Crawlspaces
Why Some Fireplaces Can Be Unsafe
Common Problems:
Use of "mix and match" components
Unsealed gas pipe penetrations
Insufficient clearances between fireplaces and combustible materials
Missing or incomplete installation of fire stops between floors
Use of non-approved decorative chimney terminations
Insufficient chimney height
Potential Damage:
Fire hazard
Voiding of manufacturer's guarantees
Embers may escape into framed areas
Inadequate fire protection
Smoke may enter living spaces
Proper Solutions/Construction:
Use approved laboratory-tests (i.e. Underwriters Laboratories, Inc.) components by a single manufacturer
Use refractory (fireproof) cement to seal gas pipe penetrations through the firebox
Follow manufacturer's installation instructions regarding required clearances from framing and other combustible materials.
Use only approved, listed, decorative chimney terminations
Use the "2ft. in 10-ft. height rule" for chimney heights (Uniform Building Code, Section 3703(f) & Table 37-B)
Information provided by Building Analysts, a full-service architectural and engineering firm with many years of experience in construction litigation. Their services include: architectural and structural investigations, repair recommendations, preparation of exhibits and expert testimony. Contact Building Analysts Toll Free at: (800) 352-1497.