Spokane County Roof Load

We began by removing the old roof down to the wooden roof deck.

Spokane county roof load.

All roofs must be designed to sustain loads as follows. This is a requirement for homeowners insurance in washington state and has been built into the local building codes to prevent the use of inferior roof covering products and to help facilitate updating homes from the old roofing products to the new roofing products. Roof loads are a downward vertical force on the home. Monday may 23 2016.

Thursday june 30 2016. Next we installed the new roof before wintry weather arrived. Roof coverings such as shingle tiles rubber plastic or metal must be rated as a class a fire retardant material. The new single ply tpo membrane roofing system comprised these materials.

1 dead loads plus a minimum unit live load of 30 lb ft2 2 months load duration. However areas within spokane county have snow loads as high as 150 pounds per foot. And 2 a vertical net uplift load of 9 lb ft2 1 day load duration. Roof load live load design is affected by the shape of the roof whether it is flat curved or pitched.

In coeur d alene roof load limits are set at 40 pounds a square foot. However a south roof load zone home cannot be installed in either a middle or north roof load zone. The kootenai county commission voted thursday to reduce the requirement for how much snow the roof of a mobile or manufactured home can hold to comply with federal rules. If you have any questions or concerns about specific ground snow loads within the state of washington please call us at 1 425 741 5555.

The basic minimum roof snow load for spokane county is 30 pounds per foot. Ord c35389 section 7. 800 27 codes hours monday thursday 7 30 a m. Spokane county and the city of coeur d alene s building officials said not including smaller structures.

This number provided is the ground snow load which must be. The scout mapping system available on the county website has snow load maps available on one of the layers to the public. Use our roof snow load calculator to determine your design roof snow loads.