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(Swedish)Independent thesis Basic level (university diploma), 15 credits / 22,5 HE creditsStudent thesis. Regelsamlingen för byggande innehåller Boverkets byggregler, BBR, med • Regelsamling för konstruktion – Boverkets konstruktionsregler, BKR, . Building permit. On most occasions, you need a building permit if you wish to build a new house, build an addition to your house or if you want.

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The relationship between the snow load form factor and roof structure is presented below.

The effect of wind load on the roof and wall cladding is determined by the form factor and the characteristic value of wind pressure qk. The form factor m depends on wind direction and the form of the building as presented in the table below and on the next page. The value qk is determined based on the reference wind speed vref, the type of terrain, and the height of the building.


The value of the wind speed vref is selected based on the location of the building. Then find the value qk in the tables according to the type of terrain and the building height. If the wind blows from a certain type of terrain towards a konstrujtionsregler terrain, the wind load remains the same for the first two kilometers of the new type of terrain.

The form factor m is boverkrts for calculating the dimensions of the cladding. If both the length and width of the building are twice as long as the height of the roof ridge, the fixing elements must be selected by taking into account the tensile load in proportion to the following form factor values.

Wind load pull — self-weight.

Boverkets konstruktionsregler eks-10

Wind load on walls. Roof with thermal insulation. Roof without thermal insulation.

The form factor is increased in shadow zones. Form factor m is used for selecting the fixing elements of roofing and determining their dimensions. Form factor maximum values are specified below in roof schemes according to the roof slope.


It is assumed that the length and width of the building are twice as long as the height to the ridge konstruktionsrdgler the roof. Login LT EN e. All measurements are calculated based on the following documents and conditions Sweden: Boverkets Konstruktionsregler BKR 94 design standards.

Regelsamling för konstruktion: Boverkets konstruktionsregler, BKR – Google Books

The tables of roof dimensions do not take wind load into account. The information presented is suitable for single and double pitched roofs. The partial factors method is applied.

The snow load on the roof is defined by the characteristic value skwhich is calculated as the product of the snow load reference value s0 and the form factor m. The snow load reference value depends konsruktionsregler the location of the building.

The load reduction factor Y is found in the following table.