Is this a cavity wall?

[leeweedon]

Looking at cavity wall insulation?

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• leeweedon
• 22 Jul 2013
• 1

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• leeweedon
• 22 Jul 2013
• 1

 

[stuart45]

Measure the thickness of the wall at the opening jambs. There are headers in the wall, but sometimes snapped ones are used.
You can also drill a small hole in the wall. CI firms drill holes to check the walls.

 

[leeweedon]

Measure the thickness of the wall at the opening jambs. There are headers in the wall, but sometimes snapped ones are used.
You can also drill a small hole in the wall. CI firms drill holes to check the walls.

The walls are 22 cm thick.

 

[stuart45]

Sounds like a solid wall.

 

[kazuya]

looks like Flemish stretcher bond to me which would make it a solid wall

 

[kbdiy]

I think this is known mixed garden wall bond as per this link http://encyclopedia2.thefreedictionary.com/mixed+garden+wall+bond - 3 courses of stretchers and one course header/stretcher. Either way, it'll be one brick thick, solid.

 

[trowlerman]

yep solid wall

 

[stuart45]

I have worked on houses with headers in the bond, but they were cavity walls. There was a cavity tie brick sometimes used that needed a cut brick to cover the end of the tie on the face work.

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• stuart45
• 23 Jul 2013
• 1

 

[leeweedon]

I have worked on houses with headers in the bond, but they were cavity walls. There was a cavity tie brick sometimes used that needed a cut brick to cover the end of the tie on the face work.

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• stuart45
• 23 Jul 2013
• 1

So what is a sure fire test I can do to find out?

 

[stuart45]

The thickness of the wall tells you a lot about it. 100mm brick face, 100mm brick or block inner skin (rough measurements) plus 50-75 approx for older cavity wall, plus internal plaster.
Solid walls approx 220mm (does vary a bit) plus plaster.

 

[chickenlips]

220mm will be a 215mm wall which is 2 brick with approx 15mm gap.

 

[trowlerman]

I have worked on houses with headers in the bond, but they were cavity walls. There was a cavity tie brick sometimes used that needed a cut brick to cover the end of the tie on the face work.

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• stuart45
• 23 Jul 2013
• 1

So what is a sure fire test I can do to find out?

if you measure the bricks in your photo the overall thickness of the wall is about 250 to 300 mm, your house is only 220 mm so its a solid wall no cavity