OverviewThe GOAT is a flexible, solvent-free reactive polymer waterproof coating available in roller (18 kg) and brush/poured (7.5 kg) grades. The 18 kg (roller) standard-viscosity grade covers large flat areas quickly (flat roofs, balconies, terraces, basement roofs and foundations). The 7.5 kg (brush/poured) thicker grade is higher-viscosity for upstands, parapets, verticals and detail work.
Ideal For- Waterproofing large flat areas of concrete or masonry: flat roofs, balconies, terraces, basement walls, basement roofs and foundations
- Thicker grade for penetrations, connections and vertical details
How it's AppliedBrush, roller or poured (7.5 kg grade). Clean equipment with The GOAT Cleaner. Do not clean material with water.
Key Performance & Benefits- Can be applied to damp surfaces and down to 0°C (handles both positive and negative water pressure)
- UV resistant and can be left exposed
- Fast-drying, solvent-free, VOC-free, free of isocyanates
- Crack-bridging and elastic; retains characteristics after long and direct contact with water; resistant to freeze-thaw cycles
Which colour?- White — solar reflective roof (cool-roof white; reflects sun to keep roof surfaces significantly cooler)
- Black — classic roof finish; suitable for overlaying felt and asphalt roofs
- Grey — architectural finish for walk-on balconies, terraces and visible details
- Every colour uses the same certified membrane underneath with the same assessed working life
Tested & Certified — European Technical AssessmentThe GOAT is a CE-marked, liquid-applied roof waterproofing kit, independently assessed under ETA-25/0471 (EAD 030350-00-0402). Key assessed items:
- 25-year assessed working life (category W3)
- External fire performance BROOF(t1) (EN 13501-5)
- Watertight — assessed for roofs, terraces and balconies
- Wind load resistance >50 kPa
- Impact & load resistance — dynamic P3, static P4 (special) on concrete
- Suitable for all roof slopes S1–S4 (<5% to >30%)
- Surface temperatures −20°C to +80°C (TL3 / TH4)
- System includes corner band and NW MESH T30 for joints, corners and crack bridging
Performance data- Watertight — no mass uptake at 150 kPa (EN 14891)
- Crack-bridging: 1.15–1.84 mm (vs. 0.75 mm required)
- Elongation: ~344% at 1.35 MPa (EN 527-3)
- Cool-roof white: 83% solar reflectance, SRI ~104, stable after 4,000 h UV
- Adhesion (EN ISO 4624): metal & CLT ~1.17 N/mm², plywood ~0.99 N/mm²; bonds to PVC & EPDM (~0.32 N/mm²) for roof refurbishment
Advantages- High adhesion to concrete blocks, bricks, concrete, plastics, and various metals
- Crack-bridging elastic membrane
- Works for positive and negative water pressure
- Retains characteristics after prolonged water contact
- Resistant to freeze-thaw cycles
- Solvent-free, VOC-free, UV resistant, fast rain resistant, quick drying
- Can be used on damp surfaces
- Free of isocyanates
Uses & Substrates- Concrete blocks / bricks
- Concrete
- Plastics (various)
- Various metals
- PP, PE, PVC-U
- Roofing insulation boards (PUR, PIR, XPS, EPS)
Application- Apply with suitable brush or roller in 1 or 2 layers (18 kg roller grade for large areas)
- 7.5 kg grade can be brush-applied or poured for verticals and details (thicker, non-slumping)
- Clean tools with The GOAT Cleaner; do not use water to clean product residues
Technical Data (highlights)- Product collection: The GOAT
- Applied by: Brush or Roller (roller grade for large areas; brush/poured grade for details)
- Sizes: 18 kg (Roller) and 7.5 kg (Brush / Poured)
- Colours: Black, White (solar reflective), Grey
- Coverage: ~2 kg per m² (indicative)
- 25-year assessed working life (W3)
- Temperature range: surface −20°C to +80°C
- Wind load resistance: >50 kPa
- Elongation: ~344% at 1.35 MPa
- Crack bridging: 1.15–1.84 mm
Related guides & educational resources- What Does an ETA Mean? The GOAT Roofing Membrane Explained
- Why White GOAT is Solar Reflective Gold Roofing Membrane
- Goat Liquid Roofing Membrane – Solar Reflective White
- Dubai Cool Roof Case Study: Up to 30–45% Cooler with The GOAT
- Damp Proofing Vs Waterproofing: What is the Difference?
- Five Things About Waterproofing
- NHBC Standards 2023: Waterproof Membranes as a Tanking System
NoteSystem documentation is available (technical datasheet, install guide, safety data sheet, ETA, external fire performance data).
Technical characteristics / specifications- Model / range: The GOAT
- Grades: 18 kg (Roller) standard-viscosity; 7.5 kg (Brush/Poured) thicker grade
- Composition: Solvent-free reactive polymer (VOC-free, isocyanate-free)
- Coverage: approx. 2 kg/m² (dependent on substrate and application)
- Working life (assessed): 25 years (ETA category W3)
- External fire classification: BROOF(t1) (EN 13501-5)
- Wind resistance: >50 kPa
- Impact/load resistance: dynamic P3, static P4 (on concrete)
- Crack-bridging capacity: 1.15–1.84 mm
- Elongation: ~344% at 1.35 MPa
- Adhesion (EN ISO 4624): metal & CLT ~1.17 N/mm²; plywood ~0.99 N/mm²; bonds to PVC & EPDM ~0.32 N/mm²
- Cool-roof white: solar reflectance ~83%, SRI ~104, UV stable after 4,000 h
- Service temperature: −20°C to +80°C
- Application temperature: can be applied to damp surfaces down to 0°C
- Application methods: brush, roller, poured (7.5 kg)
- System components: CORNER BAND and NW MESH T30 included for joints, corners and crack bridging