HOME INSPECTOR DANBURY CT - HOME INSPECTIONS YOU CAN COUNT ON - SERVICING RIDGEFIELD, NEWTOWN, BROOKFIELD, NEW MILFORD, REDDING, WILTON, WESTON, NEW FAIRFIELD, BETHEL, EASTON, SOUTHBURY - BEST HOME INSPECTORS NEAR ME
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Adjustable Steel Columns

Adjustable steel columns, also known as screw jacks and beam jacks, are hollow steel posts designed to provide structural support. An attached threaded adjustment mechanism is used to adjust the height of the post.
 
A few facts about adjustable steel columns:
  • They are usually found in basements.
  • In some parts of North America, adjustable steel columns are called lally columns, although this term sometimes applies to columns that are concrete-filled and non-adjustable.
  • They can be manufactured as multi-part assembles, sometimes called telescopic steel columns, or as single-piece columns.

The following are potentially defective conditions:
  • The post is less than 3 inches in diameter. According to the 2006 International Residential Code (IRC), Section R407.3, columns (including adjustable steel columns)...
    "shall not be less than 3-inch diameter standard pipe." 
Poles smaller than 3 inches violate the IRC, although they are not necessarily defective. A 2½-inch post may be adequate to support the load above it, while a 4-inch post can buckle if the load exceeds the structural capacity of the post. Structural engineers -- not inspectors -- decide whether adjustable steel posts are of adequate size.

  • The post is not protected by rust-inhibitive paint. The IRC Section R407.2 states: 
All surfaces (inside and outside) of steel columns shall be given a shop coat of rust-inhibitive paint, except for corrosion-resistant steel and steel treated with coatings to provide corrosion resistance.Inspectors will not be able to identify paint as rust-inhibitive. In dry climates where rust is not as much of a problem, rust-inhibitive paint may not be necessary. Visible signs of rust constitute a potential defect.

  • The post is not straight. According to some sources, the maximum lateral displacement between the top and bottom of the post should not exceed 1 inch. However, tolerable lateral displacement is affected by many factors, such as the height and diameter of the post. The post should also not bend at its mid-point. Bending is an indication that the column cannot bear the weight of the house.
  • The column is not mechanically connected to the floor. An inspector may not be able to confirm whether a connection between the post and the floor exists if this connection has been covered by concrete.
  • The column is not connected to the beam. The post should be mechanically connected to the beam above to provide additional resistance against lateral displacement.
  • More than 3 inches of the screw thread are exposed.
  • There are cracks in upstairs walls. This condition may indicate a failure of the columns. 

​Looking for an independent Connecticut Home Inspector? Contact Allied Home Inspections LLC - "Inspected Once, Inspected Right!"
 

Allied Home Inspections LLC
Bethel CT. 06801
Mon - Sat 8AM to 9PM
(203) 515-6622​
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Servicing Bethel, Bridgewater, Brookfield, Cheshire, Danbury, Easton, Fairfield, Hamden, Kent, Middlebury, Monroe, New Fairfield,  New Milford, Newtown, Norwalk, Oxford, Redding, Ridgefield, Roxbury, Seymour, Shelton, Sherman, Southbury, Stratford, Trumbull, Warren, Weston, Westport, and Wilton Connecticut
  • Home
  • Contact
  • About Me
  • Unbiased
  • References
  • Radon Testing
  • Water Testing
  • FAQ
  • Info and tips
    • Blog
    • 15 Tools Every Homeowner Should Own
    • 10 Ways To Save Energy
    • Abrasive Blasting for Mold Remediation
    • Acid Rain
    • Adjustable Steel Columns
    • Advantages of Solar Energy
    • Aging in Place
    • Aluminum Siding
    • Aluminum Wiring
    • Ants
    • Anti-Scald Valves
    • Arc-Fault Circuit Interrupters (AFCIs)
    • Asbestos
    • Asbestos in Vermiculite
    • Attic Pull-Down Ladders
    • Average Home Inspection Cost
    • Backdrafting
    • Backflow Prevention
    • Barbeque Safety
    • Basement Waterproofing
    • Bathroom Vents
    • Bats
    • Bed Bugs
    • Bethel Home Inspector - Allied Home Inspections LLC
    • Biological Pollutants
    • Brookfield Home Inspector - Allied Home Inspections LLC
    • Bug Zappers
    • Building a Home
    • Building Cavities Used as Supply or Return Ducts
    • Buying a Foreclosure
    • Carbon Monoxide
    • Carpeted Bathrooms
    • Central Humidifiers
    • Central Vacuum
    • Central Air-Conditioning Systems
    • Child-Proofing
    • Chinese Drywall
    • Clothing Moths
    • Collar Ties
    • Condensation in Double-Paned Windows
    • Crumbling Foundations in CT
    • Danbury Condo Inspector - Allied Home Inspections LLC
    • Danbury Home Inspector - Allied Home Inspections LLC
    • Electrical Conductor Types
    • Electric Heat and Condensation
    • Electrical Panels
    • EMFs in the Home
    • Energy Conservation
    • Energy-Efficient Houses
    • Engineered Wood Flooring
    • Exterior Design Features
    • Factory-Built Fireplaces
    • Fairfield Home Inspector - Allied Home Inspections LLC
    • FHA Loan Basics
    • Fire Safety
    • Foreclosures
    • Foreclosure Inspections
    • Formaldehyde
    • Foundation Insulation
    • Galvanic Corrosion
    • Galvanized Pipe
    • Garages
    • Garage Doors and Openers
    • Garage Fire Containment
    • GFCI's
    • Gutters
    • Home Inspection: An Overview
    • How To Choose a Home Inspector
    • Ice Dams
    • Infrared Inspections
    • Insulation
    • Internships for Home Inspectors in Connecticut
    • Knob and Tube
    • Links and Resources
    • Manufactured Homes
    • Newtown Home Inspector - Allied Home Inspections LLC
    • New Milford Home Inspector - Allied Home Inspections LLC
    • Oil Burners
    • Plumbing Terms
    • Ridgefield Home Inspector - Allied Home Inspections LLC
    • Roofing
    • Scope of a Home Inspection
    • Sealing / insulating
    • Septic
    • Siding and Insects
    • Stamford Water Contamination
    • Termites
    • Tips For Home Sellers
    • Tips On Finding A Home Inspector
    • Tips To Crush Your Home Inspection
    • Typical Inspection
    • Underground Oil Tanks
    • Vinyl Siding
    • Water Quality
    • Water Softeners
    • Water Softener Backwash
    • Water Wells