Insulating an attic is an effective way to improve home comfort and lower heating and cooling costs. It acts as a barrier to prevent heat flow from the inside of the house to the outside in winter and vice versa in summer. It also helps to keep moisture and pests out, and reduce noise. While many homeowners are comfortable performing this work themselves, others prefer the services of attic insulation installers to ensure a job done correctly and quickly. An experienced professional will also know which types of insulation are best for different homes and climates.
There are two basic kinds of insulation: fiberglass batts and cellulose. Fiberglass batts are usually made of spun glass fibers or mineral rock, and are available in rolls that fit between attic joists or wall studs. They are the most common type of insulation, and they offer an R-value of 3.5 per inch. Cellulose insulation is made from densely packed independent fragments of boric-acid-treated recycled paper products and has a higher R-value per inch than fiberglass. It is blown into attics or wall cavities through a special machine with a hose.
When choosing an attic insulation contractor, ask for references from previous customers. It is also important to read online reviews. Make sure to find a registered contractor that uses quality insulation materials and offers fair pricing. Additionally, be sure to check that the company carries proof of insurance to cover any potential damages or injuries while working in your home.
If you want to hire a professional insulation contractor, look for one with experience in both attic and crawlspace installation. They can ensure that the attic and crawlspace are properly inspected and cleaned before adding any insulation, which is critical for proper insulation performance. They should also be familiar with the proper installation techniques for various insulation types.
Some companies also offer a free attic inspection to assess your home’s current insulation level and help you choose the right amount of new insulation. The technician will inspect the attic space and crawlspace for air leaks, moisture damage, and pest infestation. They will then recommend the proper insulation for your home and explain the benefits of each option.
Once you’ve chosen an attic insulation contractor, review their contract carefully before signing it. Be sure it includes a list of the services that will be performed and the price for each service. It should also include a guarantee or warranty that the company will perform the work as agreed upon and provide any promised warranties.
If you’re installing cellulose insulation in the attic, be sure to ask whether the company will use wet-spray cellulose or dry-blown fiberglass. Wet-spray cellulose contains water, which helps control dust and increases the R-value of the insulation. It is also safer than dry-blown fiberglass, which can be irritating to the lungs and eyes. In addition, the company should promise to keep insulation a minimum of three inches away from recessed lighting fixtures (like can lights) and plumbing vent pipes in the attic, as these items must be insulated with a special fire-resistant material.