At one of our client home they have a room upstairs with louver door cupboards. During winter whenever they put on the gas heater at night, the next day every item in cupboard is wet, vapors are formed on the edges and rear wall of cupboard. Kindly note that the exterior wall is dry always however the room is opposite to the direction of sun. My question is that is it an architectural mistake? What amicable solution you propose us to overcome this problem?
The problem is condensation inside the cup-board, as air in winter get's heated, the water bearing in the air gets condenced on the objects. Use hygroscopic gels available with photographic product venders to keep moisture away from camara lens.
As architects deal with weather, this can be termed a design problem. A second solution can be to change the direction of the heater so that the convecter is parallel to the cupbord throwing heat away in the room will create convection flow and will reduce the problem by 80%.
check that the closed room at night with heater on has some small opening letting in fresh air,occupants breath happens to raise humidy in the air getting condenced on cold surfaces.
Dear Dushyant Nathwani, Your solution and comments are welcome. Actually the second solution wasn��t much effective as it was tried earlier, the more we allow fresh air the less vapor occur inside the cupboard (fine) but the less effective gas heater remains and so the room temp remain cold otherwise. Similarly the direction of heater was changed so was the location, we understand the far heater is from cupboard the vapor % decrease, however the problem persist. Your first opinion will be tried; hygroscopic gel is although not a construction product but can be applied to cupboard. Beside this how will it be if we apply liquid applied water proofing on the walls inside cupboard or vapor barrier?
water proof liquied may help,i have doubt that moisture may be from unseasoned wood.
small amount of fresh air shall not bring down temp.anyway hygroscopic gel are crystalls which absorbes moisture used in camara kits to keep lenses fungus free.
a cote of mallemine spray inside may work as vapour barrier.
Dear Mr.Nathwani, Thanking you for your contribution. We'll proceed with hygroscopic gel and mellamine spray as advised. In case still the results were not acheived as desired then you might be right , we need to replace the whole wood for cupboard.