Blown In Cellulose Insulation

Blown cellulose can be installed in new or existing structures. It is popular in retrofit applications because existing wall finishes are not removed to install the insulation. It is favored in attic applications because you can blow unrestricted depths of fiber to achieve deep coverage with very little labor.

Blown cellulose is shredded newsprint that is installed with special equipment. Blowing fiber into enclosed wall and cathedral framing cavities is different. Here a smaller 1- or 2-inch diameter fill tube is attached to the end of the larger hose. The fill tube is inserted into enclosed cavities through a series of strategically placed holes. The general idea is to drill a series of 2-inch holes horizontally across the structural surface so that the holes are centered in each framing cavity. One or more holes per framing bay are required depending on the length of the framing cavity and the applicator’s fill technique.

Filling walls and cathedral roofs from the outside is the typical practice. Pieces of siding or roofing are removed, holes drilled and insulation fill tubes inserted. Air pressure is cranked up for cavity-fill applications to provide a more densely packed injection called dense-pack cellulose. The narrow fill tube is inserted into the holes and pushed to within a foot of the far end of the enclosed cavity as the blowing begins. When the packed insulation becomes dense enough, the hose is manouvered to fill the cavities evenly. The process is repeated until the framing cavity is filled. The holes are plugged and the siding and roof covering is patched or reinstalled when the blowing is completed.

Cellulose can be blown into wall or cathedral roof cavities from the inside as well. Remove interior trim, drill – or simply drill holes through the interior drywall surface – and blow. Replace trim and patch the holes after the cavities are filled. In new construction, walls must be enclosed with fiber-reinforced plastic sheeting or drywall before cellulose can be blown into the framing. The plastic sheeting doubles as a vapor barrier.

What Our Clients Are Saying

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!

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.

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.

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

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!

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!

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.

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.