Moisture Levels

PaddyRussell

Hi All,


Could anyone refer me to a building regulation stating the acceptable levels of moisture in ceilings and walls. Any help at all is appreciated. I need to be able to reference regulated levels of acceptance in a report.

BryanF

Can you elaborate please

Walls made from what? Timber stud? Block work? External?
At what stage prior to slabbing? Existing house with damp issues?

PaddyRussell

BryanF wrote: »

Can you elaborate please

Walls made from what? Timber stud? Block work? External?
At what stage prior to slabbing? Existing house with damp issues?

Thanks. Im referring to internal timber stud walls and ceilings. Building is only 8/9 years old.

BryanF

https://shop.standards.ie

Metric Tensor

Do you mean the moisture in the plasterboard or the moisture content in the timber that supports it?

Either way - your question is kindof approaching the problem from the arse end.

Excess moisture in building fabric that is in situ for that length of time is evidence of a problem. So the exact levels are not as important as what caused them to be elevated. Either there is an external leak, a pipe leak or insufficient ventilation (i.e. condensation). It can only be one of those three things.

If none of those three things are happening then the moisture content of the constituent building materials will have stabilised long ago.

PaddyRussell

Thanks.

Im curious to get the acceptable moisture readings for a timber stud wall and ceiling as Im being told the building is being renovated and timber stud walls and ceiling are being replaced due to moisture.
Im being asked to leave the building for these works but want to review current standards in the industry.  For example, is there any industry document that states:
Low reading: 0-10%
Medium reading: 11-25%
High Reading: 26-40%
Anyone know of where this information is found and or the name of the standard?

dusteeroads

http://www.woodcomponents.ie/wp-content/uploads/2016/03/Trada-Moisture-in-Timber.pdf