Calculating the minimum roof slope: useful recommendations

Definition of roof slope. Determination of the minimum bias

The construction concept of "bias" is associated with the inclination of the roof. This is the angle of the slope placement to the horizontal surface. A smaller degree of angle makes the roof slope steeper. Calculation of the angle is based on the principle: the height of the ridge board is divided by 0.5 of the width of the room, in percentage - multiply by 100. Visually: width 20 m and height 5 m divide and get 0.5, multiply by 100 and get 50%.

The minimum inclination angle is affected by the climatic conditions of the terrain. A slope of 30 degrees is used in regions with abundant precipitation. In the arid regions, roofs with a slope of 10-25 degrees are constructed.

Building material - metal tile - is used in the construction of buildings of different complexities. The exception - the minimum angle of inclination for metal tiles is from 14 degrees, not less. Such a slope is capable of withstanding strong gusts of wind, unlike snow that does not have the ability to roll off such a small ramp.

Minimal bias allows you to save on construction materials. Reliability and a solid foundation of the roof will create a wooden crate, a small distance between its boards will make the fastening of the metal tile sturdy.

Some tips for installing and coordinating the minimum roof incline

Important recommendations:

1. Tiles should be laid on a perfectly flat surface, the height of the row can not be more than one meter.
2. Take the layers in construction gloves that protect your hands from damage
3. Hold the layer inedges
4. Secure the metal tile to the crate with construction screws
5. Walk on the roof of metal tiles in a special soft shoe that does not damage the surface toovli not to step on the waves tiles
6. Cutting of metal should be carried out on the pre-circuit, measured off the desired size sheets

preliminary processes:

1. Rafter system must be fully prepared. We measure the rays of the
2. . The existing errors of the triangular shape are eliminated by the additional parts
3. . It is recommended to remove the moisture between the metal roof and the heating layer thanks to the crate( 0.4 centimeter height)
4. . We leave gaps of 0.5 centimeters in the cornice of the
5. .From the edge of the cornice board waterproofing should have a hanging 0.2 centimeters. Joints of waterproofing stelim with overlap of 15 cm.
6. Insulate roofs with special slabs. We lay them between the rafters
7. We apply the next layer - vapor barrier

Detailed acquaintance on the video in the next tab.

Installation of the

crate. The cladding is an important element of the roof. It is installed on the rafter system. It consists of identical boards. They are treated with antiseptic solution. The distance between the boards lying on the edge of the ledge is 30-35 centimeters, the next 35-40 centimeters. Metal tile is attached to the crate on the depressions of the waves.

A drainpipe is screwed to the cornice board, providing a uniform drain of rainwater. The cornice is mounted on the edge of the metal roof with self-tapping screws with a flat head. The coincidence is built up by an overlap of 7 centimeters on average. The continuous crate is used near the chimney. Ends are installed in the inner joints of the roof( lapping - 10-15 centimeters).

Additions for roof installation and installation of its minimum slope

Roof installation provides a complex process and it is simply impossible to avoid important nuances:

1. Do not mount metal tiles in the upper bend of the
2. wave Screws not tight
3. Do not use
4. hammer Screws with special
5. liningcutting metal should use electric scissors or other special tools( do not use the Bulgarian)
6. Do not use construction foam

The roof slope is formed due to the structure of the rafters, they create the angle. Details of the installation of the roof and setting its minimum angle, see the video in the next tab.