Tying floors and the upper rail of a frame house. How to do it right?

Cantrail frame house holds all the components, after the entire skeleton of the building assembly becomes stable and durable. This harness is installed floor slabs or roof.

Compound uprights

Vertical strut easier to seal in a horizontal position, and then set horizontally. Strapping stands - is a continuous ribbon that connects together all the racks of a skeleton on the perimeter. It should take into account the load of the upper floor / attic roof with a roof and is designed for uniform load transfer across the perimeter of the building.

Material Strapping

Most often used for strapping board width 150h50 mm. Metal structures are less commonly used because of their high prices and the additional load on the foundation. Used as a single or dual board, floor mounted with respect to the plane. Before laying the boards are usually placed insulation material in areas external connections.

Thickness strapping beams must not exceed the dimensions of the racks.

Strapping used board 1 or the second grade, absolutely straight, with no large knots, moisture content no more than 14%. It is best to use a laminated veneer lumber.

Capacity boards

In that case, if the length of the wall more than a standard board, they are joined. However, docking is only possible if there is additional support. Boards can be connected:

- back to back, in this case, simply connect the ends of the board and nailed at an angle of 45 degrees. This connection is only possible if there is no heavy loads at this point trim.
- The half-tree: a connection works well for a break.
- tongue and groove: this compound is quite labor-intensive, is carried out by professionals and used in the most responsible sites.

When the board is necessary to increase the width to get the double strapping. Joined the board width. To do this, choose completely flat timber, superimposed on each other and are attached to each other with nails or screws in increments of no more than 30 cm.

Fastening cantrail uprights and

Strapping mount with racks can be made in several ways:

- With metal corners.
- With struts.
- Using a notching. Notching is full - the full width of the board and the incomplete when only cut one part of the board.

These attachment methods can be combined. For the strength can be used, such as notching and metal corners, metal braces.

A few important tips:

- To trim can only use well-dried lumber.
- All wood elements should be treated with fire protection materials.
- use the well-known rule: measure twice and cut once.
- After installation of each element in contact with the outer part of the wall, check for leaks.
- Constantly vymeryat vertical.
- Each compound must be firmly secured.
- When working with the top strapping do not forget about safety when working at height.

In the next article we will discuss about the interface types of the rafters in ridge.