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Waterproofing

KingProof TPO150®

High-quality FPO/TPO reinforced roofing membrane.

SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.

Tensile strength L/T EN 12311-2 A
≥ 1050 N/50 mm
Elongation L/T EN 12311-2 A
≥ 15%

Overview

KingProof TPO150 is a flexible FPO/TPO roofing membrane composed of thermoplastic polyolefins and reinforced with a polyester fabric. It is offered in a range of thicknesses to meet different project requirements.

The unique composition of KingProof TPO150 gives a membrane that is soft and flexible at low temperatures while maintaining excellent high-temperature properties. It is hot-air weldable and designed to perform in a wide range of climatic conditions, for mechanical fastening on flat or low-sloped roofs, and offers exceptional resistance to environmental, chemical and biological factors.

KingProof TPO150 is resistant to UV radiation and can be used as an exposed roofing membrane or as a protected system for extensive green roofs.

Where to use

KingProof TPO150 is designed for the waterproofing of a variety of roof types, both exposed and covered, including:

  • Green roof systems
  • Roofs with solar-panel installations
  • Ballasted roof systems
  • Reflective cool roofs
  • Open, fully exposed roof surfaces
  • Terraces

Why use it

  • UV-resistant
  • High wind-load resistance
  • Excellent weathering and environmental resistance
  • Strong joints achieved through hot-air welding
  • Compatible with bitumen-based roofing systems
  • Available in different thicknesses
  • Resistant to root penetration – ideal for green roofs and landscaping
  • Provides energy savings and improves solar-panel output
  • Recyclable, with a low carbon footprint
  • No open-flame welding, enhancing safety during installation

Technical properties

TPO150-1.2TPO150-1.5TPO150-1.8TPO150-2.0
ColourWhite, grey-white, light grey, silver grey, dark grey
Thickness (EN 1849-2)1.2 mm1.5 mm1.8 mm2.0 mm
Mass per unit area (EN 1849-2)1.5 kg/m²1.9 kg/m²2.1 kg/m²2.3 kg/m²
Tensile strength L/T (EN 12311-2 A)≥ 1050 N/50 mm
Elongation L/T (EN 12311-2 A)≥ 15%
Water tightness (EN 1928 A)Pass (10 kPa)
Water-vapour resistance, Sd (EN ISO 12572)250 m320 m380 m430 m
Impact resistance (EN 12691 A)≥ 500 mm≥ 600 mm≥ 800 mm≥ 1000 mm
Static load resistance (EN 12730 C)≥ 20 kg
Tear resistance L/T (EN 12310-2)≥ 400 N≥ 400 N≥ 400 N≥ 500 N
Joint peel resistance (EN 12316-2)≥ 600 N/50 mm
Joint shear resistance (EN 12317-2)≥ 800 N/50 mm
Foldability at low temperature (EN 495-5)≤ -25°C
Exposure to UV (EN 1297)Pass ≥ 5000 h
Radon-gas resistance (SP 3873)2.8×10⁸ s/m3.5×10⁸ s/m4.2×10⁸ s/m4.7×10⁸ s/m
External fire performance (EN 13501-5)BROOF (t1)BROOF (t1,t2,t3)BROOF (t1,t2,t3)BROOF (t1,t2,t3)
Reaction to fire (EN 13501-1)Class E
Dangerous substancesNone

MDV = manufacturer’s declared value; MLV = manufacturer’s limiting value. Values L/T are longitudinal / transverse.

Standards and approvals

KingProof TPO150 complies with EN 13956 as per the technical properties table.

How to use

Method of use

KingProof TPO150 must be installed by experienced and qualified personnel.

Surface Preparation

Concrete roofs to receive KingProof TPO150 must be sufficiently cured and dry. Remove any poorly attached materials or contamination. The surface should be flat and free from sharp objects, abraded, plain and free of rock pockets, cracks, sharp gratings and nibs. Roof areas should have a continuous slope towards the water outlets; a slope of at least 1:40 is recommended.

Separation and Protection Layers

Protection layers are used to separate incompatible products or to prevent damage. KingProof TPO150 does not require separating layers when in contact with bitumen and polystyrene, as they are fully compatible. Protective layers are mandatory over concrete and recommended over other substrates to prevent damage from rough or uneven surfaces. Suitable materials include polyester or polypropylene fleeces, or a single layer of insulation (PIR / PUR, mineral wool, XPS or EPS) applied over a vapour-control layer. Above the membrane, a protective layer is required in ballasted systems; in green roofs the drainage or water-retention layers typically serve this function.

Application

Unroll each membrane sheet in the intended direction. Straighten and tighten the sheet to eliminate wrinkles, ensure it lies flat and fix the ends to keep the membrane in place.

For exposed roof systems, mechanically fix the membrane along one longitudinal edge, placing the fixings 30 mm from the edge of the sheet to provide stability for welding and prevent movement. Lay the next sheet with a minimum overlap of 120 mm onto the first, using the pre-marked guideline 110 mm from the edge for accurate, consistent alignment. In protected (ballasted) roof systems no fasteners are required and the overlap may be reduced to ≥ 80 mm.

Welding

Use an automatic hot-air welding machine with a 40 mm nozzle and a temperature range of +400°C to +600°C. First create a pre-weld line by fixing the upper sheet approximately 50 mm from the edge, then perform the main weld over the remaining 40 mm width of the overlap, moving the welder and silicone roller in a slow, continuous motion for consistent heat and pressure. Once cooled, inspect the welded seams for continuity and strength and re-weld any defective areas.

Quality and care

All products originating from KingKrete’s facility are manufactured under a management system independently certified to conform to the requirements of the quality standards ISO 9001, ISO 14001 and ISO 45001.

Limitations and notes

Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local KingKrete representative. KingKrete Inc. reserves the right to have the true cause of any difficulty determined by accepted test methods.

Coverage, packaging and storage

Packaging

GradeWidthLengthRoll
TPO150-1.21.60 m20 m32 m² / 48 kg + core
TPO150-1.51.60 m20 m32 m² / 61 kg + core
TPO150-1.81.60 m15 m24 m² / 50 kg + core
TPO150-2.01.60 m15 m24 m² / 55 kg + core

Storage

KingProof TPO150 rolls must be stored in their original packaging, away from direct sunlight, in cool, dry, frost-free conditions. Store horizontally on a pallet and avoid placing pallets of rolls on top of one another. Shelf life is 5 years under these conditions.

Health and safety

KingProof TPO150 should be welded in a well-ventilated area. As with all construction products, avoid contact with the eyes and skin and wear suitable protective equipment. For further information, refer to the Safety Data Sheet.

Request the safety data sheet