Cellulose Insulation Settling In Attic

Our licensed certified professionals can provide an energy efficient installation with minimal settling and we serve the entire dc metro area.

Cellulose insulation settling in attic.

Blown in insulation made from rock wool or fiberglass typically loses between 2 and 4 percent of its insulating capacity due to settling. Cellulose insulation is the most prone to settling and will undergo a 20 percent loss of r value due to settling. Sure there s insulation in your attic and crawlspace. It is applied with a very small amount of water to activate an adhesive of some kind.

Bag of all borate insulation is ideal for professional contractors that offer blow in attic sidewall and floor applications. Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs. Or attic staircase hatches. Or whole house fans.

Stabilized cellulose is used most often in attic roof insulation. In this unfortunate journey i have learned a lot about cellulose insulation and insulation installers. Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics. Cellulose insulation services in dc maryland.

Shorting simply means that all of the material needed to achieve a given r value is not installed. Bag of all borate contractor grade 30 lb. Before even calling any insulation companies have your attic checked by an hvac professional for loose torn damaged or old air ducts. Through research and testing the amount of settle has been analyzed and recommendations verified for how deep cellulose insulation must be to compensate for settling.

But there s probably nothing to prevent air from moving past plumbing air duct and electrical penetrations. Greenfiber cellulose insulation fills gaps and voids to create an energy saving thermal blanket that can lower heating and cooling costs by 25 and reduce sound power by 60. Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts. Here are some tips and precautions that should be taken.

Contractor grade 30 lb. In spite of all their benefits neither fiberglass nor cellulose insulation provides an adequate air seal. When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding. For instance if the average settled depth of cellulose is 5 1 2 inches for an r 30 attic when in reality it should be 8 inches.

This can prove advantageous at reducing the overall weight of the product on the ceiling drywall helping prevent possible sag. This reduces settling and decreases the amount of cellulose needed. Loose fill cellulose is relatively inexpensive yet still has an r value of about 3 5 per inch of thickness compared to fiberglass r value between r3 to r4 per inch. R value measures the relative effectiveness of insulation per inch.

Cellulose blown in ceiling insulation is a good choice for diyers. This is true for all loose fill insulation products. The phenomenon is easily accounted for and simple to overcome with cellulose insulation. Contact us or call 301 358 6411 today for a free estimate.