The upgradeable Blair VIP (uBVIP) - SuSanA

Building the superstructure
The superstructure is constructed in various local
materials - grass, poles or bricks. In fact locally made
bricks are low in cost and can be bonded with traditional
materials like anthill mortar. The spiral version is preferred
because it has no moving parts and guarantees semi –
darkness within. In a new technique wooden templates can be
used to guide those less skilled at brickwork.
The configuration of the new
BVIP is slightly different to the old to facilitate ease of
construction and saving on the number of bricks.
Various manuals describe the superstructure construction.