fighting the damp

[Scunner]

They are designed to be inserted in the wallys at frequent intervals.

There's a few of those over there

[jackstee]

They are also very helpfull with allowing excess air to escape.

[Rindaloo]

You can buy Ceramic inserts in UK that are between half to one inch thick.

They are designed to be inserted in the wallys at frequent intervals. As they are pourous they enable the water/vapor to exit the walls. Work on both concrete and brick and not overly expensive.

Only a wally would allow you  to insert the ceramic rods more than once!!!