When the bricks face starts to flake off or “spall” the proper recommended repair is to rebuild the chimney. Rebuilding is the dismantling of the chimney brick work and relaying new brick with masonry cement. The top or crown of the chimney is finished off with a new precast concrete crown for small chimneys. Larger chimneys require a 4″ thick poured concrete crown with a two-inch drip ledge overhang.
There are many reasons for the damage to your chimney and all of our technicians are trained to help determine the cause of your chimney deterioration to help prevent this situation and hazard from happening in the future.
According to NFPA Code 211 all chimneys shall have a flue liner that can contain and exhaust all by products of combustion including heat, dangerous gases, creosote and condensation. When the flue liner can no longer perform this intended purpose it shall be repaired or replaced.
In most instances this is accomplished by using a metal pipe inserted from the top of the chimney down to the appliances. Our technicians are trained to know what type and grade of pipe is best for your chimney’s needs.
Flashing is the sheet metal that seals out water where your chimney meets or passes through the roof. It is a critical seal in making certain your chimney is weather tight. Proper flashing will be imbedded into the chimney masonry and consist of both step and counter flashing along with an ice and water shield membrane underlayment.
Flashings are custom made at the job site to insure a proper tight fitting seal between your roof and chimney. When done properly by our experts, this flashing will keep water out of your house for many years.
*Statistics are excerpted from the 2010-2012 Residential Fire Loss Estimates released by the U.S. Consumer Product Safety Commission (USCPSC). These are the latest statistics as of April 22, 2016.