Date:

Customer: Contact person:

Telephone: Fax: E-mail:

Project name:

Site address:

Terrain type

Choose relevant terrain type:

Region/City:

Wind speed at site (m/s):

Building

Height (m):

Width (m):

Length (m):

Type of roof:

Pitch of roof:

Type of roof eave:

Parapeter heigth (mm):

Subsurface for membrane and thermal insulation

Type of roof deck:

Thickness (mm):

Quality:

Subsurface of profiled steel sheets

Profile:

Distance between ribs (mm):

Roof membrane

Membrane type:

Membrane width (m):

Washer/tube type:

Fastener type:

Thermal insulation

Insulation type:

Board size (m x m):

Insulation thickness (mm):

Responsible informant

Name: Signature:

Safety coefficient Yq (wind load)

Internal pressure coefficient Cpi

Air open roof deck

Buildings with normal openings (0,2)

Buildings with dominant openings (0,7)

Buildings with one or two faces fully open (0,9)

Air tight roof deck

ORdeR fORm - WInd lOAd CAlCulATIOnBS EN 1991-1-4/NA:2011

SeaSea or coastal area exposed to the open sea.CountryLakes or flat and horizontal area with negligible vegetation and withoutobstacles. Area with low vegetation such as grass and isolatedobstacles (trees, buildings) with seperations of at least 20 obstacleheights.

TownArea with regular cover of vegetation or buildings or with isolatedobstacles with separations of maximum 20 obstacle heights (such asvillages, suburban terrain, permanent forest) Area in which at least15% of the surface is covered with buildings and their average heightexceeds 15m.

Main construction element (YQ=1,5)

Secondary construction element (YQ=1,25)

ORdeR fORm - WInd lOAd CAlCulATIOnSketch area for non square roof shapes