Forming a Hobbit House
Engineers - not wizards - were needed to design the concrete roof of this...
Installing a Green Roof
Interlocking pre-grown panels add little dead load to the roof.
Q&A: Blotchy Shingles
Q: The shady part of a customer’s roof is stained with round, pea-green growths on the asphalt shingles. The round spots are of various sizes, and they are not fuzzy like moss. A bleach solution does not remove these growths. What are they, and how can I
Resources: Green CD
Environmental newsletter on CD-ROM, roof framing manual
Leakproof Details for Shallow Roofs
Conventional steep-slope roofing materials can be made watertight even on low slopes. Here are some details and techniques that work.