A gutter is the roof of a building. One side or multiple sides or the entire week is made into a concave form with a certain width, and the rainwater on the roof slides down to the gutter along a certain slope, and then drained by the drainage pipe. Roof drainage is divided into organized drainage and unorganized drainage (free drainage). Organized drainage generally collects rainwater into a gutter and then drains it from a rainwater pipe. The gutter that collects rainwater is called a gutter. The gutter is divided into internal gutters. As with the outer gutter, the inner gutter refers to the gutter inside the outer wall, usually with a parapet; the outer gutter is a gutter that picks out the outer wall, and generally does not have a parapet. Gutters are mostly made of tinplate or asbestos cement. In construction, the engineering quantity of the gutter is calculated by volume according to the design size, without deducting the volume of steel bars and embedded iron parts in the components.
The size of the gutter is generally determined according to the width of the upper mouth of the gutter, which is also the most important dimensional parameter. Other dimensions such as the depth of the gutter and the width of the bottom will vary in proportion to the width of the upper mouth. If the product specification is K5, it means that the upper mouth width is 5 inches, and others are the same; one inch is equal to 25.4 mm, K5 is converted into national standard is 127 mm, K6 is 152 mm, K7 is 180 mm, K8 is 200 mm (specifically Dimensions have product drawings). Kruss provides a full range of products in the market in sizes such as 5 inches, 6 inches, 6.5 inches, 7 inches, and 8 inches, and can be customized according to customer requirements. It is currently the only domestic manufacturer with a full range of products.
Chinese cement structure houses have thicker cornices (compared with foreign wooden structures), so you should choose a size of more than 5 inches; in some luxurious villas (large cornices and thick cornices), multi-storey buildings and co-construction clubs, you should choose 6.5 The size of inches and 7 inches ensures that the size of the falling water is coordinated with the appearance of the building.
In terms of the same displacement, the size of the semicircular gutter is one size larger than the size of the K-shaped gutter.
The calculation method of the gutter size is mainly based on the depth of the gutter, and then calculate the time according to the formula, so that the width of the gutter can be obtained. The width of the gutter generally designed cannot be less than the result value obtained. Of course, the height of the gutter cannot be too small, otherwise the water will overflow.
At the same time, the size of the gutter must also meet the drainage capacity, but the premise is that the width and height of the gutter must meet the drainage requirements. This has a considerable relationship with the drainage system. If the drainage system has a strong capacity, then the rainwater bucket If the front water depth is small, the size of the gutter is small. If the drainage system is not strong, a siphon rainwater system can be used to achieve the best value of the gutter size.