1 2d 1 0e l 0 2s when h loads are present they shall have 6.
Green roof dead load psf.
3 3 dead loads dead loads consist of the permanent construction material loads comprising the roof floor wall and foundation systems including claddings finishes and fixed equipment.
Cubic feet of water as determined according to astm e2397.
Soil does not necessarily occupy the full depth of the assembly.
The venny green roof has shallow substrates on two types of roof the first roof is on shipping containers and is designed for a dead load of 250kg m 2 and live load of 100kg m 2.
Factors that influence.
Minimum design loads for buildings and other structures location uniform load psf.
Minimum uniformly distributed live loads adapted from sei asce 7 10.
0 9d 1 0w a load factor of 1 6 when adding to load 7.
30 psf snow load.
0 9d 1 0e effect or 0 9 when resisting the load when permanent.
26 psf total live load 30 psf total dead load 56 psf factored loading.
Vegetated roofs shall retain a minimum of x c f.
The values for dead loads in table 3 2 are for commonly used materials and constructions in light frame residential buildings.
The second most common conservative assumption found in the industry is to assume that the green roof is a soil load rather than a dead load.
30 psf extensive green roof system.
Many factors influence how a system responds to loading.
Minimum system dead load of psf pounds per square foot determined according to astm e 2397 05 and e 2399 05.
Af pa s appendix a lists a variety of live and dead load combinations for floors ceilings and rafters.
The second trussed roof is designed for a dead load of 160kg m 2 and a live load of 40kg m 2.
For example appendix a indicates that one type of clay tile roof system has a live load value of 20 psf and a dead load value of 15 psf.
On a roof with a slope greater than 4 to 12 the live load limit is typically adjusted downward from 20 psf to 15 psf to allow for the relatively greater dead load on the steeper roof.
1 2 d 1 6 l 0 5 s 1 2 26 psf 1 6 30 psf 0 5 30 psf 94 2 psf pcaslab.
