Top 3 Things to Avoid When Looking for a New Home To Avoid Mould

Top 3 Things to Avoid When Looking for a New Home To Avoid Mould

Mould is a dangerous health hazard that can be difficult to identify. Homeowners and Renters cannot tell if there is mould in their house until the damage is already done or after they move in.

When you buy or rent a new home, it’s essential to inspect the property for signs of mould. Mould can cause serious allergies and ailments, from asthma to migraines, and must be handled immediately when discovered.

Here are the top five things to avoid when looking for a new home to avoid mould.

Mould is a dangerous health hazard

Mould is a dangerous health hazard that can lead to serious diseases. It’s difficult to identify because it looks like a stain.

This means that there are many cases of mould in the home that are not being detected, but should be removed for the sake of your health.

1) Avoid Homes on a Slope or Hill

Depending on the geography of your area, this could be a serious issue. Be sure to take note of surface water and ground water proximity in order to avoid the risk of damp soil and mould growth.

If you live in a mountainous or hilly region, you might need to take into consideration the slope and elevation when looking for a home. With that in mind, check out these tips for avoiding homes on slopes or hills:

-Avoid homes whose foundation is not level because it will make drainage difficult

-Check the slope and elevation of potential home sites before construction begins, renting or buying.

-If possible, look for homes on a flat area or at the top of a hill. Consider homes that are not in a flood zone.

2) Avoid Homes Below Street Level

Homes built below street level often have water or drainage problems. This is because gravity causes water to drain to the lowest point. Often following the shortest or least resistive path. Homes built below street level are a huge problem.

The flow of water towards the home is often caused by the lower side of a hill. If you are building your home at the top of a hill, you don’t have to worry about water flowing downhill. Homes located on the slope of a hill are more prone to having surface water transfer towards the home. This can impact soil or ground dampness around or under the home. Building walls can often have rising damp and water pooling if there is inadequate drainage.

Avoid these homes as these are the most common type of home requesting mould and moisture assessments. There is an increased risk of mould growth.

3) Avoid Homes When You Cannot See the Concrete Slab or Subfloor Vents

There are typically 2 types of homes. Homes built on a concrete slab or homes built on footings, which raise the home off the ground, creating a subfloor or crawl space.

In order to maintain the appropriate airflow in the home, make sure that subfloor vents are visible and have enough clearance (>150mm) from the ground soil. in your concrete slab or subfloor vent before pouring concrete.

A concrete slab should be visible around the home. If it is level with the ground soil, then this will pose a problem with a high risk of surface water reaching the building envelope. The area around the home (building envelope) should slope away from the home to prevent surface water reaching the building. The concrete slab is typically laid on top of builder’s plastic. This reduces the moisture wicking through the concrete slab (rising damp), causing dampness in the concrete, which can cause high moisture and humidity inside the home.


In conclusion, as a homeowner, you should not be discouraged from buying a lovely house with a few flaws. However, you should be aware of the things that need to be taken care of and make sure they are fixed before you buy it.

The most important thing that you need to do is to hire a Building Biologist if you’re unsure. Building Biologists will spot any issues with your house and advise you on what needs to be done.