
Static load on a raft foundation
Storyboard 
To design the raft foundation properly, it's essential to understand the load it will bear from the weight of roofs, walls, and any additional imposed loads. A simpler model assumes that each element does not deform and behaves like a rigid body. This allows for calculating how the various forces are literally channeled towards the walls in contact with the raft foundation.
In particular, the following components are considered for:
Walls:
• SIP panel
• Exterior siding
• Interior drywall
Mezzanine forming the ceiling for the first floor:
• SIP panel
• Interior drywall
• Warehouse and hallway overburden
Roof:
• SIP panel
• Zinc colonial tile
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