Any idea what type of block this is?

[Lfcsixtimes]

Hi, I’m currently internally insulating walls by PIR and plasterboard over the top (aluminium taped and PB staggered joins)

I’ve started to remove the plaster from the brick (house is brick>cavity>block) to gain an inch or so.

Can’t anyone tell me the name of this block type and/or its density? It’s soft as hell!

Thanks

 

[RandomGrinch]

How old is your house? Is it a Wimpey home by any chance?

 

[noseall]

No fines concrete.

 

[Lfcsixtimes]

It’s a mid terrace 1950s ish. I didn't realise what that type of house was, but I had heard of Boswell non-standard construction which was classed as defective… it appears Wimpey isn’t?

Thanks

 

[Lfcsixtimes]

Thanks for replies. In terms of internal insulation and as it’s density is very low, would d&d or adhesive foam be better?

 

[noseall]

Thanks for replies. In terms of internal insulation and as it’s density is very low, would d&d or adhesive foam be better?

In terms of what?

 

[Lfcsixtimes]

As the block is so aerated, I wondered if one would be better than the other for holding power

 

[kp00110]

My 1930s house has these same blocks in places so not necessarily a wimpey house etc. The blocks I have are actually very heavy and very dense.

 

[Lfcsixtimes]

Thanks, does anyone have any idea how could I determine what build it is and wether it's a wimpey or not? I've contacted Building Control who said they have no idea as their records don't extend beyond 1989.

It has all the hallmarks... no-fines, pebbledash exterior etc but I think I need to be sure.

 

[freddiemercurystwin]

My 1930s house has these same blocks in places so not necessarily a wimpey house etc. The blocks I have are actually very heavy and very dense.

As the OP's blocks are 'as soft as hell' then you hardly have the same blocks do you?

 

[noseall]

As the block is so aerated, I wondered if one would be better than the other for holding power

I’m still astonished at the grab power of board adhesive. You always remove the surface of the block when doing a rip-out.

 

[Lfcsixtimes]

I did think board adhesive but with it being no-fines, unless I scutch it level till the cows come home I may need the flexability of d&d. I've seen that IWI isn't appropriate for no-fines, but I'm unsure (if I seal/tighten the envelope properly) why this would be the case.

 

[jeds]

does anyone have any idea how could I determine what build it is and wether it's a wimpey or not?

Post a photo of the external - or of a similar neighbouring house.

 

[RandomGrinch]

does anyone have any idea how could I determine what build it is and wether it's a wimpey or not?

I don't know if yous had a look at wiki?
Theres a few UK estates listed:

Wimpey no-fines house - Wikipedia

en.m.wikipedia.org

Wimpey No Fines

Introduction to the Wimpey No Fines Non Traditional Concrete Constructed Post War House. Including construction details and cross sectional diagram.

nonstandardhouse.com

 

[Lfcsixtimes]

Post a photo of the external - or of a similar neighbouring house.

I’ll do this tomorrow as I’m not sure there’s any benefit of pics in the dark!