Sub-floor ventilation: We purchased our new home about 18 months ago. Our home is a large house (about 50 squares) and has living areas over three levels as the house is built on a steep block. The sub-floor space is huge and the previous owners had concreted a small portion of the sub-floor area so it could be used as a workshop.
The house is about 20 years old and when it was built the builders put small slits in the brickwork at infrequent intervals (i.e., not the standard 2.2 metres apart) to serve as the sub-floor ventilation.
Over the last 18 months we have had mould growing on the sub-floor soil and the humidity under the house was incredibly high (i.e., about 85%). The stale smell from under the house was progressively getting worse.
We had Simon visit and do an evaluation in terms of what we could do to improve the situation. Simon was great and explained the situation very clearly along with how the situation could be addressed. This involved installing 30+ passive vents, 5 twin low-voltage fans and 2 in-line fans.
Peter then came and spent several days at our house cutting out many holes, installing the vents, fans and in-line fans. He asked our opinion on a number of occasions, to ensure we were going to be happy with things cosmetically, etc. The job was very neat and tidy and he cleaned up afterwards.
Peter did a great job including mixing the mortar to match the house’s existing render.
Warren Jones, Eltham North