Use two cores of a shutter

4. Choose between a mobile and motionless jalousie. If you want to use sun blind first of all for private life and safety, you can want to use the established jalousie of situation. If you want be able to open sun blind to allow light, ventilation or to see through a window, you will want to choose adapted sun blind of a jalousie. 5. Read the reviews written by construction advisers and also consumers. These reviews are published on websites and published on construction websites and in magazines of furnish of the house. 6. Choose dear company with a reliable guarantee on defects in materials and skill. 1. Measure a window and make sure that window opening the square. If the window is not square, you will be obliged to be narrowed a shutter to correspond to opening. 2. Reduce sun blind to correspond to opening. If you cannot find a shutter which will correspond to your window precisely, to choose a shutter which is a little more than opening. If you have to overturn more than from a shutter, to reduce all this at the left or the bottom parties. If you have to cut down more than inch from the party, to reduce a half from each party. Use the same procedure in reduction of height of a shutter. 3. Suspend a shutter with not cutting of a nest of cores. Use two cores of a shutter for a sun blind of 30 inches or less in height. Use three cores for a sun blind from 30 48 inches in height. Be convinced and place cores to the opposite side of desirable opening of a shutter.