Risks of adding more insulation

Insulation · Attics · printed page 246 (PDF page 247)

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Adding Insulation – Risks Insulation – Risks of Adding More Risks of Adding More Insulation

Text in the illustration

not enough ventilation
chimney
roof rafter
obstructed soffit vents
new insulation
old insulation
soffit vent
buried recessed light fixture
insulation too close to chimney
wall

Generated explanation

A section through an attic eave shows new insulation added over old insulation above the ceiling, beside an exterior wall and beneath a sloping roof. The added insulation obstructs the soffit vents, and a separate warning identifies insufficient attic ventilation. A metal chimney passes through the ceiling insulation and roof, with insulation shown too close to the chimney. A recessed ceiling light is buried in the insulation. Red crosses identify these improper conditions.