Articles about Damp Proof

Expansion Joints – Thermal Heating and Crack Prevention

When heated thermally, most commonly by the Sun, all bricks expand fractionally, up to around 2mm. This effect across a whole building can cause significant effects and therefore expansion joints are placed every 6m or less in the construction. As well as cracking, a brick layer can also oversail the Damp Proof Course (DPC) put [...]

Water Penetration – Capillary Action, Pressure, Surface Tension

Anywhere with a damp climate suffers problems from water penetration into buildings. Here are some of the ways water enters buildings….
Capillary Action: when water runs down the face of a building, if there are mortar (or bed) joints such as in brickwork, water is absorbed like a sponge. Eventually it will get to a point [...]