Insulating coatings
An insulating refractory layer can slow heat transfer through the chamber walls which matters in older homes.
A cracked, rough or stair-stepped smoke chamber in Swedesboro can be repaired by parging it smooth with a heat-rated refractory mortar which cuts down on creosote buildup and closes gaps that heat could travel through. Dial (856) 490-5006 to talk with a local sweep about your fireplace.
Every masonry fireplace has a smoke chamber, the tapered section that connects the firebox opening to the flue liner. Behind the damper is a flat smoke shelf, which deflects downdrafts and collects whatever drops from above. Because it is hidden above the damper, most homeowners never see it unless a sweep points it out.
Builders often shaped the chamber by setting each row of brick a little further in, leaving a rough, stair-stepped surface. The edges catch soot and creosote, and the rough walls slow the draft. Building codes such as the International Residential Code call for the inside of a smoke chamber to be parged smooth, which is why inspectors flag a bare corbeled chamber.
Heat, moisture and time also break down the mortar in this area. Open joints and cracks let heat and flue gases move into the masonry behind, and in some homes wood framing sits close to the outside of the chamber. NFPA 211, the standard chimney inspections follow, treats those gaps as defects to repair.
Smoke Chamber Repair is often paired with firebox repair and chimney damper repair, depending on the cause.
Need smoke chamber repair in Swedesboro? Call (856) 490-5006 to talk to a local chimney sweep.
Call nowMost smoke chamber repairs follow the same basic steps, whatever the age of the fireplace.
The flue, smoke chamber and smoke shelf are swept and scraped. A clean surface is what lets the new material hold.
A camera is often run through the damper to record the walls, joints and the bottom of the flue. That shows how much of the chamber needs work.
Loose mortar is raked out and open joints are filled with heat-rated mortar. Large voids are filled first so the parging goes on evenly.
Heat-rated parging material is built up over the corbels until the walls form a smooth slope. Insulating products also slow heat moving into the masonry.
New parging is left to cure, and the first fires should be small. Easing into the first fires helps the coating heat-set without cracking.
An insulating refractory layer can slow heat transfer through the chamber walls which matters in older homes.
Cracked shelf masonry is repaired to help the fireplace draft.
Loose brick near the damper is reset so the damper sits firmly.
Open joints are cleaned out and refilled with heat-rated mortar to close the gaps heat could follow.
Corbeled brick is covered with a smooth heat-rated layer so smoke flows freely.
Smoke chamber parging is the process of coating the inside walls of the smoke chamber with a smooth layer of refractory mortar. Done right, it leaves the chamber easier to clean and better at moving smoke. Application methods vary, but most build the coating up in layers rather than one thick coat.
When you call (856) 490-5006 from Swedesboro, it helps to have your inspection report on hand if the smoke chamber was flagged. It is fair to ask which material will be used and how thick it will be. Regular mortar or a thin cement wash is not a substitute for proper refractory parging.
In Swedesboro, it is common to find older masonry fireplaces with corbeled smoke chambers that were never parged. In Swedesboro and communities nearby including Beckett, Mullica Hill, Gibbstown and Woodstown, wet weather and freeze-thaw cycles also take a toll on chimney mortar, including the joints above the damper, which makes the start of fall a good time to have the smoke chamber looked at.
For smoke chamber repair in Swedesboro, NJ or nearby towns like Beckett, Mullica Hill, Gibbstown and Woodstown, call (856) 490-5006 to reach a chimney sweep who covers your street.
Cold winters keep fireplaces, wood stoves and oil burners working for half the year or more. Masonry takes the worst of it from the freeze and thaw cycle: rain and melting snow soak into the crown and joints, then freeze and push them apart, and each winter widens the cracks a little more. Wind driven rain from coastal storms finds any gap in flashing, too. That is why chimney cleaning in Swedesboro is usually booked in the fall, before the first cold night.
Small chimney problems caught early usually stay small repairs.
Chimney sweeps in Swedesboro know the chimneys and fireplaces common in local homes.
Ask your questions before you agree to anything.
More questions? Call (856) 490-5006
Repairing cracked firebrick, open mortar joints and worn refractory panels so the fire stays contained inside the masonry.
Learn moreRepairing dampers that will not open, close or seal including handles, chains and seals.
Learn moreFixing gaps, cracks and missing mortar inside the flue liner with resurfacing, joint repair or partial replacement.
Learn moreAn annual look at the flue, firebox, damper, crown and cap so you know whether it is safe to light a fire.
Learn moreLooking for something else?
See all chimney servicesCall (856) 490-5006 to talk to a chimney sweep serving Swedesboro, NJ.
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