b'If unable to cut the frame, you can collapse thewindow frame,carefully as shown.The old windowshould be out withminimum damage Step 3.to the opening. Pry out oldframeHow to Prepare and shims.the New Opening MinimizedamageClean any debris to stuccofrom the opening,including oldshims, woodmounting materi-als and mountingscrews.Measure the Height to determine if the old sill is at itsproper height, or if the old window floated above.The sill needs to be established at the proper dimen-sion, and it needs to be flat and level the full width ofthe underlying framing. Thinset, or similar, can be mixed and poured into thespace to create the proper sill width, level and createthe proper height dimension. If possible, a properly sizedwood framingmember or vinyllumber pre-formedpvc board can beinserted to create Step 4.the flat, level sillMount Newin its properBuck 1/2 position. This will to 3/4eliminate practice thick toof removing flange allow to get new window new SingleHung unitinto opening. into openingUsing new buck withoutmaterial, place removingnew mounting flangebucks on the How to Install the New Windowjambs and header. A new window must be installed on a mounting buckButt them together with stainless steel fasteners at the appropriate codeat the corners, and required quantity, with the fasteners of sufficientcaulk seal all length to penetrate the rough opening frame (block orjoints. wood frame).Cut and prepare a proper sill pan (if appropriate), or Plumb, square and level the window in the opening,install a pre-formed sill piece to effect proper drainage being careful to keep it as centered as possible.and proper mounting of the new windowsill and a Stackable, plastic shims, should be placed underback dam to direct all water to the outside. each mounting hole.Window Fitters Guide to Window Installation136 2020 AWDI, LLC Do not reproduce without permission'