Internal blockwork: spec feedback

[bmj1]

Hi team,

 

Our builder has proposed the below aircrete blocks for internal concrete walls on our first floor level.

 

Any comments/feedback ? I have no idea if this would be a downgrade on concrete blocks ?

 

I'm particularly interested in the sound deadening qualities & thermal performance, but any other feedback/suggestions welcome ?

 

Many thanks in advance

Edited September 25, 2022 by bmj1

[nod]

Whilst u values are higher Concrete blocks are more sturdy 

I wouldn’t build any free standing walls out of them 

Prone to getting knocked over or blown over 

Brickies love them 

 

[Mr Punter]

They are not very strong and are difficult to fix to.  If they are internal walls you should not need thermal properties.  A medium density aggregate block like Hemelite is good.

[Simplysimon]

2 hours ago, Mr Punter said:

are difficult to fix to

yup, unless you want to go back to using cut nails