The Role of Raintite
Your chimney is a porous masonry structure that is constantly exposed to rain, snow, and high humidity. These weather conditions lead to chipping, flaking, and cracking. Unlike other waterproofing agents that merely coat the surface, Raintite’s unique formula penetrates deep into the pores, bonding with the masonry and repelling moisture from the inside and out with unparalleled protection.

When to Apply Raintite
For optimal results, apply Raintite after making masonry repairs, including filling in any cracks and ensuring a clean surface. Also, avoid application when there’s a chance of rain within the next 24 hours.
The Advantages of Making Your Chimney Raintite
Invest in the longevity of your chimney and your property’s value by protecting it with Raintite. Unlike surface-level protectants, Raintite’s unique vapor-permeable formula deeply penetrates and bonds with the masonry, providing long-lasting protection against moisture intrusion. It effectively locks out water without trapping moisture inside. By maintaining breathability, Raintite prevents internal damage caused by trapped moisture, making it a valuable investment.
Benefits at a Glance
- 100% vapor permeable
- Sub-surface protection
- Prolongs chimney lifespan
- Safe for use on Cinderblock, Stucco, and Limestone surfaces
Raintite is a durable, cost-effective, and water-repellent solution ideal for a wide range of applications, including chimneys, basement walls, and other similar structures.
How Raintite Works
Raintite works differently. Its unique formula penetrates deep into the masonry substrate, bonding with the minerals to create a durable barrier that locks out rain, snow, and ice. Raintite is 100% vapor permeable, allowing moisture vapor to escape. This “breathing” prevents moisture from becoming trapped inside, which could otherwise cause internal damage to the structure.
Common Masonry Problems to Avoid
The constant absorption and freezing of moisture within masonry can lead to a host of expensive and unsightly problems, including:
- Spalling: the flaking and crumbling of bricks.
- Mortar decay: the deterioration of mortar joints, leaving gaps in the chimney.
- Loose bricks: Mortar decay can cause the bricks to become loose or even fall off the chimney.
- Efflorescence: white, chalky residue that appears on the surface as moisture dries out, leaving behind salt deposits.

By creating a deep, protective barrier, Raintite helps maintain the structural integrity of your chimney and prevents these common forms of deterioration, saving you from costly repairs and rebuilding.
Where to Buy Raintite® Near Me
Don’t just waterproof your chimney – make it Raintite. Raintite® is available exclusively for professional use. If you’re a hearth dealer or a chimney sweep looking to elevate your services as an authorized installer, or if you’re a homeowner in need of a certified installer, we invite you to contact Approved Industries today.