Choose the ceiling plane or the roofline. They are different enclosure decisions.
Resolve leaks, wet materials and drainage defects before insulation makes the deck harder to inspect.
Locate flues, chimneys, lights, wiring, ducts, fans, plumbing and access before planning air sealing.
Seal ceiling bypasses first. Preserve required clearances and the intended ventilation path.
Connect slopes, gables, eaves, walls and attic access into one continuous enclosure.
A new boundary can change equipment conditions, ventilation, moisture and pressure. Review the system.
Check product instructions, layer limits, required fire protection and local inspection needs.
Save documents, lot, conditions, thickness checks, photos, repairs and inspection results.
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