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InspectAPedia ® Home STRUCTURAL INSPECTIONS & DEFECTS ARCHITECTURE & BUILDING COMPONENT ID BASEMENT WATERPROOFING CARPENTER ANTS CARPENTER BEES CHIMNEY INSPECTION DIAGNOSIS REPAIR COLUMNS & POSTS, DEFECTS CONNECTORS, FASTENERS, TIES CRAWL SPACES DECK & PORCH CONSTRUCTION DEFINITIONS of Mobile Home, Doublewide, Modular, Panelized DEFINITIONS of ENGINEERED WOOD OSB LVL etc DISASTER BUILDING INSPECTION & REPAIR EARTHQUAKE DAMAGED FOUNDATIONS FIRE DAMAGE vs MOLD DAMAGE FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP FOOTING & FOUNDATION DRAINS FOUNDATION CRACKS & DAMAGE GUIDE FRAMING DAMAGE, INSPECTION, REPAIR GRADING, DRAINAGE & SITE WORK HOUSE PARTS, DEFINITIONS INSECT INFESTATION / DAMAGE KIT HOMES, Aladdin, Sears, Wards, Others LOG HOME GUIDE MOBILE HOMES, DOUBLEWIDES, TRAILERS MODULAR HOME CONSTRUCTION MOISTURE CONTROL in BUILDINGS PANELIZED CONSTRUCTION PORCH CONSTRUCTION & SCREENING PRE-CUT & KIT HOMES RAILINGS, STAIRWAY RETAINING WALL DESIGNS, TYPES, DAMAGE ROT, FUNGUS, INSECT DAMAGE SHEATHING SINKHOLES, WARNING SIGNS SINKING BUILDINGS STAIRS, RAILINGS, LANDINGS, RAMPS STRAW BALE CONSTRUCTION STRESS SKIN INSULATED PANELS STRUCTURAL WOOD ASSESSMENT TERMITES TIMBER FRAMING, ROT TIMBER ASSESSMENT TRUSSES, Floor & Roof WATER ENTRY in BUILDINGS WOOD FOUNDATIONS    More Information |
This article lists significant Floor Structure defects, definitions, and home inspection education topics. This article series, beginning at BUILDING DEFECTS LISTS, provides lists of common building defects and basic defect knowledge that also outline recommended curriculum content for home inspector education. The building defects and inspection points listed in these articles also guide homeowners and home buyers to building areas that merit careful attention and often point areas of safety concern or important maintenance and repair tasks. Green links show where you are. © Copyright 2013 InspectAPedia.com, All Rights Reserved. Author Daniel Friedman. Home Inspection Education Curriculum - Structure, FloorsReaders should see STRUCTURAL INSPECTIONS & DEFECTS for our complete list of articles on this topic. Also see HOME & BUILDING INSPECTORS & INSPECTION METHODS. Use the Search Box at the top or bottom of these pages to find in-depth information about building, energy savings, and indoor environment inspection, diagnosis and repair at this website. Watch out: these inspection lists do not list all possible defects for the systems discussed, and not all home or building inspectors will examine all of the items listed here. CONTACT us to suggest corrections or additions to articles at this website. Building Floor Structures: List of Typical DefectsSILLS, Typical Defects BEAMS, Typical Defects
• Anchor nuts missing • Concentrated loads • Anchor washers missing • Inadequate lateral support • Anchor bolts too short •Missing beams or sections of beams • Anchor bolts not secure in foundation • Notches or holes • Anchor bolts missing • Poor bearing, crushed or loose shims • Anchor nuts not tightened • Poor connections of built-up components • Anchors not centered in sill • Prior repairs • At or below grade level • Rot, insect or fire damage • Crushed • Rotated or twisted beams • Gaps under sills • Rust • Missing • Sag • Rot, insect or fire damage • Weak connections to joists • Sill split at anchor bolts • Weak connections to columns COLUMNS OR PIERS, Typical Defects JOISTS, Typical Defects • Buckling • Concentrated loads • Crushed • Inappropriate notching or holes • Heaved • Ineffective blocking, bracing or bridging • Leaning • Missing • Mechanical damage • No blocking, bracing or bridging • Missing • Poor end bearing, joist hanger connections • Missing footing? • Prior repairs • Mortar deterioration • Rot, insect or fire damage • Poorly secured at top or bottom • Sag or springy • Prior repairs • Split or damaged • Rot, insect or fire damage • Weak cantilevers • Settled • Weak mortise and tenon joints • Spalling concrete or brick • Weak openings (stairs, chimneys, etc.) JDG (overspanning)
SUBFLOORING, Typical Defects CONCRETE SLABS, Typical Defects • Concentrated loads • Cracked • Cracking ceramic tiles • Heaved • Damaged or cut • Hollow below slab • Plywood in wrong orientation • Rusted re-bar • Poor fastening (nailing, screwing, gluing) • Settled • Poor end support or cantilevered • Shaling • Prior repairs • Spalling • Rot, insect or fire damage • Sag or springy • Squeaks • Swollen waferboard • Inappropriate material utilization JDG
Readers should see STRUCTURAL INSPECTIONS & DEFECTS for our complete list of articles on this topic. Also see HOME & BUILDING INSPECTORS & INSPECTION METHODS. Use the Search Box at the top or bottom of these pages to find in-depth information about building, energy savings, and indoor environment inspection, diagnosis and repair at this website. Watch out: these inspection lists do not list all possible defects for the systems discussed, and not all home or building inspectors will examine all of the items listed here. CONTACT us to suggest corrections or additions to articles at this website. These curriculae and building defect lists are based on smilar curriculum documents first prepared by Joe Scaduto, an ASHI member who prepared course material for Northeastern University's Building Inspection Certificate program in 1988, subsequently by DF, InspectApedia's editor, for New York University ca 1988 and later, with others, recommended to ASHI, the American Society of Home Inspectors. ASHI did not adopt this material though currently that association as well as others offer extensive HOME INSPECTOR EDUCATION material. The curriculum and lists of defects are informed by additional analysis of the process of home inspection that was developed beginning Calgary, AB for Canadian and U.S. home inspector education and certification examinations in 1997. Other early contributors to home inspection education in the U.S. and Canada include Dr. Jess Aronstein, Alan Carson, Mike Casey, Mark Cramer, John Cox, Dwight Barnett, Douglas Hansen, Rick Heyl, Larry Hoytt, Bill Merrill, Kevin O'Malley, Dennis Robitalille, Keith Peddie, Pat Porzio, Roger Robinson. Frequently Asked Questions (FAQs)... Ask a Question or Search InspectApediaUse the search box below to ask a question or to search the InspectApedia.com website. Ask a Question or Enter Search Terms in the InspectApedia search box just below. Technical Reviewers & ReferencesRelated Topics, found near the top of this page suggest articles closely related to this one.
Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair
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Carson, Dunlop & Associates Ltd.,
The Home Reference Book - the Encyclopedia of Homes