DIY Insulation: Best Method?

We've got big plans for this fourth of July weekend: installing some form of additional insulation in our attic. We live in Texas and our AC that was built for less square feet than we have struggles to keep our house cool and is running non-stop.

In an effort to reduce our energy usage, the strain on our air conditioner and increase the level of comfort in our home, my husband and I have researched several different options:

1. Radiant barrier (Enerflex sheets or Reflectix rolls). Specifically, we've been looking at this Home Depot radiant barrier product.

2. Fiberglass insulation (blown-in)

3. Fiberglass insulation (rolls)

4. Additional ventilation (attic vents, soffits, whirlybirds)

Or a combination of the above. Now here's where I turn to our wonderful Apartment Therapy community for advice: Have you installed any of the above insulation solutions? What do you think will be the most efficient option?

Check back next week to see the results of this weekends home improvement endeavors!

Image: Johnny Williams

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