Do you need an Exposure Grade Brick?
The durability of a brick is a measure of its resistance to attack by soluble salts. All products manufactured by Austral Bricks are classiﬁed by their durability – either as an Exposure Grade (EXP) product or as a General Purpose (GP) product.
Bricks that are given an Exposure Grade rating are made to withstand high salt conditions.
An Exposure Grade brick should be used for external walls exposed to aggressive environments such as:
- If you are building within 1km of surf coast
- If you are building within 100m of a non-surf coast
- In areas where walls are subjected to salts in the soils, adjacent material or ground water (check wiith your local council if you are unsure of your soil type)
- All retaining walls
- Below the damp proof course in a wall
For a full list of Exposure Grade bricks offered in NSW, please click here
For further details regarding this matter, please click here