Experienced All CMIs® have completed at least 1,000 fee-paid inspections and/or hours of training and education combined. Established...

Hot water boilers should be provided with expansion tanks. There are two types of expansion tanks designated for use with a residential...

Whirlpool/jetted bathtub fixtures must be installed according to the manufacturer’s recommendations. The bathtub may be filled with water...

The illustration above shows the difference between an S-trap and a P-trap. S-traps are not permitted due to siphoning problems....

Unvented Crawlspaces In most climate zones, conditioned crawlspaces perform better than vented crawlspaces in terms of safety, health,...

Check for downspouts diverters not discharging water far enough away from the house. Check floor lawn irrigation systems spraying water...

BASEMENT for smells! Check both concrete walls and concrete slab floors for any indications or evidence of cracking. As a general rule,...

There are two common styles of wood framing: balloon and platform. The main difference between balloon and platform framing is apparent...

A slab-on-grade foundation is a type of foundation consisting of a structural concrete slab poured onto the ground, but usually, there is...

What's an Arc Flash? An arc flash occurs when a flashover of electric current leaves its intended path and travels through the air from...

All electrical systems require a means of disconnection so that the service can be shut down quickly if any dangerous conditions exist....

Many people use the name Romex® when referring to type-NM cable. Romex® is a trademarked name that has come into common usage for...

Wire types for North American wiring practices are defined by standards issued by Underwriters Laboratories, the Canadian Standards...

Knob-and-Tube Knob-and-tube wiring is so named because of the porcelain fittings used to support and insulate the conductors from the...

Moisture A crucial point to always bear in mind is that water can be a very good conductor of electricity. Any panel that is damp or wet...