Attic Blankets

SPS Insulation offers Stabilized Cellulose Insulation R-19 through R-49.

Attic blankets are cost effective since they are easy to install. We install blankets of insulation between the joists or trusses. For uninsulated attics air sealing is performed before adding insulation. In under insulated attics we move existing insulation near common air leakage sites to perform air sealing before adding additional insulation.


1. Do I need a vapor barrier to add insulation?
A common misconception is that all insulations require vapor barriers. However, we don’t recommend the use of vapor barriers with cellulose insulation, except in circumstances of exceptionally high moisture levels, such as an indoor pool facility. The reason is that cellulose is the only insulation that actually manages moisture.

A vapor barrier is not only unnecessary with cellulose or sprayed high performance insulation, but also can be counter- productive, especially during the summer months in air-conditioned buildings, when warm, moist air passes through wall assemblies and condenses on the outside of the vapor barrier. The hygroscopic nature of cellulose insulation allows it to manage and wick moisture from areas of greater to lesser concentrations, thus preventing any significant amount of moisture accumulation.

2. Please explain Why Cellulose does not need a vapor barrier?
Winter time: Moist interior air escaping from your warm home is the largest reason fiberglass needs a vapor barrier: fiberglass cannot block the air flow, it is not an air barrier! Moisture vapor moves two ways, in moving air, and diffusion through solid surfaces. Air movement accounts for over 98% of the moisture, and it is the primary cause for moisture related building failures. By blocking the movement of moisture-laden air, cellulose reduces moisture movement by nearly 95% making vapor barriers unnecessary when you choose cellulose for your home!

Note: Some building codes call for an air barrier or vapor barrier. Work with your local officials regarding compliance. A Provider Member of CIMA can supply you with data regarding vapor barriers and cellulose.

What Our Clients Are Saying

They did a very good job, and were very thorough. Price was reasonable. They were on time and clean.

Joy & I were recently talking, and we decided that doing the insulation was probably the best money we have spent on this house so far.
Our house is more comfortable and we’re spending less on utilities.
Great job all around!

They were very good. I liked their service. They worked very efficiently. They did quality work. It did make a difference in my house. I did feel warm immediately. So I am planning to use them in the future.

Blown in cellulose insulation. Job was completed to an excellent standard at a very reasonable price. After the job was completed, and without being prompted, Brian followed up with a reminder and necessary paperwork to apply for the Energy Tax credit.

Company responded quickly to our inquiry. The materials used were more pricey than a normal insulation job, however, the quality was significantly better than our previous products. The company worked to ensure that we were satisfied and did some additional work that wasn’t included in the estimate. I would highly recommend this company and we will be using them again.

I had a handful of insulation contractors come out to my house to quote me on insulating my attic and some knee walls as well as look at sealing up my crawlspace. Brian was the only one who when talking to i got the sense of him actually knowing what he was talking about. SPS ended up insulating my attic with blow in cellulose, sealed my attic door and added some in the stairway to the attic. They also opened up a kneewall in my upstairs room and insulated that as well. My top floor is now MUCH more comfortable in both summer and winter then it was before.

On top of that they also fixed a dangerous vent fan for me (was a fire waiting to happen, replaced that one properly and did two others for me), sealed my crawlspace where i had open access to the outside (havent seen a mouse since, plus no longer need a dehumidifier!) and insulated and sealed open areas of my garage/house border.

They went above and beyond and did fantastic work and have recommended them to anyone who has asked!

SPS was great ! They arrived on time, were delightful guys and did a great job. They were also immaculate in their work, fully sealing off the attic area to prevent dust, tarping over my stairs and hardwood floors, and vaccumming when they were done. I would highly reccommend SPS and would hire them again if we needed additional insulation work. of heat.

Easy to schedule. Straight forward and honest with the quote. Completely accommodating. A delight to work with in every way! Top notch work as well!

Brian and his team are absolute experts in their trade. My home had unique issues in that the wall depth was not uniform making the option of using rolled batt fiberglass impossible, I was also very worried about future mold issues in our cathedral ceiling. Before we hired SPS I did pretty extensive research on this issue and was worried about finding a contractor with enough knowledge to put my mind at ease. Brian came in and basically he could have written the articles I read. He was so well versed in all methods and knew exactly what was needed (a combo of cellulose and spray foam). My job was done very thoroughly, quickly and came in cheaper than I thought it would. I cant recommend SPS enough. Thanks again Brian and team.