The waterproofing properties of Trinidad Lake Asphalt, the basis of Neuchatel Mastic Asphalt, was first discovered by Sir Walter Raleigh in the 1700s who used it to waterproof his fleet for the journey back to the old world. Over the centuries, its use has exploded into all facets of construction and today, it’s still the most favoured option for waterproofing, especially for roofs, decks, carparks and high-rise buildings.
“Although it has been refined over the years, it’s still essentially the same product that was first used back in the 1700s,” Neuchatel’s CEO, Brian Mohan says. “Today, there are more complex polymers added to optimise the products for specific uses such as on roads and carparks.”
Mastic Asphalt, when applied correctly, is completely impervious to water and will usually last the lifetime of the building. “When you pour mastic asphalt, it’s a very viscous liquid so it creates a single layer which is totally impermeable to water,” Mohan says. “The viscosity of the material even after it has set, absorbs vibration and movement without cracking, which is a distinct benefit compared to rigid alternatives.”