Attic & Insulation Inspection — What We Look For
What is above the ceiling affects everything below it.
What we check — 12 inspection points
Every item below is checked on every inspection that includes attic & insulation.
Insulation type
Fiberglass, cellulose, spray foam, vermiculite
Insulation depth
R-value assessment against Ontario code
Insulation coverage
Gaps, compression, missing areas
Vapour barrier
Presence, condition, continuity
Ventilation adequacy
Soffit intake, ridge/roof exhaust balance
Roof decking
Staining, rot, mold, frost, daylight
Structural members
Rafters, trusses, collar ties, modifications
Exhaust terminations
Bathroom and kitchen vents — attic vs exterior
Animal intrusion
Entry points, nesting, feces, damage
Electrical in attic
Junction boxes, wire routing, knob-and-tube
Thermal scan
Infrared mapping of insulation gaps and moisture
Hatch condition
Seal, insulation, accessibility
What we find — top 5 issues
The most common attic & insulation findings in Ontario home inspections.
Attic mold
$5,000–$20,000Mold on roof decking from ventilation failure
Inadequate insulation
$2,000–$5,000Below code R-value causing energy loss
Bathroom venting to attic
$300–$800Exhaust dumping moisture into attic space
Animal intrusion damage
$1,000–$5,000Insulation and wiring damage from wildlife
Vermiculite insulation
$5,000–$15,000Potential asbestos-containing material requiring testing
How attic & insulation gets inspected — and verified
On site — Physical Inspection
Your RHI certified inspector physically examines every accessible attic & insulation component with professional equipment, including moisture detection — plus thermal imaging when the optional upgrade is added.
In the report — Review & Verification
Every photo and reading from the attic & insulation inspection is cross-referenced through our reporting system, and every finding is severity-rated before appearing in your report.
Related inspection services
Every attic & insulation checkpoint. Every inspection.
From $349. Same-day report. 12 attic & insulation checkpoints included.
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