>> welcome to the brown bag lunch, i am lawrence cornfield. we are here at beverly prior's law office. we are going to look at one of the greenest business office spaces in san francisco. you just celebrated the first anniversary of your green office space >> there are many elements. what we're celebrating, what you say it's one of the greenest office buildings. it's the contribution methodology. the materials mechanical systems that we look at. we are using recycles materials. how off gases. >> all focussed toward the goal of reducing impacts? >> exactly. we are using materials that are rapidly renewable. there's another aspect. there are many aspects to being green >> what lead you to this green office? >> it's an interesting story. these kinds of thing start with gee, it's time to find a new office of our idea has evolved over time. how do we work together? what kind of space do we want that will support what we want? we have very ambitious goals. all those things started to factor in. we had a brain storm session and made it clear, it's no

i'm lawrence cornfield, chief building inspector. building code is very interesting, it addresses things beyond the structure of the building and the steel and the floor. it addresses things that make people comfortable. so how fast the elevator goes is the sort of thing that the building code addresses that are sort of social issues. for example, mod yuls of elasticity of flor. you want to stiffen the floor so you don't feel uncomfortable. >> one thing you don't want to have happen, you're sitting at a desk and someone is walk down the hallway. if a floor wasn't designed correctly, your body would actually perceive the vibration and it will be annoying to you. so there is design criteria not just for strength but for vibration control of something called foot fault. >> it all comes down to sort of the nonsafety nonstructural elements which are people being comfortable and in high-rise buildings that has a woal lot of factors. it includes elevator speed, includes how much a building can sway. >> includes the air. keeping a building c