If the power is going to be out for a long time, buy dry or block ice to keep the refrigerator as cold as possible. Fifty pounds of dry ice should keep a fully-stocked 18-cubic-feet freezer cold for two days.
Instructions. Measure the width of the window and decide how wide the window treatments will be. Window valances should extend 2 inches beyond the window frame to allow for the support brackets. Being made of wood, box valances weigh more than fabric valances, so consider how they will be attached to the wall.
Decide on the length of the valance. Typically, the folds in a Mock Roman valance are 4 to 6 inches long. For example, for a 3-fold valance a length of 12, 15 or 18 inches is preferable.lace the straight edge at this measurement. Fold the valance fabric up and over the straight edge. The right side of the fabric is now on the surface, and you now have a 2-fold valance. Align the top edges and re-position the pins to include all 4 layers. Sew across the top of the valance 3/4 inch from the raw edges.