Air Conditioning & Cooling Systems

• Preston's HVAC Guide Books list Mfgs, Models, Capacity, Etc.
• The TRANE Company
• Carrier Corporation

Building Codes

• Code Check- Help with Building Codes
• International Conference of Building Officials (ICBO)
• Building Officials and Code Administrators (BOCA)
• International Association of Electrical Inspectors (IAEI)
• Council of American Building Officials (CABO) (Recently merged with ICC)
• Southern Building Code Conference Intl. (SBCCI)
• National Fire Protection Association (NFPA)
• American Society of Testing Materials (ASTM)
• American National Standards Institute (ANSI)

Construction:

• The Home Inspection/Construction Information Website
• Information on Truss Systems (TrussNet)
• We Build 
• Tips for homeowners
• Hometime
• This Old House
• National Trust for Historic Preservation (NTHP)
• Your Guide to Historic Home Preservation and Products
• National Association of Home Builders (NAHB)
• National Concrete Masonry Association (NCMA)
• Top Gun Roofing Information Site (Excellent Resource)
• The Construction Site
• Construction Research Laboratories
• BuildNET - The Building Industry Online
• The Construction Information Sources (CIS) Database
• Construction Research Org. Servers

Tools, Equipment and Construction Materials

• Porter-Cable Company
• Durock Cement Board
• Arrow Staple-Nail Gun
• Woodstone (Windows and Doors)

Historical and Century Home Info

• Wood Restoration System
• Home Building and Remodeling Network
• Old House Journal
• Hardware for Renovation/Restoration
• Victorian Arts and Crafts Lighting
• Nostalgic Warehouse
• Crown City Hardware
• Invisible Storm Windows for Historic Homes
• Follansbee Steel (Old Tin Roofs)
• Restore Cracked Plaster Walls and Ceilings
• Wood Care Systems
• Wood Shutters
• D.I.Y. Shutters and Hardware
• Rain Gutters
• Reproduction Door Locks, Lighting and Builders Hardware

Electrical

• Holt's National Electrical Code
• Newton's International Electrical Journal
• International Association of Electrical Inspectors (IAEI)
• The Lighting Outlet
• Electrical EINET
• Federal Pacific Electric FPE Panels
• Lightning Strike Risk Assessment, Protection System Information & Services
• NECA Net (National Electrical Contractors Association)

Environmental

• Atlas Chemicals
• Pollution Online
• Environmental Health, Centre for - Univ Victoria
• Lead in and around the home
• Environmental Protection Agency (EPA)
• Free Resources 

Fireplaces & Chimneys

• Chimneys.com
• Rumford Fireplaces
• Chimney Venting Information
• Central Fireplace

Foundations/Repair

• Atlas Piers

Government Agencies

• ANSI Amer. Nat. Standards Institute
• CPSC Gopher
• US Army Corps of Engineers Information Network
• Government Servers via ATSDR Science Corner
• Government US Info Sources: WWW Virtual Library
• NFPA Nat. Fire Protection Assoc.
• NTIS FedWorld
• OSHA Occup. Safety Hazards Admin

Heating Systems

• Underground Storage Tanks / Buried Oil Tanks
• Preston's HVAC Guide Books list Mfgs, Models, Capacity, Etc
• Lennox.

Plumbing

• Plumbing Books
• Kitchen and Bath Fixtures and info
• Books on Septic Systems
• Plumbnet Interactive Plumbing Network
• The Septic System Information Website
• Septic Tank Pumping & Maintenance
• Polybutylene plumbing info at Univ Arizona
• Kohler® Fixtures
• AquaStar Tankless Gas Water Heaters

Roofing

• ROOFER Magazine
• Top Gun Roofing Information Site (Excellent Resource)
• BuildCom Home Page
• Elk Premium Roofing

Siding

• EIFS - USG Says it won't work
• EIFS Builder On Line Articles
• EIFS Facts
• EIFS Damage Photos
• Newsletter
• Louisiana Pacific INNER-SEAL siding failure

• EIFS - USG Says it won't work

• EIFS Builder On Line Articles

• EIFS Damage Photos

• EIMA Trade Assoc.

Construction-Related Search Tools & Data Bases

• Carl Hagstrom's Wood Web
• EINet Galaxy
• Database Catalog - STN
• Directory, The Global On-Line
• ALIWEB dbase
• ERIC Dbase Home Page
• FedWorld: National Technical Information Service
• Virtual Library: Subject Catalogue
• WWW list of Engines
• Submit URL's to Search Engines
• Real Estate Tools

Home Inspection Resources

• American Society of Home Inspectors (ASHI)
• National Association of Home Inspectors (NAHI)
• Society of Professional Real Estate Inspectors (SPREI)
• Home Inspection Specialist