Browsing all posts in Paul Graham.
Rain Water Harvesting
Rainwater harvesting captures, stores, and diverts rainwater for later use. The captured water is used for landscape irrigation because the water is free of salts and other harmful minerals and does not have to be treated. Capturing rainwater for the landscape not only makes great use of a valuable resource, it can also save money [...]
Cool Metal Roof
This house has an ENERGY STAR ® rated cool roof system in Dallas, Texas. The reflectivity property of the ‘cool metal roof’ allows this home to reduce its energy costs in the summer months. The roof was built so it sloped in one direction and can be used to collect rain water once a water [...]





