Openeing through Gable Wall to Extension

[tom85]

I have recently built an extension on the side of my house and i am now in the process of knocking through, however after cutting the first block out out i discovered that they are only 50 mm and joined to the inner course blocks with concrete/steel rods (see picture). I was just wondering if any one had come across this, do i just treat it as normal block work and fit my lintel?

 

[noseall]

I have not seen anything like this before.

Are all the blocks in the wall like this?

 

[Alastairreid]

polystrene insulation and stone cladding added at a later date. maybe !

 

[Atilla]

council house?

 

[r896neo]

Have you tried opeing another area to check if its all like that?

 

[denso13]

Wilson Block construction made up of 50mm concrete - 100mm cavity - 50mm concrete.

See here on slide 28 and 30
http://www.yorkrla.co.uk/files/NFRL Conf 06 Insulation Presentation.pdf

I don't know if you would use a traditional lintol over an opening though.

 

[tom85]

Yes an Ex-Council house, and yes all the walls are the same, it looks like they are of the Wilson Block Construction thanks for that denso13. Will just cut through install a regular lintel and see what building regs say when they come out next.

Thanks for the help guys.

 

[r896neo]

Give that man a prize!