... Yuuup. I knew a person who tried to put in triple-glaze, in New Westminster, BC, and it took a special lien on the property along with special approval fro

... Yuuup. I knew a person who tried to put in triple-glaze, in New Westminster, BC, and it took a special lien on the property along with special approval from the Province because they weren't allowed by the building codes at the time. That was ~10y ago, so maybe it's changed now.