BuildaBetterHome.org
Roofs
Both the overall design of the roof and
the finishing materials are important factors in designing a building
to withstand moisture penetration. Download construction details
that keep roofs moisture free. Click 
to download the details as a JPG. At this time, roof construction
details are not available in CAD format.
- Roof Sheathing
Roof system components
APA structural panel roof sheathing
- Underlayment
Single-layer underlayment for steep slope
Underlayment centered in valley
Wood shake application
- Ridge Intersections
Shingle roof ridge details
Slate roof ridge details
Pan and cover tile roof ridge detail
Wood ridge detail for shake- or shingle-type roofs
- Valley Intersections
Typical metal open valley flashing
Closed mitered valley with interwoven valley flashing
Rolled roofing material for open valley construction
Woven valley
- Hip Intersections
Mitered hip with slate roofing and interwoven hip flashing
Asphalt roof hip detail
Hip detail for clay or concrete tile
- Flashing
Drip-edge metal flashing at roof eaves and rakes
Plumbing vent stack with pan-and-cover tile
Chimney flashing step 1
Chimney flashing step 2
Chimney flashing step 3
Chimney flashing step 4
Chimney flashing step 5
Chimney flashing step 6
Counter flashing details
Counter flashing installation on slope
Chimney flashing step 7
Skylight flashing with shingle-type flat roof
Skylight flashing with cover and pan concrete/clay tile
Shingle-type roof at sloped wall-to-roof intersection
Shingle-type roof at horizontal wall-to-roof intersection
- Ventilation
Cathedral ceiling with continuous ridge vents
- Ice Dams
Sealed asphalt saturated felt underlayment
Asphalt saturated felt underlayment
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
Download a PDF of the BBH Roofs Brochure