Two Different Approaches to Exterior Protection
CorkSol and traditional wall coatings both protect your home's exterior and offer insulating benefits, but they're built from very different materials with different strengths.
| CorkSol | Pinnacle Wall Coating | |
|---|---|---|
| Material | Cork-based, natural | Resin-based, engineered |
| Typical lifespan | 10–15 years | ✓ 20 years, guaranteed |
| Flexibility | ✓ Naturally flexible | ✓ Engineered for flexibility |
| Thermal insulation | ✓ Strong, natural property | ✓ Insulating fillers reduce heat loss |
| Weather resistance | Performance varies with exposure | ✓ Consistent across conditions |
| Guarantee | Typically shorter-term | ✓ Full 20-year guarantee |
What Is CorkSol?
CorkSol is a spray-applied coating made from finely ground cork particles suspended in a binding solution. Because cork is a natural material, it offers genuine thermal insulation and flexibility, and it's often marketed on its sustainability credentials as a renewable resource.
Where a Resin-Based Coating Has the Edge
Cork's natural flexibility is a real strength, but it comes with a trade-off: cork-based systems typically need touch-ups or reapplication after 10 to 15 years, and how well they perform can vary more with exposure and weather conditions than an engineered resin system. Our wall coatings are formulated specifically for consistent performance across the full range of UK weather — heavy rain, frost, coastal salt, and prolonged UV exposure — which is why we can back every job with a full 20-year guarantee rather than a shorter-term one.
Insulation: Both Offer Real Benefits
Both CorkSol and our resin coatings genuinely improve a property's thermal performance. Cork achieves this naturally through its cellular structure; our coatings use insulating fillers within the resin formulation to reduce heat loss through the wall. In practice, homeowners see a meaningful reduction in heat loss with either option — the difference comes down to longevity and consistency of protection over time.
Which Should You Choose?
If sustainability credentials are your top priority and you're comfortable with a shorter guarantee period, CorkSol is a legitimate option. If you want the longest possible guarantee, the most consistent weather protection, and a system proven across thousands of UK properties, a Pinnacle wall coating is the stronger long-term choice.