Local chimney crown repair in Corner Lake

The bond break at the flue tile

The flue liner and the crown move differently. The liner heats and grows when the fireplace runs, while the crown around it stays cooler. If the crown is poured tight against the liner, that movement cracks the crown outward from the flue.

Section R1003.9.1 of the Florida Building Code, Residential, wants a caulked bond break at the flue liners, done to ASTM C1283. Our crew keeps a new crown separate from the liner and finishes the joint with a flexible sealant, so the two parts can move without breaking each other.

A clean joint at the flue also makes later work easier. When the liner or cap needs attention down the road, the break lets the crown stay in place. A crown cast tight against the tile often has to be broken out just to reach the liner.

Crown work on tall and two-story chimneys

A tall chimney on a two-story home, or one rising well above a steep roof, needs more planning. Ladders have to reach safely, and the crew needs a stable place to stand while working on the crown for hours.

The estimate notes how we plan to reach your chimney, so access is never a surprise on the day of the job. If extra equipment is needed, it is written on the estimate before you approve the work.

Taller chimneys also catch more wind and weather, so their crowns work harder. When we rebuild a crown on a tall chimney, the overhang and drip get extra attention. The goal is the same as anywhere else, a top that sheds water and stands up to the weather.

What you receive when the crown work is done

At the end of the job we show you the finished crown and explain what was done. You get the product names, the cure time before the next fire and any care instructions in writing.

If we noticed anything else on the chimney that needs watching, it goes on the same sheet. You will know what was fixed, what was left alone and why, long after the ladder comes down.

The handover sheet is useful later too. If you sell the house, it shows a buyer's inspector what was done and when. If a question comes up down the road, you have the product names and the scope in one place.

What our technician checks on a crown

A crown inspection is more than a glance at the top. Our technician looks at the surface, taps for hollow areas, checks the edges and drip, watches how the top drains and examines the joint at each flue.

Everything goes into a written summary in plain language, with a recommendation for each finding. The inspection is free, and so is the estimate.

The inspection also covers the brick at the top of the chimney and the cap. If anything outside the crown needs attention, we tell you, and it shows up as a separate line on the estimate so you can decide.

• Surface cracks and how deep they run
• Hollow or loose sections
• Edges, corners and the drip line
• Sealant and bond break at each flue