The National Fire Protection Association (NFPA) 211 Standard For Chimneys, fireplaces, vents, and solid fuel burning appliances 2010 edition states that the inner surfaces of the smoke chamber shall be parge coated smooth, with an insulating refractory mortar. All national building codes now specify the use of refractory mortar conforming to ASTM C-199 for installing firebrick and clay flue linings in masonry fireplace and chimney construction. This includes the International Code Council (formerly BOCA, ICBO, SBCCI), the International Residential Code, and the National Fire Protection Association. Several codes also require the refractory mortar to be non-water soluble.
Call Portland Fireplace and Chimney today for a 21 point inspection and video scan! Remember, A CHIMNEY CANNOT BE INSPECTED PROPERLY WITH A FLASHLIGHT. The standard for chimney inspections includes having a camera run through the length of the flue. (503) 758-4710