Some buildings have very little subfloor ventilation.
Sub floor ventilation is inadequate.
Even worse killing mould can be extremely difficult.
Unfortunately poor subfloor ventilation can also effect your health.
If you enter a building and you smell a musty odour it may be because of a sub floor ventilation problem.
There is nowhere for the excess moisture to go so the damp rises up the walls.
Insufficient subfloor ventilation can lead to higher moisture levels in the unprotected underside of flooring general dampness in the house and other problems such as cupping of the top surface of floorboards due to a lower moisture content on the upper surface than the lower surface of the boards.
Signs of inadequate sub floor ventilation.
You can usually identify rising damp by a tide mark on the lower part of affected walls.
It also contributes to respiratory problems and illnesses.
A sub floor is the structure and crawl space between the lowest floor and the ground.
This is because poor ventilation in the sub floor results allows humidity to build up.
Common signs of a lack of sub floor ventilation include.
This in turn can cause structural and health problems for the home and it s occupants.
The other main problem area we deal with is inadequate subfloor ventilation.
Most older houses that have suspended wooden floors are the main buildings where we encounter ventilation problems.
Where there is inadequate air flow and therefore poor ventilation the air flow may need to be forced using a professional underfloor fan.
Inadequate underfloor ventilation can lead to an accumulation of moisture in the sub floor meaning mould rotting and structural weakness.
Importance of under floor ventilation.
The most basic sub floor ventilation are vents built in when the house is constructed.
Dampness mould musty odours in living rooms or wardrobes rotting timber floorboards convex of.
How sub floor ventilation systems work.
Due to the enclosed foundations with dwarf walls and solid internal walls it is usually difficult to access the subfloor area.
If ventilation is poor a quick inspection of the vents can sometimes reveal why.
When you see grass and other vegetation growing from inside the wall or soil building up it is a clear indication of an underlying problem with sub floor ventilation.
High moisture levels in these areas promote fungal decay and other timber pests such as termites.
Mould is one of the most common allergy triggers for asthma.
Sub floor ventilation is inadequate which may have allowed defects to occur.