In this month's home inspection picture, we see a good example of some typical moisture and moldy growth on a block foundation wall. Whether in a crawlspace or in a basement, block foundation walls tend to be sponges. They draw in the moisture from the ground outside and encourages mold growth. In addition to that, condensation plays a big role. As the ground temperature is colder than the inside temperature (generally) then condensation builds up. A good moisture control system and dehumidifiers can help control this situation.
Do you have a skylight in your roof? If you do, then you enjoy a nice way to have extra natural light in your home. But at the same time, you likely know that skylights take a lot of maintenance.
Skylights, in essence, are just one of many roof penetrations. When I am on a home inspection and I am looking for roof leaks, I generally find them at the roof penetrations, including the skylights.
So how can you tell if your skylight is leaking, and what can you do to help prevent this issue?
First, be conscious of them. This doesn't mean you have to be staring up at your skylights looking for leaks every day, but you should look up every so often. When you do, keep in mind that moisture stains don't always mean there is a leak. Often times it is just condensation building up, especially if the skylight happens to be in a kitchen or a bathroom.
Also, make your skylights part of your Spring and Fall maintenance. Often times when I am on the roof I see debris built up, organic growth, and other issues that can encourage deterioration and leaking.
In short, skylights tend to require more maintenance than other parts of your roof. But when you give them the needed attention, they will bring you years of natural light and comfort to your home
English, Certified Professional Home Inspector