As a new Home Inspector, you’ll want to keep up on the latest news while maintaining a fresh edge on your knowledge. To help keep your skills sharp, we have selected a few great resources for you to learn from!


Washington State Home Inspection Candidate Handbook – This handbook provides important information that will help you register for the Washington State Home Inspector Examination.

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Oregon Construction Contractors BoardHome Inspector Application Packet.  This packet provides important information on how to become a Home Inspector in Oregon.


2009 International Residential Code® for One- and Two-family Dwellings  Internationally, code officials recognize the need for up-to-date residential code addressing the design and construction of single and multi-family dwellings. The 2009 Edition International Residential Code (IRC) is designed to meet current needs through model code regulations that safeguard the public health and safety in all communities.

Download the brochure on water problems under homes

Water Under Homes
Many homes have water problems and the costs associated with various solutions range significantly. So we ask, what is the simplest and most cost-effective solution? The most common source of water under homes tends to be ineffective downspouts, missing splash-blocks, or insufficient drainage.  We suggest regular inspection for failing mounts, damaged downspouts, and improper drainage. Overflowing gutters may damage the structure and could also encourage flooding of areas below grade. Take a short walk around your home during the worst weather a few times a year to observe the functionality of gutters and downspouts.


Louisiana Pacific (LP) Siding
While a home with LP Siding that has been properly painted and caulked can perform well for years, this maintenance is often overlooked. LP is composed of pressed and glued wood chips, leaving end-grains that will readily absorb moisture when insufficiently sealed.  LP siding is marked by an “LP Knot” embossed on the surface.

LP Siding Maintenance lp smart side logo
“Inspection is an essential part of maintenance. Perform the following checks once or twice a year…”

Untitled-2Federal Pacific Stab-Lok Panels
The Federal Pacific Electric Stab-Lok panel is known as a serious safety hazard. This reputation is well-founded and documented by industry professionals as well as government agencies.

“A significant number of the breakers tested are defective and do not provide the required level of protection…” “..the breakers themselves may develop hazardous behavior in the form of severe overheating or self-incapacitation in the on condition. The high failure rate of these breakers indicates serious deficiencies in the FPE quality control procedures, their product testing, and the UL follow-up testing program.”

Notch and Drill Studs and Joists 
Notching and Boring Joists, Studs, Rafters, and Beams  – IBC Section 2308 & IRC R502.8 – R802.7.2

This electrical equipment is known to be hazardous for several reasons including but not limited to the poor connection clips at the breakers and the manufacturing use of aluminum bus bars . The bus bar and breaker contact points tend to arc and overheat resulting in dangerous circumstances. All breakers have very carefully calibrated springs and other components.

These Electric Heaters require maintenance every six months, or as needed to prevent spark contact with dust and debris.
WARNING! Before removing grill, turn the power off at the electrical panel (circuit breaker or fuse box). Lock or tag the electrical panel door to prevent anyone from turning the power back on while you are performing maintenance. Failure to do so could result in serious electrical shock, burns, or possible death.

Cadet Recall
Check the brochure to see if your heaters were on the recall list

EPA-Lead in Drinking Water
EPA and the Centers for Disease Control and Prevention (CDC) agree that there is no known safe level of lead in a child’s blood. Lead is harmful to health, especially for children. Lead can enter drinking water when service pipes that contain lead corrode, especially where the water has high acidity or low mineral content that corrodes pipes and fixtures. The most common problem is with brass or chrome-plated brass faucets and fixtures with lead solder, from which significant amounts of lead can enter into the water, especially hot water.

Pool Safety, proper barriers from the US government. 
Each year, thousands of American families suffer swimming pool tragedies drownings and near-drownings of young children. The majority
of deaths and injuries in pools and spas involve young children ages 1 to 3 and occur in residential settings. These tragedies are preventable.

Is a sewer scope on a new home a good idea?

In Seattle nearly all new construction is on a lot where there was once an old home. All too often, the sewer line from the old house is tied into without completely replacing the line. As a former contractor, I can see the cost benefit of saving as much of an old sewer as possible.

 Excerpts from the “Fundamentals of Home Inspection” course.
– Exterior Insulating and Finishing Systems.  Synthetic stucco with a much higher rate of failure
Service Entrance – Excerpt from the “Fundamentals of Home Inspection” Electrical section
Handrails –  Excerpt from the “Fundamentals of Home Inspection” Structures section
Dishwasher Drains Air gaps (aka vacuum breakers) and high loops to prevent cross contamination.
Polybutylene identification Polybutylene plumbing tip sheet.
Outlet Inspection Procedure  A brief explanation of common issues and why they are on an inspection report.
TPR Valves and Extension Tubes There are a lot of rules covering pressure relief valves, here  are a few of them.
Cadet / Encore Heater Recalls Listing of the recalled models

Aluminum Wiringaluminum-branch-wiring-overheating
While inspecting a nice early 1970’s home’s electrical panel, we found this neutral bar with several aluminum branch circuit wired connected to it.  So called “old style” aluminum wire can be particularly dangerous and must be identified by the inspector,  according to state law.

Safety Glass By Douglass Hansen
douglas-hansen“Glass manufacturers found themselves the subject of numerous lawsuits, and they recognized the need for uniform standards for the industry. The National Safety Council formed a task group with the National Glazing Association, and their studies found an average of 320,000 injuries per year from people impacting glass in doors and windows”

burn baby
Hot Water Mixing Valves
“Every year, thousands of people in the U.S.A. suffer serious thermal shock or scalding injuries in their bathtubs, sinks and showers.”

circpumpHot Water Circulation Pumps
“Waiting for Hot Water. It’s a common problem: turn on the faucet or shower for hot water, then wait for it to arrive.”

garage_door_safetyGarage Door Safety
“An improperly adjusted garage door or automatic opener can exert deadly force when the door closes. This could lead to serious injury or death”

Simpson Strong-Tie Catalog
Catalog of Simpson Strong-Tie products.  Great reference – Warning this is a very large file about 59MB


small-meterElectrical Service Capacity Calculations
“Most people don’t know the electrical service size for their house. Nor do they know how to figure it out. As a result, electrical service size is often listed incorrectly.”

Wiring Homes for Electric Light from 1916
This is a great from back in the day when electricity was a new thing in homes.
“A supply of electric current in the house for lighting, cooking, and for the operation of the laborsaving household appliances is no longer looked on as a luxury.  Electricity in the house is a necessity.”


Electrical inspection Cheat Sheet
“Electrical codes are in place to protect you, the homeowner. These general guidelines apply to new installations and will give you the basics of what electrical inspectors are looking for. Be sure to check with your local electrical inspector because local codes may vary from the list provided.”

PSE Service Handbook for single family projects PSE-book
This handbook is your guide to Puget Sound Energy’s (PSE) requirements for new, altered/modified, or temporary electric service for permanent single-family residential structures. Inside you will find answers to questions such as:
“What are the installation requirements for permanent and temporary underground and overhead service?
How do I choose the right service size?
What are the trenching requirements?
How do I locate existing underground utilities before I dig?”

Tankless Coil and Indirect Water Heaters
A tankless coil water heater provides hot water on demand without a tank. When a hot water faucet is turned on, water is heated as it flows through a heating coil or heat exchanger installed in a main furnace or boiler.

EPA Tipsheet: Vermiculite Attic Insulation
“Q) Where can I get information on testing or removal of the insulation? A) The EPA strongly recommends using a trained and certified professional to conduct removal work. Removing the insulation yourself could potentially spread asbestos fibers throughout your home, putting you and your family at risk of inhaling these fibers.”

Ghost thumbBlack Stains in Houses: Soot, Dust, or Ghosts?
“Builders are never more surprised than when they walk into one of their newly built model homes and find black stains at wall-to-floor joints and on previously pristine carpeting underneath doorways. What causes these stains and how can builders and homeowners prevent them?”

Manufactured home thumbnailINTRODUCTION-  to the Inspection of Mobile Homes for Defects
Manufactured homes have many unique issues associated with them. There are special rules about financing them and are often made with inferior materials. “We found so many unsafe and un-healthy conditions in the trailers and mobile homes occupied by migrant farm workers that there was almost no safe habitable housing at the facility.” 


Handrail rules
We continually see stairs that are not properly constructed. Here are some of the rules the assure your stairs and railings are safe.

Log Home thumbnailLog Home Inspection Checklist
Log homes have their own set of structural issues, such as chinking, shrinkage, and settlement as well as the logs themselves. “Most problems are water related whether it be from shrinkage or exposure to moisture.”

Built Wrong from the StartHammer thumbnail
The top 10 blunders that rot your house,waste your money, and make you sick. “Houses are more complex than they used to be. They have more insulation, they have elaborate heating and cooling systems, and they are built to be nearly airtight. These components can make comfortable, energy-efficient houses that serve their owners well. But if they’re put together wrong, a house and its occupants can be in for some serious problems.”

Reuben Saltzman thumbnail
The Advantage of Hydronic Heating:   Boilers vs Furnaces – By Reuben Saltzman
“Boilers have definite advantages over furnaces, with comfort and silence being the two biggest.  Boilers provide more comfortable heat than furnaces because the heat is even – especially if it’s installed in the floor. Floor heat allows everything in the room to be warm, including your toes.”

Spantex logo thumbnail
 Spantex – Waterproof Sealer & Treatment for Exterior Horizontal Surfaces
Spantex® is a synthetic rubber, elastomeric coating made from Dupont’s Hypalon. It is used where a tough, waterproof, skid resistant coating is needed. Spantex® is self-vulcanizing, which means that you can patch it or roll on a new coat at any time and it will become an integral part of the original coating.

Permanent Wood Foundation (PWF) PWF-permanant-wood-foundation-stamp” Load-bearing lumber- framed foundation wall sheathed with plywood. All lumber and plywood components in the wood foundation are pressure treated with preservatives to withstand decay from moisture and insect damage.”

 cross connection control, backflow preventer
Residential Backflow Prevention
“Chlordane was siphoned through a hose at a residence in Roanoke, Virginia, contaminating the water supply of an entire neighborhood. The cost to the water purveyor to replace water mains, valves, meters, service lines, water heaters, ice makers, and other plumbing was about $200,000. In addition, lawsuits totalling several million dollars were filed.”

alum repair

Repairing Aluminum Wiring – U.S. Consumer Product Safety Commission –
The fire hazard investigated by CPSC occurs at connections with aluminum wire, including receptacles or switches and junction boxes; or the hazards occur with major appliances.In 1974, a tragic house fire took the lives of two persons. It was caused by a faulty aluminum wire connection at an outlet. The CPSC has conducted research that shows that homes wired before 1972 are 55 times more likely to have one or more connections reach “Fire Hazard Conditions” than a home wired with copper. Signs of trouble in aluminum wire systems include warm to the touch face plates on outlets or switches, flickering lights, circuits that don’t work or the smell of burning plastic at outlets or switches.

Ground Fault circuit Interrupter (GFCI)
 A “GFCI” is a ground fault circuit interrupter. A ground fault circuit interrupter is an inexpensive electrical device that, if installed in household branch circuits, could prevent over two-thirds of the approximately 300 electrocutions still occurring each year in and around the home. Installation of the device could also prevent thousands of burn and electric shock injuries each year.

co detector

Carbon Monoxide – In 2002, there were an estimated 188 unintentional non-fire carbon monoxide poisoning deaths associated with consumer products. The deaths were associated with heating, engine powered tools, charcoal or charcoal grills, gas ranges and ovens, camp stoves and lanterns and other appliances.

Wood framed structures for permanence– When properly designed, wood frame structures will resist damage by moisture and living organisms. Recommendations are for control of moisture and protection against decay and insect infestation.

woodframeddropshadowWood Frame Construction – Wood frame construction is the predominant method of building homes. History has demonstrated the inherent strength and durability of wood frame buildings. Wood framed buildings are economical to build, heat and cool, and provide maximum comfort to occupants. Wood construction is readily adaptable to traditional, contemporary and all building styles. The possibilities are endless.

Ductwductworkork Standards The routing of flexible duct, the number of bends, the degrees in each bend, and the amount of sag or direction changes (snaking) allowed between support joints will have serious effects on system performance due to increased resistance.

Radon radon Radon is a naturally occurring radioactive gas released in rock, soil and water that can build up to dangerous levels  inside any home; this means new and old homes, well sealed and drafty homes, and homes with or without a basement. Radon gas is odorless and invisible and the only way to know if your home has a radon problem is to test for it.

Heavy Timber Construction – Heavy timber construction is one of the oldest types of buildings used int he development of this country. Its superior performance has been demonstrated in thousands of buildings during the past hundred and fifty years, many of which are still in satisfactory use.

Plank and Beam Framing – The plank and beam method for framing floors and roofs has been used in heavy timber buildings for many years. Whereas conventional framing utilizes joists, rafters and studs space 12 to 34 inches on center, the plant and beam method requires fewer and larger sized pieces spaced farther apart.

residentialelectricalResidential Electrical Service – This handbook is your guide to Puget Sound Energy’s (PSE) requirements for new, altered/modified, or temporary electric service for permanent single-family residential structures. We have also included additional requirements for electric service to outbuildings (barns, shops, pump houses, garages, etc.)

tongueandgroovedeckingTongue and Groove Roof Decking – Timber tongue and groove decking is a specialty lumber product, constituting an important part of modern timber construction, that can be used for many applications to provide an all wood appearance. 

weatherizeWeatherize  Warm or air conditioned air mixes with outside air through gaps in your home’s thermal envelope, exterior walls, windows, doors, the roof and floors. Such air leakage is a waste of large amounts of energy. Most experts agree that caulking and weather-stripping any gaps will pay for itself within one year in energy savings. 

Cool roofs by Department of Energy – These roofs can benefit the environment, and policymakers may issue cool roof regulations to provide these benefits to society. They can reduce local air temperatures, which improves air quality and slows smog formation, reduce peak electric power demand; which can help prevent power outages; reduce power plant emissions, including carbon dioxide, sulfur dioxide, nitrous oxides, and mercury, by reducing cooling energy use in buildings; and reduce heat trapped in the atmosphere by reflecting more sunlight back into space, which can slow climate change.

Eight Tips for Maintaining Your Well  – You probably don’t have an owner’s manual that goes with your well. That seems okay  until you need help. It’s at times like those that you’ll wish you knew some basics about water well system maintenance.

Palmer Valve
A palmer valve is a plumbing device that allows drain tile to discharge to a gravity sewer system. A palmer. valve is a mechanical check valve, located in a drain tile receiver, to prevent the backflow of sewage into a drain tile system.

Well Basics Video
There’s a diaphragm in the tank with pressurized air above the diaphragm and a water holding area below. As the water holding area fills, the diaphragm is forced up, increasing the pressure and charging the plumbing system with greater pressure. Once the system pressure reaches the pump cut out pressure the pump stops.

Flexible gas connectors
Gas connectors are not a substitute for gas piping, max 6 ft. length.
Two connectors joined together is an improper installation.
Gas Connectors should never disappear into a concealed location, connectors entirely in same room as appliance, shutoff valve within 6 ft. of appliance & in same room.
Don’t reuse gas connectors. According to every manufacturer, gas connectors should never be reused.
When a gas appliance is replaced, the connector should be replaced at the same time.Valves, Shutoffs & Appliance Connections
All valves accessible & protected from damage. (Note: flexible connectors may be req’d in seismically active areas.)

Heat Pumps Video Demo
The only thing different about a heat pump and an air conditioner is the reversing valve.  This valve allows the heat pump to change the flow of refrigerant in the system, so it can operate in either cooling or heating mode. During the winter, in heating mode, the heat pump absorbs heat from the surrounding air, concentrates it in the heat-exchanger and blows the air into your home.

Wet Vent Definition:  A waste pipe that also serves as a vent pipe.
Wet venting is most common in conjunction with toilets and sinks; the drain for the sink is also the vent for the toilet.

Kitec Plumbing issues –  
The main issue has been the specific brass fittings used as connectors with this pipe, and their impact on the whole hydronic system. Kitec pipe and fittings fail due to a chemical reaction known as dezincification, which results in reduced water flow and leaks

Applicants are required to pass two exams in order to qualify for the Structural Pest Inspector
(SPI) license. There is a 100-question general knowledge exam and a 50-question practical

Washington State University Structural Pest Bulletins