Rainfall affects the construction

contractor or home builder company รับสร้างบ้านโคราชAnnual rainfall must be monitored in the area where the building will be constructed, affecting the design and construction of the building’s roof. whether it is the material used to build the building and details for the construction of exterior walls. In addition, we should always take into account that when there is a building and if it rains Rainwater will not seep into the soil immediately. Instead, water flows from the roof of the building and from the surface covered with various construction materials, creating a large amount of strong water flow above the soil surface. Therefore, good drainage from the site is required. building constructionรับสร้างบ้านราชบุรี

• Rainwater Storage May store spare rainwater for use when necessary. but will make the roof welcome more weight

• Flat roofs require internal roof drains or scupper drains, which are drilled along the sidewalls on the surrounding roof.

• In winter, flat roofs need to be careful about the snow load. A layer of snow can be an insulator.

• A properly sloping roof will help drain rainwater well. But it may not be good enough to drain the snow.

• eaves overhang It can help protect building walls from sunlight and rain.

• Very sloping roof. Helps to drain rain water very quickly. If the roof angle is higher than 60°, snow will be drained and flow down from the roof well.

• Gutters and rainwater drains to sewers. or to a large wastewater source

17. Drainage at the construction site (Site Drainage)

The construction of the building may obstruct the existing natural drainage channels. It also caused more surface water to flow from water flowing down from the roof. and from the natural surface of the soil being concealed by buildings, roads or entrances. from that cause Therefore, water cannot be drained into the natural soil surface as before. Reducing the obstruction of natural drainage Allowing water to seep into the soil surface, such as planting roof coverings to slow down the flow of water. A drainage system at the construction site is therefore necessary to prevent erosion and accumulation of water that must be drained to the surface. or underground caused by the construction of new buildings

There are two basic types of drainage: underground drainage systems. and drainage system on the ground

underground drainage system It consists of a network of underground sewer systems. to transport water to the disposal system or the wastewater source that is lower in the construction site If there is too much groundwater, the strength of the soil to withstand the foundation will be reduced. This increases the water pressure on the foundation of the building. Therefore, the structure of the basement building which is near or below the groundwater level. Should have to use various waterproof materials.

Surface drainage depends on the slope and surface material of the construction site. In order to drain rain and other surface water. into the public drainage system A pond or pond may be needed. For the case of rainwater on soil and other surface waters more than the capacity of the public sewer to rest for a while

• The surface should have a slope of at least 5% to drain water from the building. and should be able to allow at least 2% of water to penetrate the surface into the ground

• Most groundwater comes from the amount of surface water that seeps through the loam layer.

• Curtain or intercepting drain, positioned between the groundwater source and the area to prevent water ingress.

• French Drain is a type of curtain drainage ditch. It consists of pebbles and rubble.

surface slope for surface drainage

• 1.5 to 10% for lawns or meadows.

• 2 to 3% for road surfaces.

• The lowland area is the lower area for collecting and draining the soil surface. The slope of the lowland region It should look like this:

• 1.5 to 2% for turf.

• 4 to 6% for road surfaces.

• Water intake point collects water from the basement floor. or the surface area that is covered with a topcoat

• gravel or rubble underground wells will receive water on the surface of the soil to be stored and give water gradually seeps out from the side to the ground

• The sump will receive water flowing and draining on the soil surface. to set aside and cause sediment to precipitate before it flows into the sewer

• Culvert is a drainage channel under the road surface or pavement.

• The receiving area can be designed to be a pond or swamp.

• An area that has been built into a pond or swamp. can be designed as a wastewater treatment source according to the process of improving water quality as well

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