrane, roll widths.
Minimum	2 mm. Manufacturer guidance KÖSTER TPO single ply roofing membrane.
Colour	Light grey (RAL 9018). Slate grey (RAL 7018). Other. Manufacturer guidance KÖSTER TPO single ply roofing membrane.

Sustainability data

Contains Red List materials	No
Country of material origin	Germany Guidance for specification option: KÖSTER TPO single ply roofing membrane only.
Country of product manufacture	Germany Guidance for specification option: KÖSTER TPO single ply roofing membrane only.
Recyclability	100%
Recycled content As defined in clause 7.8 of BS EN ISO 14021	5 % Guidance for specification option: Each roll has 5% recycled TPO from manufacturing offcuts.