The bars for the posts must have a cross-section that

[zihadhosenjm40]

Installation of the rafter system.
The installation of the rafter structure begins with the installation of floor beams, which can be attached to the wall plate from above (if you plan to move the beams outside the room, increasing its area). In such a structure, the rafter legs are fixed directly to the floor beams.

Otherwise, they can be laid on waterproofed walls and costa rica mobile database with brackets or corners to the inner edge of the wall plate. This option is used if the rafter legs need to be secured directly to the wall plate.

Next, you need to calculate the center of the floor beam, since this mark will be a reference point for determining the location of the ridge and support posts.

The posts should be at the same distance from the middle of the floor beam. In the future, they will determine the location of the walls of the room, namely its width.

corresponds to the size of the floor beams. The posts are attached to the beams using wooden pads and special corners. But first they are nailed, then aligned using a plumb line and a building level, and only then are they firmly secured with the expectation of future loads.

Once the first pair of posts is installed, they are fastened at the top with a bar (tightening). This in turn is connected with metal corners to the posts.

When the tightening is secured, you will have a U-shaped structure. On the sides, layered rafters are installed on it, which are laid on the wall plate or attached to the floor beam with the second end.

A groove (special notch) is cut into the installed supports for the beam or in the rafter. Using it, the rafters are installed on the wall plate beam and secured with metal brackets.