Fig. 4.

The effect of vegetated façades (thick-leaved, high LAI, Prunus laurocerasus versus small-leaved, low LAI, Cotoneaster franchetti) and non-vegetated façades on mean air temperatures at a wall surface and within the cavity space of the wall. Data were recorded at 21·00 h during subzero conditions on 11 separate days between January and March 2011. Each treatment was represented by three replicate walls, and values for 21·00 h meaned from readings recorded at 20:50, 21:00 and 21:10 h, respectively, on each occasion. Bars = LSD (P = 0·05, d.f. 107). Reproduced with permission from Taylor (2012).