Roof Snow Load Map Maine

Ground snow loads of 684 communities listed aphabetically by town name.

Roof snow load map maine.

If you live in the us our snow load calculator compares the total weight on your roof with the permissible load calculated according to the standards issued by the american society of civil engineers regarding the minimum design loads for buildings and other structures asce7 16. Use ibc 2003 50 psf 100 psf with case study areas. The state has amended the snow load requirements from the ibc and a snow load map may be found at. The snow load that is applied to our structure is not the ground snow load but in most cases the flat roof snow load.

Non shaded cs areas require site specific case studies to establish ground snow loads. You only need to fill in either the city and state or the zip code. The north zone design live load equates to 40 pounds per square foot the middle zone equates to 30 pounds per square foot and the south zone equates to 20 pounds per square foot. In our case let s assume that our structure has a flat roof roof slope 5.

Other considerations for sloped roofs can be found throughout chapter 7 of asce 7 10. Roof snow loads are based on the historical records for ground snow loads for a given location however the local building authority should always be consulted to determine the correct roof snow load to use for a given site and application. Purpose of this web site. This downward imposed load on the home is also known as the snow load.

We have a metal roof though it s slope is very shallow nearly flat 1 of vertical drop for every 10 horizontal. In this area it seems like everyone is falling in love with metal roofs. Each state has a listing of building code and applicable guidelines for snow loads as well as details about where the snow load information may be found or purchased. You can check with the county to find it s required minimum snow load numbers.

The flat roof snow load is calculated using formula 7 3 1. The publication is 20 and may be purchased from msu civil engineering at 406 994. The ground snow load map shown below was scanned from the asce 7 10 figure 7 1. The purpose of this web site is to provide ground snow load analysis information and data gathered from all 50 states.

The minimum design roof snow load after allowed reductions shall be 30 psf. A b c d e f g h 1 j k l m n o p q r s t u v w y. Groundsnowbyzip is a tool for architects engineers and builders to easily determine the ground snow load figure 7 1 table 7 1 for alaska of asce 7 05 for any location in the continental united states to determine the design ground snow load fill in the address below. The north zone middle zone and the south zone are identified on the roof load zone map above.