The Basics of Chimney Construction

  • December 13, 2023

Residential fireplace chimney construction typically involves the use of specific materials and construction techniques to ensure safety, durability, and proper function. Here’s an overview of the typical components, materials, and types of mortar used in residential fireplace chimney construction:

Chimney Components:

  • Flue Liner: This is the inner lining of the chimney that directs smoke and combustion byproducts outside. It can be made of clay tiles, metal, or other materials.
  • Brick or Masonry Structure: The outer structure of the chimney is typically made of bricks or other masonry materials. This provides structural support and insulation.
  • Chimney Crown: The top surface of the chimney, also known as the crown, protects the chimney from water and weather damage.
  • Cap: The chimney cap is installed on top of the flue to prevent debris, animals, and precipitation from entering the chimney.
  • Flashings: Flashings are metal pieces installed around the base of the chimney where it meets the roof to prevent water leaks.
  • Materials Used in Chimney Construction:
    • Bricks: Traditional clay bricks are commonly used in chimney construction. They provide durability and heat resistance.
    • Concrete Blocks: In some cases, concrete blocks may be used as an alternative to bricks, providing strength and stability.
    • Flue Liner Materials: Flue liners can be made of clay tiles, metal, or cast-in-place concrete. Each material has its advantages and is chosen based on factors such as cost, performance, and local building codes.
    • Mortar: Mortar is used to bind the bricks or blocks together. Mortar must be able to withstand the high temperatures generated by the fireplace. Type N or Type S mortar is commonly used in chimney construction.

Cliff and his crew wear amazing. Quality work for an affordable price. We had 6 estimates and Rooftop Chimney came in better than the rest. Highly recommend for honesty, explaining things well and fair price. Thank you Rooftop Chimney!

Angela Grissom


Leaving this review for my parents, who recently hired Cliff from Rooftop Chimney for a chimney repair, back in June. They were quick with an estimate, at a fair price and the work was scheduled promptly. They did an excellent job and we would definitely hire them again in the future or recommend them to friends!

Glenn Loontjens


I’m selling my house and needed the wood stove insert removed. With the closing date approaching, Rooftop Chimney was able to work me in their schedule and get the job done quickly and professionally. I got the DEQ certificate much faster than I thought I would. Thanks to Justin and his crew!!! I would highly recommend Rooftop Chimney.

Iain Mackintosh


Arrived on time – worked very hard to remove our very heavy fireplace insert and took extreme care to do the job well. Completed their work by cleaning our two chimneys and got it all done in good time. We would recommend their services to all.

Cynthia Keene


After selling our home, the inspection indicated that there was some work that needed to be done on our chimney including repairing some mortar as well as putting a top cap on the chimney. I contacted Rooftop Chimney and Roof Services. They were very knowledgeable answering all of my questions. That along with prompt professional service I would recommend them for any chimney needs you may need!

Gloria Cettina

Experiencing some Chimney Pain?Send Us Your Chimney Photos

We do give free estimates, but we have found over the years that getting photos ahead of time can speed things up dramatically. Heck, we have talked ourselves out of work by seeing photos and telling the customer “No, you do not need a several-thousand dollar rebuild; it looks like you only need a…”. It has happened.