Flexibility Matters: Why Evercrown’s Elasticity Wins Against Thermal Expansion
The chimney crown is typically made of concrete. However, as temperatures fluctuate throughout the day, the surface expands and contracts, which can lead to fissures or cracks. You might see these cracks in places like your entryway and driveway. When water seeps into these cracks, it causes further damage to the structure. Traditional mortar repairs that fill the gaps in the chimney crown are also vulnerable to thermal expansion. In contrast, Evercrown® is made from a completely different substrate. It combines the durability of concrete with the elasticity of rubber, which absorbs stress from thermal expansion.
What is Evercrown®?
Evercrown® is a professional-grade, proprietary bonding compound specifically formulated to repair and protect masonry chimney crowns. Unlike standard mortar, which can crack and erode, Evercrown® offers the flexibility of rubber with the durability of concrete. It offers the ultimate protection against harsh winters and hot, humid summers.
How to Repair with Evercrown®
Repairing a crown with Evercrown® is a straightforward process that provides immediate results.
- Preparation: Clean the chimney crown surface of any loose debris, moss, or scale.
- Patching: Large cracks (up to 1/4 inch) should be filled with the compound first.
- Application: Using a trowel, a generous layer of Evercrown® is spread evenly across the entire surface of the crown.
- Curing: The material is applied like cement but cures into a tough, elastic membrane that bonds permanently to the masonry.
Benefits of Evercrown®
Evercrown® is a professional-grade coating formulated explicitly for long-term, durable crown repairs. It offers:
- Unmatched Flexibility: Its elastic properties allow it to absorb the stress caused by thermal expansion and contraction, preventing the “spider-web” cracking common in traditional concrete chimney crowns.
- Ultimate Waterproofing: It creates a strong waterproof shield that stops water, snow, and ice from reaching the porous masonry underneath.

- UV Protection: Formulated to resist the sun’s UV rays, Evercrown® won’t become brittle or degrade after years of exposure to direct sunlight.
- Generous 10-Year Warranty: Every professional application is backed by a limited 10-year warranty, providing homeowners with peace of mind and long-lasting protection.
Where to Buy Evercrown® Near Me
Evercrown® is the fast, cost-effective option for repairing cracked masonry crowns from Approved Industries. This professional-grade solution is specially formulated to protect against thermal expansion and harsh weather conditions. Its 10-year limited warranty is a testament to its effectiveness for durable, long-term chimney crown repairs. Visit our website to find a certified installer near you and browse our complete line of advanced ceramic coatings and thermal protective systems.