Garden design, garden planning, garden layout, planting plants and planting schemes

A DAY IN THE LIFE …of a landscaper (Day 7)

posted in advice category on 2009-01-06

With the weather on our side and a smile on our faces, Day 7 began the paving of the top level patio. As is standard practice by us, we always lay our natural stone paving (sandstone, limestone and granite) on a 30-50mm (Patio areas) wet bed of sand and cement, with a mix ratio of 4-5:1 (sand: cement). We do not use dabs, paving grits or dry mixes. Our technique which also involves brushing the underside of the slab with a wet brush (to give good adhesion and a very strong bond) may cost a little more, and require a little more time to install, but we know very well, once laid the paving is perfect.

For a beautiful and consistent finish we only use solid sandstone kerbs/risers for the steps. Once the levels have been determined between Acco drains at Patio doors and the nearest step, we calculate finish heights for the sandstone risers (the vertical part of the steps). Calculations must take account of our typical falls of 1mm in 100mm (i.e. 1%). Normally but sometimes it may not always be possible, we would set the falls (surface or rain water run-off) away from buildings. It is important to note that Sandstone paving will also vary considerably in thickness from 25-50mm. So in order to achieve a uniform fall/level as well as a consistent appearance to the threads (i.e. top of steps), we would set aside slabs that would be of reasonable comparable thickness. Any marginal variance in slab thickness can be made up by adjustments to the depth of the bedding mortar.

Sandstone Risers.

Sandstone Risers.

Sandstone Paving.

AJ Recess Frame in-situ.

Detail showing mitres at Risers.

Patio at Top level beginning to take shape.

Detail showing block bases for lower thread + risers.

By the close of Day 7, the top level patio was slowly but surely beginning to emerge and take shape. Much done but a lot more to do, so to speak.