25% Savings on Heating & Cooling


Installed in attics, walls, ceilings and floors, Sanctuary keeps homes cooler in the summer and warmer in the winter, reducing heating and cooling costs by up to 25%.

85% Recycled Material


As cellulose insulation that can be blown-in or spray-applied, Sanctuary can be easily installed over existing insulation, and unlike batt or roll alternatives, it is engineered to fill every gap, void and hard-to-reach place without time-consuming cutting and fitting.

60% Reduction in Sound Power


Sanctuary is engineered to fill tiny crevices and gaps, creating a dense, scientifically advanced barrier capable of reducing the power of sound by up to 60%.

1/A Advanced Fire Resistance


Sanctuary has a Class 1/A fire rating, qualifies as a fire-blocking material and has been proven to be 57% better at resisting fire than most other common type of residential insulation.

Rated Formaldehyde Free


Formaldehyde can cause irritation of the skin, eyes, nose, and throat. High levels of exposure may cause some types of cancers. - EPA.org

Clarke & Rush Installs Greenfiber Sanctuary® Blow-In Insulation

Sanctuary requires 13 times less energy to manufacture than fiberglass insulation⁴, is made with 85% postconsumer paper material and is free from unhealthy substances such as formaldehyde and asbestos.

  • 60% reduction in sound power
  • 25% reduction in heating and cooling costs
  • 85% recycled material
  • Energy Star certified
  • Formaldehyde free
  • Limited lifetime warranty
  • R-Value per Inch: 3.7
  • Insulation Type: Cellulose
  • Fits any wall configuration
  • For use in attics, ceilings, crawlspaces and in floors
Why Do I Need Blown-In Insulation?

Insulation acts as a thermal barrier which suppresses the movement of radiant heat in and out of your home. All that means is that it keeps heat from getting into the home when it’s hot and keeps the heat in when it’s cold. The Summer sun’s intense rays cast down onto your home. This causes the roof and walls to heat up, which in turn causes the attic temperature to rise. Attic temperatures can reach nearly 170 degrees. The trapped heat then warms your house making things quite uncomfortable.

It is fairly common for an air conditioning system to runs all day and not cool the house efficiently. This is usually due to a poorly insulated home. Heat enters the home at the same rate that your air conditioner is able to cool it. Properly insulating your attic space and walls will radically reduce the amount of heat coming into your home. This allows the house to stay cooler for longer, and keeps the air conditioner from working too hard. Insulation will also keep your home more comfortable in the winter. Insulation is great when you are trying to retain some heat. The same way insulation can stop heat from getting into your home, it can also contain the heat during the winter, which keeps your furnace from working too hard, and running your utility costs up.

A properly insulated home allows the air conditioner and heating system to work more efficiently, which saves you money while also keeping the air from drying out too much due to a system that is constantly running. Insulation also acts as a sound barrier to some extent, which is great if you live near an airport, freeway or other noisy areas.

Save Energy & Money

The benefits of insulating your attic range from lower energy bills to warmer winters and cooler summers. Even if your home already has an insulated attic, you can still reap huge benefits from new insulation. We will help you choose the right type of insulation for you and equip you with the proper tools to successfully insulate your home.

Why Clarke & Rush?

When you choose Clarke ↦Rush to help with your attic insulation, you can be confident that your installation will be done right, and at a fraction of the cost. Our experienced insulation installers know the proper R-values to install based on Sacramento, California’s geographic location to ensure you get the best protection possible for years to come.

Does Clarke & Rush Have Financing?

Whether you choose to install blown-in insulation, loose-fill or radiant barrier insulation, Clarke & Rush provides flexible financing options to help you better afford insulation costs. We understand that attic insulation is an investment, which is why we offer easy monthly payments and affordable insulation services to help you save even more.

What Should I Do Before Insulation Is Insatlled?

To make sure you get the most from your new insulation and that it will last many years and keep conditioned air inside your house where it belongs.

1. Fix your leaking roof: Water is terrible for insulation. It creates mold and mildew in the insulation and destroys the air-trapping ability of the material. This will keep the material from blocking heat flow. Water stains, and damp areas or moldy spots are signs of leakage.

2. Route all exhaust fans and vents outside: While it is against standard building codes to vent an exhaust into the attic space, there are plenty of builders that have managed to get away with doing so. The problem with this is that is allows humid exhaust air to get trapped in your insulation, causing mold and mildew, which eventually ruins your attic and insulation.

3. Box in your light fixtures. You do not want any material to touch or cover recessed can lights, as it is a fire hazard. Framing your fixtures with ply wood, sheet metal or hardware cloth with keep the insulation from coming in contact with the light. Be sure to keep a minimum of 3” cleared around each fixture.

Attic Insulation Sacramento