When Attic Restoration Is Relevant in New Westminster
New Westminster's Queens Park neighbourhood has the oldest attic insulation stock in Metro Vancouver. Victorian and Edwardian homes from the 1880s to 1920s have original blown cellulose, horsehair, or early mineral wool insulation from the early 1900s that is a century old. When raccoons or squirrels have accessed these attics over multiple seasons, the contamination is in materials that have been aging for 100 years.
Original Queens Park attic insulation from the pre-1930s era that has absorbed wildlife contamination is not recoverable — it is well below current BC code thermal requirements regardless of contamination, and contaminated century-old organic materials carry a different mould risk profile than 1970s fibreglass.
Queens Park's active raccoon and squirrel pressure from Brunette Creek, Queen's Park urban forest, and the century-old canopy trees means that multi-season attic access without prompt exclusion is a realistic scenario on these properties.
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