Hi,
I recently had to take up the laminate flooring on one of my ground floor rooms. The real floor underneath is suspended (about 6 inches) above the ground.
When I put the laminate in, I first covered the floor with 6mm hardboard, panel-pinned at 200mm intervals. On top of this I put the Westco polystyrene/foil vapour barrier stuff, then finally the laminate.
When I took up the floor and took out a couple of floorboards, I noticed that the joists etc. at the front of the house were very damp from condensation. This had caused the hardboard to warp, pushing the laminate up in places. There are two air bricks at the front of the house and the flow under the floor is unrestricted.
Condensation forms when warm air meets a cold surface, so I'm puzzled why there should be condensation under the floorboards, when the air under there comes directly from outside the house. It's bound to be cold compared to the floor itself.
Can anyone shed any light on why this condensation is building up?
Cheers
Jim
I recently had to take up the laminate flooring on one of my ground floor rooms. The real floor underneath is suspended (about 6 inches) above the ground.
When I put the laminate in, I first covered the floor with 6mm hardboard, panel-pinned at 200mm intervals. On top of this I put the Westco polystyrene/foil vapour barrier stuff, then finally the laminate.
When I took up the floor and took out a couple of floorboards, I noticed that the joists etc. at the front of the house were very damp from condensation. This had caused the hardboard to warp, pushing the laminate up in places. There are two air bricks at the front of the house and the flow under the floor is unrestricted.
Condensation forms when warm air meets a cold surface, so I'm puzzled why there should be condensation under the floorboards, when the air under there comes directly from outside the house. It's bound to be cold compared to the floor itself.
Can anyone shed any light on why this condensation is building up?
Cheers
Jim