Condensation in roof space
Condensation in roof space
(OP)
Hi all,
Should a roof space (attic) be ventilated in a commercial single storey building (maximum/minimum design ambient temps of 36 / 4 oC) containinng air conditioning ductwork if both the ceiling and roof areas are well insulated and provided with moisture barriers.
Is it possible that condensation will occur during winter months and will heat loss from air conditioning ductwork be worse if the area is not ventilated but sealed?
thankyou.
Should a roof space (attic) be ventilated in a commercial single storey building (maximum/minimum design ambient temps of 36 / 4 oC) containinng air conditioning ductwork if both the ceiling and roof areas are well insulated and provided with moisture barriers.
Is it possible that condensation will occur during winter months and will heat loss from air conditioning ductwork be worse if the area is not ventilated but sealed?
thankyou.





RE: Condensation in roof space
If, however, the attic is to be conditioned, then the roof itself should be designed and insulated with a moisture barrier to prevent condensation.
RE: Condensation in roof space
RE: Condensation in roof space
Regards,
Eng-Tips.com : Solving your problems before you get them.
RE: Condensation in roof space
Proper insulation and vapor barrier can solve attic condensation problem but depending on humidity rate there may be a risk of condensation if the water vapor that is drift up into attic from building , is not exhausted. It can condense upon the cold roof frame members. Passive ventilation (turbine vent) can help in this sitiation.
This link may be helpful,
http://www.askthebuilder.com/Ventilation.shtml
regards,
Ercan