If the upper supporting surface of the subframe is not processed, but has separate processed sites, in places of location of these sites, the probe is allowed to pass a thickness of not more than 0.03 mm.
If the upper supporting surfaces of the subframe do not meet the above requirements, these surfaces are sawn and shabed with a check on the paint line and the subsequent adjustment of the position of the subframe by the level set for this line.
In the case when the anchor plate is laid during the construction of the foundation, then after the position of the subframe is adjusted, the foundation bolts are slightly tightened and checked again (just like the foundation frame), there are no changes regarding the deformation and horizontality of the subcurric.
Then, in both cases, the wells are filled and the lower support surfaces of the subframe with concrete or cement mortar in the same sequence and similarly as it is performed during the installation of the foundation frame directly to the foundation, and also checking whether there were changes regarding the deformation and horizontality of the subframe of the subframe over permissible values. Concretion of the upper surface of the foundation, its plastering and coating with oil -resistant paint is also made similarly to the above.
After the subframe is mounted, the foundation frame is installed on it and the horizontal and lack of deformation at the upper surface of the frame is checked before fixing it, as well as the fit of its lower supporting surface to the subframe using stupid. When you have already finished with the foundation, and the building is essentially ready, proceed to coating the roof. Today there are excellent materials that serve as durable and reliable. Such materials include a metal tile in St. Petersburg, which can be ordered at favorable prices.
Both in relation to deformation and in relation to the horizontality of the requirements for the upper surface of the foundation frame are the same as when installing it directly on the foundation. As for the fit of its lower surface to a previously verified subframe, then with a completely processed surface of the subframe, it is allowed in some places, with the exception of places of attachment by bolts, passing the plate of the probe with a thickness of 0.1 mm. In the places of location of the bolts of fastening the frame to the subframe, it is possible to allow the passage of the probe with a thickness of not more than 0.03 mm in separate areas.
