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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 describes how to use more thorough, invasive measures (removing paint, making test openings, scratch test, peel test, solvent tests) to diagnose the cause of exterior & interior painting mistakes. This article series 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.
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.
The examples use building exterior paint failures (and remedies), but many interior paint failures are similar their origin and cure, including general information provided by some paint manufacturers, home improvement suppliers, and by National Forest Products Laboratory experts.
The diagnosis and cure of paint failure on buildings, particularly on wood siding and trim, is quite possible if there is a careful and thorough inspection of the building, its history, its surfaces, and the actual points of paint failure. It is diagnostic to compare the same coating on the same type of surface at different locations on a building and in areas of failed and not-failed paint.
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FAILURE INDICATORS - List of Paint Failure Indicators That Can be Observed Where Demolition is Allowed
If you are able to use invasive methods such as removing siding or cutting openings into wall cavities from a building interior, the diagnosis of cause of failing paint on building surfaces can be supported by very strong evidence. Here is a list of what to look for when using modest demolition or invasive building diagnostic methods:
Our most exhaustive list of paint failure types is at PAINT FAILURE DICTIONARY.
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Technical Reviewers & References
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