Hi, I have a 1977 brick veneer house on brick piers. We have owned the house for seven years and I go under the house every 6-12 months looking for termite activity.
Today during my inspection I noticed much of the clay soil under the house was moist/damp. Almost muddy in parts but no puddles thankfully. Previous inspections I have done after some rain there has been only a small area (5 sq meters) of damp soil. Whereas now around 50% on the soil under the house is dampish.
Like many places in Australia we have had heaps of rain over the past year – the most since we have had the house – but none for about week. Should the soil have dried in that time? Could the soil dampness be a result of rising water table?
The house is on a very minor slope and there are numerous ventilation grills throughout and no raised garden beds. Under the house smells like wet soil (like when your gardening) – but not musty. All the subfloor timber looks normal – no signs of fungal attack/rotting/decay. And the brick piers look stable.
I am wondering whether I should do something immediate- like get an exhaust fan under the house and/or install an agricultural drain to the back of the house to prevent run off – or should I just monitor the situation more regularly – every month or so in the hope that it dries out?
Any advice would be appreciated thanks