Only positives come from restoring a coating on a metal roof and then maintaining that coating by re-coating the roof as necessary. An elastomeric acrylic coating acts like a shield, protecting the metal roofing system from the elements, including ultraviolet (UV) radiation, and ice and hail storms.
one hand clapping. The sound of one hand clapping is the sound of one hand closing quickly. The sound of one hand clapping is supposed to be a question with no answer. It is a clasic Zen koan given to students to aid in enlightenment by leading the mind into a cul-de-sac with no way out but enlightenment.
Hawaiian hand gesture. It has many meanings. Originally it means to hang loose, or to chill and be laid back. It can be used as a positive reinforcement. If somebody did something good, cool, or righteous; You can give them a shaka as a sign of approval or praise. It can also be used as a welcome/goodbye sign. Most people would give the shaka as a sign of wassup or hello, use it as a way of saying goodbye, and even use it as a thank you. To make a shaka: 1. make a fist (not a tight fist) 2. extend both your pinky and your thumb.