The key decision when anchoring the wall plate to the ring beam is matching the anchor type, spacing and embedment geometry to the specific loads, concrete class and rafter layout. It is worth checking whether the design clearly specifies these parameters and how forces are transferred through washers and nuts before concreting begins. Also verify that the solution accounts for wind action and that connection details at ends and corners are consistent with the rest of the roof structure. Without this, the risk of clashes and installation errors increases considerably.

A collar-tie roof works when the design specifies horizontal members connecting the rafters at a set height, not when you are looking for a universal solution without supports. Before deciding, compare the position and cross-section of the collar ties and the type of connections with the documentation, as these parameters determine the usable potential of the attic. Also check the complete layer build-up, how the insulation runs, and any changes made on site. The designer selects the arrangement for the loads and geometry, so a similar footprint does not guarantee the same solutions.