What is the appropriate slope of a sloping roof? I would like to know how to calculate the slope of

Generally, more than 10% of the roof is called a slope roof or a sloping roof, and the slope of the roof with a single slope span of more than 9m should be used as a structure to find the slope, and the slope is the steepness of the surface unit, and the ratio of the vertical height and horizontal width of the slope is usually called the slope. The slope of the roof is selected reasonably, so as not to affect the waterproof effect of the roof, and the slope is mainly determined by the performance and structure of the roof waterproof layer material. Generally, the ordinary house is 30 degrees, the roof of the factory is mostly 15 degrees, the slope of the light steel roof is 5 degrees, and the slope is the largest to 75 degrees.

Houses with sloping roof structure generally refer to the normal drainage slope of the roof, which is less than a certain standard range, and water accumulation will be formed and the burden on the house will be increased. Generally suitable for concrete roof structure, the minimum drainage slope of the general standard is five thousandths of the span of the house, that is to say, if the total width of the house is 100 meters, the slope should not be less than meters! Here is also a special emphasis:

If the roof is tiled, the standard is 10° or more and less than 75°. depending on the structure of the house.

The geographical location and tile roofing material determine the final slope size!

Interpretation]: "Technical Specifications for Slope Roofing Engineering".

GB 50693-2011 refers to:"Slope 3% of the roof"。

Reasons for the rise]:

1)"Sloping roofs are good for waterproofing"。

2)"Sloped roofs can use more area"。In the past, residential buildings were subject to area index control, and the top floor residents could reserve the floor height and slope roof space"Steal out"For the area of one or half floors, it is now necessary to plug the leaks of the reserved method of welfare housing - taking into account the possible factors of adding layers in advance. Therefore, the premise of making extra money no longer exists, and this reason is not valid.

3)"The slope roof is beautiful"。Single-storey and low-rise slope roof buildings, because they can be hidden in the green trees, are beautiful from a distance and up close; The undulating multi-storey sloping roof building is also easy to hide in the trees, which makes people get a beautiful visual experience.

I don't know where to standardize upstairs, is it a summary of experience?

The following quote from the "Technical Code for Roofing Engineering GB50345 2004":

Structural design. The roof with a single slope span of more than 9m should be used as a structure to find a slope, and the slope should not be less than 3.

When the material is looking for slope, you can use lightweight material or insulation layer to find the slope, and the slope should be 2.

The longitudinal slope of the gutter and the eaves should not be less than 1, and the water drop at the bottom of the ditch should not exceed 200mm; Gutters and gutters shall not flow through deformation joints and firewalls.

The direction of coil paving shall comply with the following provisions:

1. When the roof slope is less than 3, the membrane should be paved parallel to the ridge;

2. When the roof slope is 3 15, the membrane can be paved with parallel or perpendicular ridges;

3. When the roof slope is greater than 15 or the roof is vibrate, the asphalt waterproofing membrane should be paved vertically with the ridge, and the polymer modified asphalt waterproofing membrane and the synthetic polymer waterproofing membrane can be paved with parallel or perpendicular ridges;

4. The upper and lower layers of coils shall not be perpendicular to each other.

The laying method of the coil shall comply with the following provisions:

1. When there is a heavy object covering the waterproof layer of the membrane or the deformation of the base layer is large, the empty paving method, point sticking method, strip sticking method or mechanical fixing method should be preferred, but within 800mm from the roof perimeter and between the layers of membrane paved by stacking should be fully adhered to;

2. When the waterproof layer is constructed by the full adhesive method, the lattice joint of the leveling layer should be empty, and the width of the empty layer should be 100mm;

3. The slope of the membrane roof should not exceed 25, and measures should be taken to prevent the membrane from sliding when the slope exceeds 25.

First of all, I personally suggest that the slope of the villa roof is between 15 and 30 degrees is the most appropriate, when the slope of the inclined roof exceeds 30 degrees, it is not easy for people to stand or walk on the slope of the roof, which will increase the difficulty of the construction personnel or the later maintenance, and there are certain safety hazards. If the slope head of the inclined house is less than 15 degrees, it may cause poor drainage or water leakage.

Calculated using the cotangent function.

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The most commonly used method for representing the slope, i.e., the percentage of the difference in elevation between two points and their horizontal distance, is calculated as follows: slope elevation difference horizontal distance) x 100%.

When expressed as a percentage, i.e., i=h l 100

For example, a slope of 3% refers to a horizontal distance of 3 meters per 100 meters and a vertical rise (descent); 1% refers to the horizontal distance of every 100 meters, vertical rise (fall) 1 meter. And so on!

A roof slope of 30 degrees is the best slope.

The slope of the sloping roof is from 10 to 60 degrees, more than 10 degrees is the sloping roof, 30 degrees is the best slope, the top surface is reduced by stress, and it is easy to drain. The slope of the roof is generally 30 percent, and the slope of the sloping roof is generally 10 to 60 percent. A roof with a slope of more than 10% is a sloping roof.

The top floor of the roof building is not separated from the outside by the outer envelope, which can play a role in resisting rain, snow, sun, cold, heat insulation, etc.

In areas with heavy rainfall, the possibility of roof leakage is greater, and the drainage slope of the roof should be appropriately increased, on the contrary, the drainage slope of the roof should be smaller. The slope of the structure should have a drainage slope of the roof structure itself, and the slope of the flat roof structure should be 3%. The material slope canopy surface is flat, but the roof load is increased; The structure is slope-finding, the structure is simple, and the load is not increased, but the ceiling roof is inclined and the indoor space is not complete.

Factors influencing roof slope:

If the size of the waterproof material is small, there will inevitably be more joints, and it is easy to leak the gaps, so the roof should have a large drainage slope in order to quickly remove the water on the roof. If the waterproofing material of the roof covers a large area and the joints are few and tight, the drainage slope of the roof can be smaller. <>

Summary. For the slope of a sloping roof, in general, the appropriate slope is determined according to different geographical and climatic conditions. In some cold regions, it is advisable to choose a steeper slope to allow the snow water to flow smoothly and prevent water accumulation and freezing.

In warmer regions, you can opt for a slightly gentler slope to better absorb the sun. Overall, proper slope can help drain the roof, extend the life of the roof, and help keep the house warm. As a rule of thumb, slopes in the range of about 20° to 30° are more common and appropriate.

For the slope of a sloping roof, in general, the appropriate slope is determined according to different geographical and climatic conditions. In some cold regions, it is advisable to choose a steeper slope to allow the snow water to flow smoothly and prevent water accumulation and freezing. In warmer regions, you can opt for a slightly gentler slope to better absorb the sun.

Overall, proper slope can help with roof drainage, extend the life of the roof, and help keep the house warm. As a rule of thumb, a slope of around 20° to 30° is a more common and appropriate choice.

Can you tell us more about that?

The slag extraction key of the slope slope of the suitable slope depends on the regional and climatic conditions. In cold areas, it is advisable to choose a steep slope to prevent water accumulation and freezing, and in warm areas, a slightly gentler slope is available to absorb solar energy. The right slope can help with drainage, extend roof life and keep you warm.

As a rule of thumb, a slope of 20° to 30° is a common and appropriate choice.

15-30 degrees.

When the slope of the inclined roof exceeds 30 degrees, it is not easy for people to stand on the inclined roof or to walk, which will increase the difficulty of the construction personnel or the later maintenance, and there are also certain potential safety hazards. If the slope of the slope is less than 15 degrees, it may cause poor drainage or water leakage.

Disadvantages of sloping roofing:

Technically speaking, there are at least two drawbacks of sloping roofs: one is a waste of space resources, and the other is an increase in the urban heat island phenomenon. If the flat roof is designed as a planting roof, the planting roof can provide a convenient outdoor activity environment for the residents on the upper floors, which is equivalent to increasing the area of urban green space, and at the same time is conducive to the thermal insulation and energy saving of the roof.

Planning of sloping roofs:

It is also unreasonable for the roof of the slope hall to be included in the unified planning requirements. The planning only controls the nature of use and the floor area ratio (in operation, according to the detailed regulations adopted by the legislation), and the façade form is left to the architect to solve, which is more reasonable. Planning can only be limited in individual areas of Fushen, such as scenic spots, historic sites, etc.

Development of sloping roofs:

If the slope roof wants to achieve long-term development, it must be given a reasonable connotation, that is, it is liberated from the concept of formal beauty, so that it can stand on its feet in terms of aesthetics, technology and sustainable development. <>