easyaim

I'm an aerospace engineer and woodworker who installed exhaust fans in my shop. The patent-pending Haslet frames are designed to make it easier to install exhaust fans, vents, windows, and doors into metal buildings with ridged panels. The frames are made from hybrid materials including high-density EPS (extruded polystyrene) filler with face sheets of exterior grade lumber to last a lifetime. The contact surface is contoured to match the outline of common building sidings, filling the valleys and gaps created by the ridges of the siding. This close fit creates a better structural assembly, reduces water leaks and drafts, decreases the chance of vermin and insect invasion, and gives a flat surface for easier installation of exhaust fans, windows, or doors.