We provides a window sill in lenghts of 2.5 metres.for the block sizes of 150mm 166m and the 200mm blocks.

The thickness of the sill is 80mm. As per the picture shown, the sill is placed across the blocks after it is filled with concrete and the Window frome is placed on the sill.

Allow for the 80mm thickness when choosing the window height.

The weight of the window is more than sufficient to secure the window sill to the wall. The window sill section that protrudes from under the window is later rendered using the fibre glass mesh set in the render and is very strong and looks good.