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Originally Posted by avare  There is a company formerly known as Ottawa Fibre Inc. that is now a part of CertainTeed, which is the north american presence of the insulation giant Saint-Gobain. Their 703 equivalent is OFI 48. Try HVAC and insulation supply houses, not home building stores. |
That's great advice from a fellow Canadian. Any reason you can't look for some OFI-48? That might be a better solution.
Frank