To obtain a flat, vertical and horizontal surfaces, it is necessary to sister marking and fix it with beacons and brands.
Lighthouses are installed using a waterpasis, or ordinary construction weight with a load. You can use ready-made beacons in the form of a T-shaped profile or make gypsum. On concrete surfaces, the beacons are installed using the rule equipped with an angular with a vizier or a waterpol. Lighthouses must be installed through1 — 1.5 meters and each is thoroughly verified by verticality and parallelism to other surfaces.














