There are countless benefits to having a roofing company adequately insulate your roof, such as lowering your heating bills and maintaining a more comfortable temperature in your home. But in order for the insulation to be effective, it’s important to know how to properly insulate a roof before you begin the work. These tips can help you get started.
Decide What Insulation Style Is Best for You
When insulating a roof, you have two basic options to choose from. Cold loft insulation is a process in which you insulate immediately above the top ceiling of your home. This prevents heat from your home from escaping up into the loft area below your roof.
On the other hand, reputable roofing companies (such as Taylor-Made Roofing) know that warm loft insulation refers to a process where you insulate under the roof itself. Heat from your house can rise into the loft below your roof, but can’t escape through the roof. This keeps the loft area usable, and is an ideal method if the loft area is a livable space.
Regardless of which method you choose, understanding how to properly insulate a roof is important to your project’s success.
Create Air Vents
If you’re insulating directly below the roof’s surface, then you need to create air vents between the roof’s underside and the insulation. Air vents should consist of at space of at least 2″. This vent space serves to dissipate any moisture that collects on the underside of the roof. You can staple prefabricated vents right into your roof’s underside.
Add a Vapor Barrier
Wet insulation does not perform as well as dry insulation does, so adding a vapor barrier is a wise idea because it helps to keep the insulation itself from getting wet. The vapor barrier should always be installed on only the side of the insulation which faces the heated area of your home.
When you install a vapor barrier, use a heavy-duty plastic sheeting. Install the barrier carefully and tightly, so that it creates a smooth finish. Make sure that you overlap any seams in the vapor barrier by at least 12″.
Choose and Install Your Insulation
A major aspect of properly insulating a roof depends on the depth of the insulation that you use, so before you go out to buy or install the insulation, consider the depth that you will need. As a rule of thumb, roof insulation should be at least 1′ thick. However, thicker insulation is more effective, so using 15″ to 20″ of insulation is a common practice.
Once you have decided on how much and what type of insulation you will be using, it’s time to actually apply the insulation to your roof. Be sure that the insulation is even and secure. If you’re using rolls of insulation, then keep the rolls intact until it’s actually time to roll them into place – this allows for a smoother and easier installation.
If you come across electrical wires, it is best to leave them exposed so that they can stay cooler and be easily accessed.
Once your insulation is installed, it is time to insulate any pipes that are exposed. Wrap the pipes in pipe insulation. If you’re not using self-securing pipe insulation, then use electrical tape to secure the insulation to the pipes.
Understanding how to properly insulate your roof can help ensure that your project is a success and that your home is well protected.