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Building Codes and Loads

• If Mesco is determining the load requirements for your project , you MUST identify the state and county where the building is going to be built.  Mesco will determine the minimum load requirements based on MBMA and ASCE data.  Mesco is not responsible for determining the exact loading conditions for your local building inspector requirements.  Code and Loads as supplied by Mesco must be verified by the Customer as acceptable for the local building requirements.

• Building code and year can be determined by contacting your local building department.  For areas that do not require building permits, we recommend that you allow Mesco to determine your minimum load and load requirements.
• Roof Live load - Loads produced by maintenance activities, rain, erection activities, and other movable or moving loads not including wind, snow, seismic, crane, or dead loads.  The minimum roof live load is 20 psf.  In some areas building codes allow a reduction in the live load based upon the minimum area an individual member will support.  The minimum load under live load reduction is 12 psf.  In areas where the snow load is minimum (less than 15psf), live load reduction is usually allowed.
• Ground Snow Load - Load produced by falling snow as measured on the ground.  Ground snow is converted to Roof Snow Load as calculated to act on the horizontal projection of the roof.
• Wind Load - The load on the structure induced by the forces of wind blowing from any horizontal direction.
• Collateral Load - The weight of any non-moving equipment or material, such as ceilings, electrical or mechanical equipment, sprinkler systems, plumbing, or ceilings.
• County - The county and state where the building is going to be erected.  County is required to verify the minimum loads allowed in any certain area.