Just finish to build the extension shell.
I’ve noticed water inside the cavity (where the folding doors going to be so still able to see inside)
I’ve pumped it up then after a day of rain it came back. Water are below the DPC.
Is this normal? If yes where will the water go once I put the cavity closer and fit the doors? Will it keep going up above the DPC? Then what happened with the rest of the walls ? Will the cavity insulation get wet then dry?
How do I solve it?
