Exposed steel framing contributes to the loft-like feel of the new headquarters for Pixar Animation Studios in Emeryville, CA.
Why did factories have those typical sloped roofs back in the early 20th century? Wouldn't a simple flat roof cost a lot less? - Quora
![12. Detail, trusses and glazing of sawtooth roof, west bay, view to east. - Interurban Electric Railway Bridge Yard Shop, Interstate 80 at Alameda County Postmile 2.0, Oakland, Alameda County, CA | Library of Congress 12. Detail, trusses and glazing of sawtooth roof, west bay, view to east. - Interurban Electric Railway Bridge Yard Shop, Interstate 80 at Alameda County Postmile 2.0, Oakland, Alameda County, CA | Library of Congress](http://tile.loc.gov/storage-services/service/pnp/habshaer/ca/ca2000/ca2002/photos/042514pv.jpg)