Compact Liquid Waterproofing System for Small to Medium Flat Roof Areas
Arboflex Roof Kit 4 is a complete liquid-applied waterproofing system designed to cover up to 60m² of flat or low-pitched roofing. It forms a seamless, elastic polyurethane membrane that provides long-term protection against water ingress, standing water, and harsh weather exposure.
Manufactured from pure polyurethane, Arboflex PU delivers a BBA-certified life expectancy of 25 years and is applied straight from the tin. No primer is required in most cases, and existing roof coverings do not need to be removed, making it ideal for fast refurbishment projects.
Key Benefits
25-year life expectancy: independently BBA certified for proven durability.
No primer required: apply directly to most sound substrates.
Seamless and flexible membrane: adapts to joints, curves, and irregular surfaces.
Water resistant during cure: forms a waterproof barrier as it cures.
Simple application: applied by brush or roller.
Overlay system: suitable for installation over existing roof surfaces.
Low maintenance: once cured, the system requires minimal ongoing upkeep.
What’s Included (60m² Kit)
3 × 20kg Arboflex PU Liquid Waterproofing
60 × 1m² Reinforcement Matting
12 × 5kg Arboflex Topcoat
Ideal Applications
Flat and low-pitched roofs
Balconies, terraces, and foot-traffic areas
Moisture-damaged or ageing roof surfaces
Overlay applications on felt, metal, concrete, asbestos, tiles, and similar substrates
Coverage & Usage
Coverage rate: 1.5–1.8 kg/m² (depending on substrate condition)
Colour: Grey
Application tools: Brush or roller
Cured finish: Seamless, elastic, UV- and water-resistant membrane
Why Choose Arboflex Roof Kit 4?
Ideal for smaller roof areas and targeted refurbishments
No need to strip existing roof coverings
Fast installation with reduced labour costs
Long-term waterproofing performance in a compact kit
Installation Overview
Prepare: ensure the surface is clean, dry, sound, and free from contaminants.
Apply: apply Arboflex PU and embed reinforcement matting wet-on-wet where required.
Finish: once cured, apply the Arboflex topcoat to complete the system.
Need advice? Call 01268 472358 for product and system support.
Quick FAQs
Is a primer required?
No. Arboflex Roof Kit 4 is designed to be applied directly to most common roofing substrates without a primer, provided the surface is sound and properly prepared.
Can this be applied over existing roof coverings?
Yes. The system can typically be applied over existing felt, metal, concrete, asbestos, and similar substrates without removal.
How much area does this kit cover?
The kit is designed to cover up to 60m², depending on surface texture and application thickness.
How is the system applied?
The system is applied using a brush or roller, with reinforcement matting embedded wet-on-wet where specified.
Need advice? Call 01268 472358 for product and system support.
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