Roof slope

Under normal circumstances, a small slope of the roof, the choice of color plates of high peaks, which will help drain; steep slope of the roof, use the low crest color plate, saving cost; specific circumstances, specific treatment.Steel roof top general value of 1/20---1/8, steel roof slope greater value is 1/3--1/5 general, I do drawings generally 1/10 larger span The press 1/15 do. Personal: The value range varies between regions. stone coated metal roofing tileOnly from the perspective of roof drainage, roof slope with two parameters, one single slope length, the second is the roof pressure plate wave height. Roof leaks occur mostly because of heavy rain conditions, rainwater from the roof cornice process flows, water thickness increasing thickness beyond the roof when the waves wave heights will leak.
3%, 4% of small single-slope gradient appears in the shorter works are not uncommon, such as single-slope length exceeds 10m slab should be used when gluing measures or high wave plate. Slab sealant program is also flawed, because as the steel beams under torsion deformation, there is the possibility of cracking slab, roof slope should be selected so that a large number, usually 1:10.(A) roofing project should be based on the nature of the building, it is important extent, the use of functional requirements as well as waterproof layer useful life, etc., in accordance with the "roof project technical specifications" GB50207 requirements, will be divided into four grades of roofing, carried out at different levels of fortification . stone coated metal roofing tile
(Two) roof drainage slope should be based on the form of the roof structure, roof grassroots category, waterproof construction type, material properties and the local climate and other conditions to determine and comply with regulations.
Roof drainage slope
Roof drainage slope roofing category (%)
Waterproof membrane, the rigid anti-flat water ≥ 2
Flat tile 20-50
Pantile 10-50
Shingles ≥ 20
Metal roofing 10-35
Note: a membrane roof slope should not exceed 25%, when the slope exceeds 25% of the measures to be taken to prevent the decline.
2 waterproof membrane roof gutter, gutter longitudinal slope of not less than 1%; ditch water drop must not exceed 200mm. Gutter, gutters, drainage shall flow through Deformation and firewall;
3 When the roof slope exceeds 25%, the inappropriate use of asphalt-based waterproof coatings and coating deposition time is too long;
4 When the flat tile, wave tile roof slope exceeds 50%, linoleum tile roof more than 150% should be fixed to strengthen measures taken;
5 Overhead insulated roof slope should not exceed 5%, planted roof slope should not exceed 3%.
Peace roof sloping roof slope divided by the size of, not the absolute level flat roof is sloping, but it is very small, otherwise unable to discharge roof water. Now there is no strict definition of regulations, waterproof community that slopes greater than 10% (5 ° 48 ') is the sloping roof. Roof slope is less than 5% (2 ° 54 ') system for the flat roof.Why define slope greater than 10%, since 10% of the slope can be used for waterproofing structure, the use of sheet metal. If the slope is less than 10%, can not be constructed waterproof, can only fully enclosed waterproof. If you use a small piece of tile waterproofing, the slope should be greater than 30% (16 ° 45 '), otherwise rainwater intrusion from the tile cracks.
Slope less than 5% of the reason for the flat roof what? Exalted flat roof can not be pummeling preparedness, people can walk on, less than 2% of the slope of the roof, used as a playground, drying yard, cisterns, dance and so on. Flat roof waterproofing material must be completely closed.
Gradient of 5% to 10% between the tile roof structure can neither waterproof nor for Master roof, but can not make playground and reservoirs, the Department for the two kinds of roofing in the form of transition.
Slope greater than 140% (55 °) shall spire waterproof design.

by www.metal-roofing-sheet.com