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EXTERIORS of buildings
ALGAE, FUNGUS, LICHENS, MOSS
ART CONSERVATION - Cultural Heritage and Aerobiology
ARTWORK MOLD CONTAMINATION
BOOKSTORE - EXTERIORS
CAULKS & SEALANTS, EXTERIOR
DECK FINISHES COATINGS PRESERVATIVES
EIFS & STUCCO EXTERIORS
EXTERIOR WALL SIDING TRIM & FINISHES
FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP
LEAD POISONING HAZARDS GUIDE
LEAD PAINT REMOVAL ALTERNATIVES
LEAD PAINT REMOVAL TROUBLES
PAINT & STAIN GUIDE, EXTERIOR
SLIDE PREPARATION, MICROSCOPE
STAIN & BIODETERIORATION AGENT CATALOG
STAINS on & in BUILDINGS, CAUSES & CURES
STAIN DIAGNOSIS on BUILDING EXTERIORS
STAIN DIAGNOSIS on BUILDING INTERIORS
STAINS & FINISHES, INTERIOR
STUCCO PAINT FAILURES
TEST KITS for DUST, MOLD, PARTICLE TESTS
TRIM, EXTERIOR CHOICES, INSTALLATION
VAPOR BARRIERS & CONDENSATION in BUILDINGS
WALL SIDING TRIM & FINISHES
WALL FINISHES INTERIOR
This article explains two common causes of painting failure: taking shortcuts in the paint job and painting over moisture. We include photos and explanation of clues that can indicate that the paint job failed due to certain "short cuts" or due to painting over surfaces that were not sufficiently clean and dry.
This article series reviews common building exterior & interior painting mistakes, describes how to diagnose paint failures on buildings, and outlines a procedure for diagnostic field inspection & lab testing of failed painted surfaces. We include photographs of paint failures on buildings and more photos of forensic paint laboratory examination of samples of failed paint useful to assist in diagnosing the probable cause of each type of paint failure.
Our page top photo shows another painter's shortcut: skim-coating with crack filler was applied over the entire building as a substitute for removing old and loose paint. The new paint job cracked and failed in just a few months. Readers should also see Paint Failure Case Photographs-SITE and then Paint Failure Case Photographs-LAB, and see PAINT & STAIN GUIDE, EXTERIOR for a guide to the selection and proper application of paints and stains on exterior wood surfaces.
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PAINT OVER MOISTURE - Painting Over Improper Surface Moisture or Painting Under Other Improper Weather Conditions
Painting on High pH Surfaces such as New Stucco
Painting too soon over new stucco exteriors or on a building where stucco was not properly mixed, applied, or cured can lead to early paint failure and efflorescence. See PAINT on STUCCO, FAILURES for details.
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Technical Reviewers & References
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Paint & Fiber Forensic Analysis, Diagnosis, Conservation