How many bags of attic insulation do I need?

It depends on area and target R-value. A bag of blown-in covers roughly 35 sq ft at R-60. Always check the specific product's coverage chart.

What R-value should my attic be?

R-50 to R-60 is the recommended best-practice target in much of BC. Many older homes are well below this and benefit from a top-up.

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Bags of blown-in insulation for a target R-value.

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How many bags of attic insulation do I need?: It depends on area and target R-value. A bag of blown-in covers roughly 35 sq ft at R-60. Always check the specific product's coverage chart.
What R-value should my attic be?: R-50 to R-60 is the recommended best-practice target in much of BC. Many older homes are well below this and benefit from a top-up.