Rules for charging Windows, and Exemption.
Reading edition
Every Window that exceeds 11 feet, by 4 feet 6 inches, to be charged at two windows, except those so made before April 5, 1785, and those in shops, warehouses, &c.
All sky-lights, windows in staircases, garrets, cellars, passages, and all other parts of dwelling-houses, whether adjoining or not, are to be charged. Windows giving light to more than one room, to be charged as separate windows, Windows in dwelling-houses, used solely for the purpose of a manufactory, warehouses or workshops, and not having any communication with the dwelling-house, are exempt; and also windows (not exceeding three) in front shops and warehouses on the ground story, though communicating with the dwelling-houses.