Breathable waterproofing for chimney brick in Palmetto Bay
Earlier coatings are identified and tested, so a new product does not end up working against an old one.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Waterproofing warning signs we look for in Palmetto Bay
- Glossy patches from an earlier coating
- Damp patch on the chimney breast indoors
- Rust stains running down the brick
- An old treatment with no record kept
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Our waterproofing approach, one step at a time
Moisture from inside the chimney
Some chimney dampness comes from inside rather than from rain. Moisture can form in a flue when warm exhaust meets cool masonry, and water can rise from the ground into the base of an outside chimney. A repellent on the outside does not fix either.
In fact, slowing drying through the outer face can make an inside moisture problem worse. We look for the signs of it, such as staining high on the inside of the flue or damp low on the chimney near the ground. If the moisture is coming from within, the answer is a different repair.
Nothing below ground level
Product data for penetrating repellents usually rules out surfaces below ground. Masonry in the soil stays wet, and a repellent there cannot do its job. On an outside chimney that runs down to the ground, the treatment stops above grade.
We check how the base of the chimney meets the ground. Soil or mulch piled against the brick keeps it wet and should be pulled back. Splash from bare ground can soak the lowest courses too. Those are simple fixes, and they matter more at the base than any coating would.
How much product a chimney takes
The amount of repellent a chimney needs depends on the surface. Porous, rough brick takes more than dense, smooth brick. Mortar joints and earlier patches can take different amounts again. The test area gives a good guide.
We base the estimate on the faces to be treated and on the product's coverage for that kind of surface. We do not dilute or stretch a product to cover more. If the test shows the brick is thirstier than expected, we tell you before continuing, rather than applying less than it needs.
Avoiding hot brick during application
Product data warns that very hot surfaces reduce penetration, because the carrier evaporates before the repellent soaks in. Brick in direct sun can get hot enough for this to matter, even when the air feels mild.
We plan application for a time of day when the faces are within the product's limits. That may mean starting early or treating faces as they come out of the sun. If the surfaces are too hot, we wait rather than apply a product that will not penetrate properly.
Waterproofing line items for homes in Palmetto Bay
- Hairline separations along joint edges
- Growth and staining removed beforehand
- Named penetrating repellent and its data sheet
- Application method from the data sheet
Water repellent questions before you book in Palmetto Bay
Will the treatment change how my chimney looks?
A suitable penetrating repellent is usually close to invisible once dry. Some products darken certain brick slightly, and film formers can leave a sheen. The test area lets you judge the look first, and if you dislike it, we discuss another product or no treatment.
Does waterproofing cover the inside of the flue or the firebox?
No. The treatment goes on the outside masonry only. The flue, smoke chamber and firebox face heat and combustion gases rather than rain, and masonry repellents are not made for that exposure. Interior problems belong to a different service, and we can note what we see.
How long should new mortar cure before the treatment?
The product data decides, together with the mortar used and the weather. New work often needs cleaning before treatment as well. We schedule the repellent as its own step after the repairs, so it is not rushed onto fresh joints.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo