|Client name||Work detail|
|Henrietta Barnett School - Hampstead Garden||IAAS
founder member Sir Edwin Lutyens designed-in a repair contract for
Gunpoint, the mechanised repointing company, at the 1911-built Henrietta
Barnett School, Hampstead Garden Suburb. Lutyens deliberately used
materials which would weather - soft narrow red bricks with a face of just
two inches, and lime mortar which had deteriorated to an alarming degree.
This concept was adopted by a later generation which in the 50s and 60s
designed in facade rust streaks from fitments and fixings.
Gunpoint tackled the excessive weathering with a 1:2:9 gauged mortar based on sharp yellow sand. To re-obtain the weathered look the joints were brushed to expose coarse aggregate in the mortar.