. >> while we are talking about solar photoable tech. let's talk about the green issues related to roofs. there were changes to the state law regarding roofing. you have been involved in that you want to talk about the reflectist issues. in october of 05 california adopted a new ordinance related to the surfacing of your roof. >> california energy codes. >> yep. >> it has become part of your calculations of your building or residents. not held ark countable to it. it's commercial. the roof has to have reflecti reflectivity. the white roof is the only roof that meets those requirements. however you get it there it needs a white coating or white this is a rubber roof. it meets the requirements. california's leading the way. it's not happening in many of the other states. here we are held accountable to that. there are caveats to that. residential is not accountable to that. >> addition spaces only. >> for heated or cooled buildings? >> right. >> right. >> commercial is obviously. >> that's the big area it's happening. >> i think we will se