b'Depending on the condition of the opening and thetype of exterior trim or siding, it may be necessary to cap the opening to make a smooth transition ofouter and inner surfaces in preparation for the newwindow.At least cover or caulk all cracks and holes.Wood furring can be used to fill gaps in between siding and interior walls and to provide structuralsupport in the opening.Most openings will now be ready for the installationof exterior "blindstops".Aluminum or vinyl angles(1 x 3) or wood (1 x 1 or 1 x 2) can be used forstops and should be installed to the outside allowingfor depth of replacement window (3 1/4).Installthese stops on head and both jambs only.Slopedsills require the use of the provided sill angle.Flat sills should be caulked where the window meets the sill so as not to block drainage.Install new window against outside stop, caulk andtrim interior and cap exterior as necessary.It maybe wise to cap the furring or outside stop beforeinstallation to minimize after-installation trim work.Pre-extruded shapes or available Snap-Trim canmake the job easier.Mount the angle of the snaptrim with pop rivet to the top of window.Afterplaced in opening, mount angle to other sides.Plumb and square window using snap-trim angleand pop rivet to window and screw trim angles tointerior window opening, cap exterior and caulk.Once all trim angles are secure Snap Over trim and caulk.The use of Snap Trim eliminates the need of stops and shims.NOTE: When removing finned windows it is possibleto tear the underlying building paper and weatherbarrier. If so, consider a Jump Frame installationdescribed elsewhere in this manual.ThreeInstallationMethodsWindow Fitters Guide to Window Installation702020 AWDI, LLC Do not reproduce without permission'