typewriters are old.. they probably call them keyboards nowadays. lol jk
"We can judge the heart of a man by his treatment of animals" - Immanuel Kant
Why not use metal roofing? I realize the initial cost would be more, but it would last a long time. Around here there are people who advertise "seconds" every so often on Craigslist. I would think one time and you would be good to go.
That fiber resin roof I use is pretty good at deflecting heat... seems to last long