Homeowner checklist

Attic insulation types: a visual guide to what you may find

Use these questions to compare materials and the proposed assembly.

• Review insulation records without disturbing unknown material.
• Flag suspected vermiculite before anyone alters the attic.
• Ask where the proposed air and insulation boundaries will be.
• Confirm leaks, clearances, ventilation paths and hatch details are addressed.
• Request product, coverage, quantity and thickness records.
• Keep the assessment and completion photographs with your home records.

Notes & questions to follow up