This Old House expert home improvement advice, step-by-step projects, how-to videos, and more on roofs and roofing material selections, planning, installation, replacement, maintenance, and repair. Information on roof pitch, flat roofs, green roofs, flashing, shingles, roof leaks, and more.
Roofing: Featured Article
Bats in your belfry? The humane (and legal) way to remove them is through a process called "exclusion." Here's how… more
More on Exteriors
Q: What is the purpose of the one-by's I see under all the floor and
ceiling joists on the show? Do you think this is a better insulation for
the sheet rock, and do you also do it with roof trusses?
Joe, Bordentown, New Jersey
Put skylights near walls to scatter and reflect light, or better still, create a splayed opening rather than the standard squared one to spread the light even further.