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Home Inspector Blog

Michael Burfitt

​Internachi certified professional inspector
Halifax, nova scotia

The Case Against Open Concept Homes

3/13/2022

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It seems like every single home renovation show has a segment where the client expresses their love for having an open concept home. A few scenes later, out come the sledgehammers and within a few minutes we see a wonderfully clear, open room. If only it was that easy! I am a home inspector and not a building contractor, but I certainly can tell you without any hesitation that tearing out a wall is far messier and more expensive and disruptive than any TV show implies. As a general rule, I personally am not a fan of open concept design and here are some reasons why I believe you should think twice before taking part in this type of renovation.

Load Bearing Walls
Contrary to some horror stories you may read of load bearing walls being cut down, in most modern homes the roof is constructed using engineered trusses, which generally do not require support (for the top level of the house only) aside from the exterior walls. However, In Nova Scotia only a structural engineer can certify a wall is not load bearing. There are lots of articles online about how to identify a load bearing wall, but it is not always that simple as an internet search. 

Plumbing & Electrical
When plumbing and electrical systems were originally installed, no thought was given to what the home would look like 30, 40, or 50 years into the future. A lot of these shows make it look like a simple 2-hour job to move some wires and pipes when in reality, it can be a very difficult and expensive task. These two systems have to be engineered carefully and relocating these features is not as simple as simply adding new pipes and wires.

Houses are Designed to Have Zones
Modifying the structure can affect the home’s HVAC (Heating, Ventilation and Air Conditioning), as these systems were designed with walls and separation in mind. Not only can energy flow be disrupted and possibly require remediation but there is no longer a way to “seal off” specific rooms. For example, in our home the kitchen heat can be turned low after supper to save energy, but this is not generally possible in an open concept house. 

There is also the issue I see in some flipped houses where the stove is moved from an exterior wall towards a more central location. Rarely is the ventilation factored in and while it isn’t required by any building codes, it won’t take long for the lack of a kitchen fan to become unpleasant.

NOISE!
We always have a child and sometimes more than one in our house. As great as kids are, there can be no doubt they are noisy. With an open concept house, the sounds of children (or their favourite shows) can travel throughout the home.  

Asbestos
Any home built before the 80s almost always has asbestos in it. While generally harmless if left alone, it becomes very dangerous when disturbed. Always assume any home built before the 80s has asbestos in the walls until proven otherwise. 

For these reasons and many more, it is important to think twice before knocking down walls. TV shows are designed to provide a wow factor but as a homeowner, unforeseen issues can develop after the sledgehammers are brought in.
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Attic Ventilation

7/26/2021

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One of the most interesting aspects of a home inspection is going into the attic space. This is an area where few homeowners venture and provides plenty of valuable information as to the condition of the home. One such important detail is ventilation. Do unfinished attics where nobody spends any time in really need ventilation? Absolutely!
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There are several reasons why poor ventilation needs to be corrected:
  • Excessive summer heat can warp and prematurely age asphalt shingles.
  • Cold temperatures can lead to a phenomenon known as ice damming, where snow melts and then refreezes, leading to potential roof leaks: most sloped roofs are designed to shed water and are NOT waterproof.
  • Excessive humidity can buildup, leading to moisture in the attic. This can contribute to mold growth, reduction in insulation effectiveness and other issues that I have previously covered. As I have mentioned previously, moisture is the #1 enemy of homes and needs to be controlled.

While it is important for a roof to have adequate ventilation (usually about 1/300ths of roof’s surface) it should also be noted that too much ventilation can introduce too much moisture and can also lead to premature roof failure. A roofing contractor can offer recommendations to the appropriate level of ventilation.

Fortunately, attic spaces generally don’t need a lot of regular maintenance, but they should be checked at least a couple of times a year. One of the biggest issues I see are rafter baffles that have been knocked out of place by high winds. They are pictured in the diagram below and keep the soffit vent free of insulation.

How do you know if you have ventilation problems? Of course, you can always contact your friendly neighbourhood home inspector at Inside Edge Home Inspections for help but here are a few clues that it may be time for further investigation.  
  • An unexpected uptick in heating or cooling bills.
  • Icicles or ice buildup near the gutters and edge of roof.
  • Significantly less snow buildup compared to similar homes.
  • Frost, microbial growth, or moisture buildup on the roof sheathing.​
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There are many types of attic ventilation, but the most common type is a combination of soffit and ridge (roof peak) vents and has been very popular since the 1980s. There are other options that a roofing contractor can discuss should you have any concerns about inadequate insulation.
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Halifax, NS
(902) 209-9921
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