Mike's Home Inspector Blog

Framing Common Issues

3/26/2023

This is an example of how we home inspectors can "see" wall studs.

As a home inspector, I frequently get asked what is the most common issue you come across?, which I have discussed a few examples on this blog. One question I would love to be asked is what do you see that's normally correct?. One such area that I rarely if ever encounter noteworthy issues is in the home’s framing. I recently performed an inspection where it was clear the house required a significant amount of updating, in particular the electrical, roofing and plumbing systems, however, no issues were detected in the home’s framing. I remember my client asked me “are you sure the framing is okay?” repeatedly and I assured them that I did not detect any issues whatsoever despite the fact it was an older home. Much like the human body the framing is the home’s skeleton and the backbone of a safe home so it is definitely an area that shouldn't be neglected.

While it is true that often floor joists and wall studs are hidden behind drywall there are ways of verifying proper construction techniques. One such way is by using my favorite tool: the thermal imager. Here you can see a clear example of where the wall studs are located. This is known as a thermal bridge because wood does not insulate as well as actual insulation and shows up as a darker (colder) spot on the image.

That doesn't mean however that all framing is perfect by any means. There are common issues I do look out for and even if they aren't worth fixing I usually point them out as being technically incorrect. Here are a few examples of many I come across:

Studs/Joists That Are Cut
It is common to see electrical, plumbing and HVAC lines that run directly through floor joists. there's certainly nothing wrong with this as long as it is done properly (I won't bore you by quoting codebooks). There are a few guidelines that home inspectors use to evaluate if a joist has been improperly cut:

A hole should not be more than 1/4 of the depth of the joist.
A notch should not be more than 1/3 of the depth of the joist.
There should no notches in the middle 1/3 of a joist.

Below is a picture of a joist that was cut a little too far in order to accommodate a toilet installation. However, this is the perfect example of why I rarely use a tape measure during inspections. In this case, the home is 25 years old and has no signs of any sagging floors, so fixing this issue is prohibitively expensive for the minimal benefit and in my opinion there is no reason to waste money to fix it.

Insufficient Nails in Joist Hangers
Probably the most common issue I see with a home’s framing is in joist hangers. They have a large number of nail holes and while they are supposed to be all filled with nails in reality I rarely see this. In the grand scheme of things this isn't really a major deal as long as a handful are missing here and there. If, however, I'm only seeing two to four per joist hanger that is when I get worried. In my own home some have all the nails filled in and some are missing one. That is not a concern to me although technically it is incorrect.

Cracked Joists
One thing I see in my own home is a split on one of my floor joists, commonly known as wood checking. This is essentially caused by wood that was installed wet (known as green wood) and dried out, causing the cracking. Would I like to replace it? Without a doubt. Is it expensive to replace? Yes. Is it going to cause the house to collapse? Of course not! Therefore the best course of action in this particular case is to take no action. If half this joist was separated and hanging that would be another issue which is why they need to be evaluated on an individual basis.

I sound like a broken record when I say every home has issues but I am also aware that homeowners don't have a bank vault at their disposal and need to prioritize fixing their homes. The framing issues I come across are generally not a major concern.

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Questions Your Inspector (Should) Answer

3/5/2023

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I am now entering my third year running an independent home inspection company and what a fun ride it has been! I can now confidently say that every home is different, no two homes are alike and one of the most exciting parts of being a home inspector is discovering something new. It is always fun to see a unique feature of a home and to see things that we previously have only seen during training.

However, there are some things that are the same on every inspection and while no two inspector’s skill or background is the same there are some things every inspector should know. It always comes off as a shock when I tell clients that there are zero home inspection regulations in Nova Scotia, and anyone can legally call themselves a home inspector in a week or two. Here is a sample of some questions a home inspector should be able to confidently answer after every inspection.

Does This Home Have Concerning Electrical Issues?
While we are not electricians, home inspectors should be able to detect most major electrical issues. They include:

Potential unsafe aluminum (AL) wiring, and differentiating between normal and abnormal AL as not all AL wiring is a concern.
If a home is grounded, why this is an issue and how much of a concern it is. There are a few solutions at various costs for ungrounded homes and a home inspector should be aware of the major solutions electricians use aside from rewiring the entire home.
If any receptacles have reverse polarity and why this can SOMETIMES be a concern with certain appliances.

What Are the Major Plumbing Materials?
Most homes I inspect use copper pipe to bring service in from the street, cross-linked polyethylene (PEX) for distribution and plastic, and either ABS (black) or PVC (white) for wastewater. An inspector should be aware of materials that may or may not be a concern such as:

Lead supply lines and the dangers of lead poisoning. They should be aware that here in Halifax they are only found in certain areas, such as peninsular Halifax and downtown Dartmouth.
If a home has polybutylene or Kitec (PEX-AL-PEX) and why these are controversial materials.
If the water pressure is lower than average, especially when multiple taps are used. This may or may not be an issue and a home inspector should be able to advise accordingly.

Does The Home Have Potential Water Infiltration Issues?
There is a common phrase I use which is “water is the #1 enemy of homes” and biggest concern I get called about is moisture and the damage it has caused. A home inspector should know that water has many ways to enter a home and some of the many signs of water damage. Like many home inspectors, I use a number of tools as well as all my senses to look for signs of either active or potential water infiltration into the home. While we don't have X-ray vision and leaks can be very difficult to detect, a home inspector should be aware of the various ways unwelcome ways water can enter a home.

These are just some baseline areas that all home inspectors should be able to confidently speak of. While we are generalists, not specialists we should have a strong enough knowledge to identify the majority of home defects. Your inspector should answer these three questions either verbally or in a report.

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