You need to look after all the builders, otherwise you will have to finish it yourself. My example
One of the reasons why I build myself refers to the rule: if you want to do well, do it yourself. There is an element of a perfectionist in me (if possible, then everything should be perfect). But since the roof was built not by me, but by a team of roofers, then you cannot keep track of all the details. Moreover, they built the roof in a record 5 days.
When he covered the rafter system with fire-retardant protection, he examined and analyzed the units and structure. Why was the veil after construction - wrote in this article. The doubts of many readers have been confirmed that fastening beams to plates and corners is not the most reliable solution. Reinforced everything with nails.
If you take a closer look at the photo, you can see that the right beam is attached with only two self-tapping screws in the plate. Plus on one fixing in the center behind the plate. And they are on the edge of the beam. Self-tapping screws are black, fragile. Later, at my request, the builders purchased yellow constructive self-tapping screws.
The fastening of each beam was reinforced with 2-3 nails 120 mm long.
And I also pierced nails diagonally at each place where the rafter beams rest on the Mauerlat. Although, these places were strengthened by the ruff nails of the builders. But they were only 75 mm in diameter and half the diameter of the usual ones. I also fixed all the rafters on the nails.
Here you can see that they are attached at the top on one self-tapping screw (the second at the bottom). Reinforced with a nail and fixed the support at the bottom. I saw solutions when a support is cut into a beam by 2 cm.
In theory, all this had to be discerned and required to be strengthened immediately. Therefore, ideally, it is better to be with the builders constantly and monitor. Of course, if you understand how everything should be according to the project and based on technical solutions.
© Blog of the self-builder. Photos by the author