Breeze Block Querie

[staningrimsby]

Hi Folks,

Sorry to bother you again just after a little more info,

What is the difference between an aerated block and a standard dense block ???

and is a 'Class B' engineering brick suitable for below a DPC ???

Many thanx in advance
Stan.

 

[noseall]

an aerated block offers a slightly better 'u' value than a denser block and is a lot easier and quicker for a brickie to lay.

class b engineering bricks are ideal for below dpc.

 

[^woody^]

An aerated block is generally lighter too. Also easier to cut small pieces and reveal returns - incidentally aerated blocks are the only types which can be returned at reveals with no need for expensive reveal liner or insulated DPC

Personally I don't like them and prefer a lightweight concrete block which is just as light and quick to lay, and IMO easier too as the compo sticks better and the water is not sucked out of it too quick either.

The other downer with aerated is the difficulty to get a good fixing. Also less flexible and prone to vertical cracking if you don't get the compo mix right

 

[staningrimsby]

Im not going to have any window reveals but will have a set of french doors going in, been told i will have to have cavity colsures were the door is going to go ??