Mansard roofs with nearly vertical faces can boast a pitch of 20 in 12.
Pitched roof domes.
Keylite flat roof domes frd are thermoformed from triple skin construction.
The largest roof dome built in western europe since the pantheon is brunelleschi s octagonal brick roof dome for the florence cathedral or ii duomo in florence italy completed in 1436.
Keylite flat roof domes can be supplied with a clear or frosted finish.
Triple skin polycarbonate clear or frosted and pvcu 300m splayed upstand.
Pitched roofs begin with with slopes greater than 3 in 12.
Curb mount pitched glass for flat or pitched roofs designed to mount at a minimum 3 12 pitch onto 1 1 2 wide flashed curb by others.
Polycarbonate is virtually unbreakable with an impact strength 250 times greater than glass.
The 45 degree roofs seen on a frame houses are 12 in 12 but roofs can be even steeper consider the mansard roofs introduced by french second empire architects in the middle of the 1800s.
Keep in mind the rafter approach can take several days and up to 3 weeks to complete a suitable frame.
Curb mount fixed glass curb mount venting glass.