Tuesday, 14 September 2010

What's wrong?


Image from: National House Building Council, NHBC
The Use of Lime-based Mortars (Dec 2008) Page 3
Frog-up is correct, but look carefully at the buttering of the perp-joint. This brick is about to be laid up-side down. Why?

1 comment:

  1. WorldsCleverestMan25 November, 2010

    hmmmm yes this is rather confusing, isn't it ?

    ReplyDelete