For China, India, and many other rapidly-developing countries, water scarcity will increasingly and negatively affect growth-with 2.7 billion people living in water scarce basins in these countries alone by 2050, up from 1.4 billion today.
Replace window putty if it has become old and cracked. Window putty commonly is referred to as glazing compound. It is made to remain semi-flexible throughout its lifetime, so it both firmly holds the glass in place and keeps the edges of the glass leakproof. Properly installed putty looks like an extension of the window frame, and can be painted to match.
Use wood that is at least one inch thick and has been treated with water proofing. Since pole barns have thin walls, the frame will project on both sides. A flange will hold the frame in place. Hold the frame against the part of the wall where you want to put the window, and trace lines around it.Drill holes in the corners, and then use a jigsaw to cut along the lines to make the opening for the window. Smooth the edges with coarse sandpaper. flange will hold the frame in place. Hold the frame against the part of the wall where you want to put the window, and trace lines around it. Drill holes in the corners, and then use a jigsaw to cut along the lines to make the opening for the window. Smooth the edges with coarse sandpaper.