Crrel and senh then entered into a cooperative research and development agreement crda to determine ground snow loads for 140 new hampshire towns in the cs zone of the snow load map in the 1995 edition of asce standard 7 i e asce 7 95.
Roof snow load new hampshire.
But a new product from a barrington design and manufacturing company could give building owners and municipalities an early warning when heavy snow loads are making roofs dangerously.
Ground snow loads derived from new hampshire snow load study ercd crrel tr 02 6.
Having a higher snow load means the framing materials used on the roof must be bigger.
The majority of nh requires case studies to determine ground snow loads in a specific community.
Use our roof snow load calculator to determine your design roof snow loads.
The purpose of this web site is to provide ground snow load analysis information and data gathered from all 50 states.
The epic snow this season has led to hundreds of people in new hampshire being displaced by roof collapses and kept structural engineers and fire departments busy.
In the scale of things a small cost compared to the whole project.
You will notice a table in the pdf which contains tables of several towns and the maximum snow loads ever achieved.
Schilke civil agricultural engineering montana state university august 1989.
That s about 4 feet of powder and as little as 2 feet of wet snow.
The minimum design roof snow load.
Purpose of this web site.
Case studies have been performed for all cities towns and unincorprated townships in the state and are available in the publication ground snow loads for new hampshire us army corps of engineers erdc crrel tr 02 6 february 2002.
You should take note that franklin nh had a 94 psf snow load once.
Unfortunately most buildings constructed during those years 1970 2000 do not even meet the 40 psf requirement.
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.
The same snow load map is in asce 7 95 and asce 7 98 and will be in asce 7 02.
Local codes and ammendments may govern verify with local building department or jurisdiction.