roof is part of:

roof contains:
    80%  low-slope
    80%  medium-slope
     0%  inverse-slope

Full expansion for roof:
   100%  1x2 Medium-Slope Apex Brick
   100%  1x2 Medium-Slope Brick
   100%  1x3 Low-Slope Brick
   100%  2x2 Low-Slope Apex Brick
   100%  2x2 Medium-Slope Apex Brick
   100%  2x2 Medium-Slope Brick
   100%  2x2 Medium-Slope Concave Corner Brick
   100%  2x2 Medium-Slope Convex Corner Brick
   100%  2x2 Medium-Slope Gable-Apex Brick
   100%  2x3 Low-Slope Brick
   100%  3x2 Low-Slope Apex Brick
   100%  3x2 Medium-Slope Apex Brick
   100%  3x2 Medium-Slope Brick
   100%  3x3 Low-Slope Brick
   100%  3x3 Low-Slope Convex Corner Brick
   100%  4x2 Low-Slope Apex Brick
   100%  4x2 Medium-Slope Apex Brick
   100%  4x2 Medium-Slope Brick
   100%  4x3 Low-Slope Brick
   100%  6x2 Inset Medium-Slope Brick
   100%  6x6 Dual-Low-Slope Brick
   100%  8x2 Medium-Slope Brick
    80%  1x2 Half-Pyramid Medium-Slope Brick
    80%  1x2 Inverse-Medium-Slope Brick
    80%  1x2 Sloped Brick w/ 12-Key Telephone
    80%  1x2 Sloped Brick w/ 6 Red/Yellow Dots
    80%  1x2 Sloped Brick w/ Insectoids Panel
    80%  1x3 Dual-Inverse-Medium-Slope Brick
    80%  1x3 Inverse-Low-Slope Brick
    80%  2x2 Inv-Med-Slope Convex Corner Brick
    80%  2x2 Inverse-Medium-Slope Brick
    80%  2x2 Medium-Slope Brick w/ Race "2"
    80%  2x2 Medium-Slope Brick w/ Race "3"
    80%  2x2 Medium-Slope Brick w/ Race "4"
    80%  2x2 Medium-Slope Brick w/ Race "5"
    80%  2x2 Medium-Slope Brick w/ Race "6"
    80%  2x2 Sloped Brick w/ 12-Key Telephone
    80%  2x2 Sloped Brick w/ 7 Black Lines
    80%  2x2 Sloped Brick w/ Airplane Display
    80%  2x2 Sloped Brick w/ Classic Space "+"
    80%  2x2 Sloped Brick w/ Classic Space Scrn
    80%  2x2 Sloped Brick w/ Digital "15.00"
    80%  2x2 Sloped Brick w/ Fish Readout
    80%  2x2 Sloped Brick w/ Gold/Red Panel
    80%  2x2 Sloped Brick w/ Headlights
    80%  2x2 Sloped Brick w/ Hydronauts Panel
    80%  2x2 Sloped Brick w/ Phone/Cop/Tape
    80%  2x2 Sloped Brick w/ Radar Display
    80%  2x2 Sloped Brick w/ Roboforce Eye
    80%  2x2 Sloped Brick w/ Roboforce Panel
    80%  2x2 Sloped Brick w/ Spyrius Azimuth
    80%  2x2 Sloped Brick w/ Spyrius TV Panel
    80%  2x2 Sloped Brick w/ Stingrays Panel
    80%  2x2 Sloped Brick w/ Submarine Grid
    80%  2x2 Sloped Brick w/ Train Gauges
    80%  2x2 Sloped Brick w/ Unitron Panel
    80%  2x2 Sloped Brick w/ White Curly "3"
    80%  2x2 Sloped Brick w/Aquaraiders Panel
    80%  2x2 Sloped Brick w/BlackFace,12+3 Dots
    80%  2x2 Sloped Display w/ Planet in Space
    80%  2x3 Inverse-Low-Slope Brick
    80%  2x3 Low-Slope Brick w/ "R.E.S. Q"
    80%  2x3 Low-Slope Brick w/ "SPACE POLICE"
    80%  2x3 Low-Slope Brick w/ IcePlanet Logo
    80%  2x3 Low-Slope Brick w/ Race "1"
    80%  2x3 Low-Slope Brick w/ Race "2"
    80%  2x3 Low-Slope Brick w/ Race "3"
    80%  2x3 Low-Slope Brick w/ Race "4"
    80%  2x3 Low-Slope Brick w/ Race "5"
    80%  2x3 Low-Slope Brick w/ Race "6"
    80%  2x3 Medium-Slope Brick w/ Race "1"
    80%  2x3 Sloped Brick w/ Blue/Yel Triangles
    80%  2x3 Sloped Brick w/ Exploriens Logo
    80%  2x3 Sloped Brick w/ Extreme-Team Logo
    80%  2x3 Sloped Brick w/ Gold/Blue "ROBO"
    80%  2x3 Sloped Brick w/ Hydronauts Decor
    80%  2x3 Sloped Brick w/ Insectoids Panel
    80%  2x3 Sloped Brick w/ Red Stripes
    80%  2x3 Sloped Brick w/ Red/Yel Triangles
    80%  2x3 Sloped Brick w/ Stingrays Gills
    80%  2x3 Sloped Brick w/ UFO/Crosshairs
    80%  2x3 Sloped Brick w/ White Stripes
    80%  2x3 Sloped Brick w/ Yellow Triangles
    80%  2x3 Sloped Brick w/Mouse/Rabbit Face
    80%  2x4 Dual-Inverse-Medium-Slope Brick
    80%  2x4 Sloped Brick w/ Headlights
    80%  3x4 Sloped Wheel-Well Brick
    80%  3x4 Sloped Wheel-Well Headlight Brick
    80%  3x4 Sloped Wheel-Well Headlight Brick w/ Fire Logo
    80%  3x4 Sloped Wheel-Well Headlight Brick w/ Police Badge Logo
    80%  4x3 Low-Slope Brick w/ "R.E.S. Q"
    80%  4x3 Sloped Brick w/ 8 Flowers
    80%  4x3 Sloped Brick w/ Blue/Yel Triangles
    80%  4x3 Sloped Brick w/ Red Stripes
    80%  4x3 Sloped Brick w/ Red/Yel Triangles
    80%  4x3 Sloped Brick w/ White Stripes
    80%  4x3 Sloped Brick w/ Yellow Triangles
    80%  4x4 Dual-Inverse-Medium-Slope Brick
    80%  4x4 Sloped Brick from 2152
    80%  4x4x1 Dual-Sloped Brick w/ HingeSlots
    80%  6x3 Low-Slope Brick
    24%  2x8x2 Trapezoid. Arch Brick, ToolDeco
    24%  2x8x2 Trapezoidal Arch Brick
     8%  2x8x1.3 Car Chassis w/ 4 Tiny Pegs
     8%  4x10x1.6 Car Chassis w/ 4 Tiny Pegs
     0%  1x2x3 Inverse-Extreme-Slope Brick
     0%  3x3x2 Inverse-Quarter-Dome Brick
     0%  4x11x2.3 Angular Cockpit Bottom
     0%  4x3x4 Inverse-Slope Windshield
     0%  4x4 Angular Cockpit Bottom
     0%  4x6 Notched Multi-Tapered Nose Brick
     0%  4x6x1 Angular Cockpit Bottom