 This was followed by "Leaves of Light", Life Sciences Building at York University and "Waterglass" solar art facades at Harbourfront Centre.Hall’s most extensive solar project has been the monumental south windows entitled "Lux Gloria" at The Cathedral of the Holy Family in Saskatoon, Saskatchewan, one of the sunniest city in Canada with over 2268 hours of sunlight per year.Although the focus was on solar integration in this period many projects were created in other techniques including glass mosaic, appliqué, screen-printing and fused glass.