Tutorials Talk:Roofing

Types:
1. roof tool based

2. bp-cfe based:
2a. porch roofs 
2b. pagoda roofs
2c. curved roofs
2c1. Arc-shaped
2c2. wavy
2c3. Gabled
2c4. randomly-shaped

3. roof tools + bp-cfe
3a. complex roofs

4. Misc./others
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