Definition
A measure of how well insulation resists heat flow — the higher the R-value, the better the insulation. Northern New York attics are typically targeted around R-49 to R-60.
Why this term matters for homeowners
Home-performance terms map to attic ventilation, insulation, energy bills, and how the systems above your ceiling protect the roof's lifespan.
- Use this term to ask better follow-up questions during estimates.
- Look for this language in Learn and Evaluate guides to connect definition to decisions.
- Confirm how this applies to your specific roof age, pitch, and home layout.
Related pages
Category: Home Performance