my wife and i have been batting around the idea of taking the 1970's roof design off of our house, and making it much better.
let me draw you a mental picture. my roof is pancake flat. all okay, but some 1970's house designer thought it would look smashing to put a parapet around the entire thing. to get on my roof of the main house, i have to climb onto the garage flat roof. take a aluminum 5-6 foot ladder and lean it against the parapet wall..then take another 5-6 foot ladder and lift it over the parapet and lean it against the wall from the other side. then i can climb up a ladder and down the other side. rain runs to the corners and flow into scuppers. i am at the mercy of my neighbors oak trees. i climb up annually to clear leaves. all well and good, but i am not getting any younger.
in a siege, the parapet would be nice to duck behind to reload 
i want to take the entire roof off and install a semi sloped roof. modern looking. then i can do some fascia updates, some new windows, new modern garage door, etc. make it look nicer and less "brady bunch neighborhood". maybe even SOLAR!!
i was just visiting my friends full house remodel. i was halfway talking chit and i told asked the Contractor (who told me he was retiring after that job), "you should do my house before you retire!". he is doing a great job, and it was a design/build thing. full drawings and everything.
he just told my wife for us to give him a call and get a cost estimate.!! yikes!! he will do our job before he retires! . i really want to do it..install some real lighting and stuff on the insides while i am at it, some vent-able skylights.
just a pic to show the idea of a remodel.
