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Is this blockwork ok?


WWilts

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Inner leaf of external cavity wall. Mortar mix 5:1, blocks are 7N aircrete.

 

Doesn't look too good but that's a layperson view. Specified: LABC warranty standards. If not passable, what is the way to remedy work already done? Just pointing enough?

 

And how DO brickies get mortar in perpends?

 

 

inner leaf blockwork.jpg

Edited by WWilts
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its just not pointed is all, if you want it to be pointed (better for air tightness) ask the brickie to make sure it is. Some sites its not pointed as its not seen and plastered over anyway.

 

if its the the inner leaf the tie is on the wrong side ?

Edited by Dave Jones
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6 hours ago, Declan52 said:

A bricklayer didn't build that

Internal face of same blocks

inner leaf blockwork interior face.jpg

 

Will ask for perpends to be buttered better. Want to dig heels in on what makes a difference, but not the rest. In general good service

Edited by WWilts
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57 minutes ago, tonyshouse said:

get into your rooms and first floor void

Is there a detail that protects the first floor void when plasterboard on dabs is inevitable for various reasons?
Is there a way to seal the gap between joist hangers, where plasterboard is absent?

Edited by WWilts
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22 hours ago, tonyshouse said:

tonytray

Triggered an idea for an extension of that detail to protect the non-joisted part of the first floor void. 


In addition to  polythene or similar to replace joist caps, drape another length of membrane across the top of the wall from one joist to its neighbour. Overhanging the inner leaf on both faces. Then after ceiling board and floor board installed, pull the overhangs in and tape to the respective boards, as well as to the airtight membrane or tape at the respective wall junctions.

Treating the entire floor void as a quasi-joist. For those who are constrained to have no more than plasterboard on dabs.

Edited by WWilts
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On 30/09/2021 at 23:27, WWilts said:

If not passable, what is the way to remedy work already done? Just pointing enough?

 

 

A mechanical mortar gun which works like a giant mortar syringe is one possibility, trouble is these require a wet mix and the whole job becomes messy. The other option is to us a thin pointing trowel but this is a fiddly job on the vertical perps.

 

On 30/09/2021 at 23:27, WWilts said:

And how DO brickies get mortar in perpends?

 

 

With my brickie team this was a 2-stage job. First is the usual extra 3 seconds a block to butter the end with mortar then the brickie's mate went around pointing up both sides of the block wall within the hour and filled in any voids. The cavity had a rougher finish but was still better than your example.

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