When should I add blown-in insulation to my attic?

Common signs your attic may need more insulation for better comfort and performance.

Yuri

Last Update hace 2 meses

You may need to add blown-in insulation to your attic if your home feels too cold in winter, too hot in summer, or if your heating and cooling costs are higher than expected.

Attic insulation can settle, shift, become uneven, or may no longer provide enough coverage. Older homes often have low insulation levels or areas where insulation is missing.

Common signs your attic may need more insulation

You may benefit from an attic insulation upgrade if you notice:

• Rooms feel cold in winter
• Rooms feel too hot in summer
• Uneven temperatures between rooms
• High heating or cooling costs
• Existing attic insulation looks thin or uneven
• Drafts near ceilings or upper floors
• Snow melts unevenly on the roof
• Your attic insulation has not been upgraded for many years

Can blown-in insulation be added over existing insulation?

In many cases, blown-in insulation can be added over existing attic insulation. However, the existing insulation should be dry, clean, and in suitable condition.

If the old insulation is wet, damaged, contaminated, mouldy, or heavily disturbed, removal may be recommended before adding new insulation.

What should be checked before adding insulation?

Before installing blown-in insulation, the attic should be inspected for:

• Air leaks
• Moisture or roof leaks
• Ventilation problems
• Existing insulation depth
• Attic access
• Electrical or mechanical obstacles
• Signs of pests or contamination

Why inspection matters

Adding insulation without checking the attic first may hide existing problems. A proper review helps make sure the attic is ready and the insulation upgrade is done correctly.

Need an attic insulation estimate?

Send us your name, phone number, project address, attic size if available, and a few photos of the attic. Spray Foam GL can review the details and recommend the best next step.

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