How Do You Know the Insulation Is Even?

Loose-fill insulation can create a smooth-looking surface.

But one area might be:

• 14 inches deep

while another is only:

• 8 inches.

That is where depth markers help.

DOE attic-insulation guidance recommends checking blown-insulation depth during installation to verify even coverage and the intended installed thickness.

What Are Depth Markers?

They are simple rulers or gauges positioned around the attic.

As material is blown, the installer can see whether each area has reached the planned depth.

Why Not Just Measure at the Hatch?

Because the hatch represents only one location.

Thin areas may exist:

• Near eaves
• Behind framing
• Around obstacles
• Far from the access point

Depth Is Not the Only Factor

Proper thermal performance also depends on:

• Material density
• Product coverage requirements
• Settled values where applicable

Why Homeowners Benefit

Markers make the installation easier to inspect later.

A Consistent Attic Needs More Than One Good-Looking Pile Near the Hatch.

Envirotech Exteriors uses measured coverage—not guesswork—when planning blown-in attic insulation.