Attic Ceiling Spray Foam Insulation

When spray foam is installed on the underside of the roof deck the attic space is insulated from heat that otherwise would be entering the attic.

Attic ceiling spray foam insulation.

Moisture is also another huge issue when it comes to spray foam insulation in an attic. The insulation reduces wildly high temperature spikes and so the attic becomes a conditioned part of the home like any other room. In a vented attic all of that expensive airflow is lost to the environment. If you look closely you ll see two exhaust flues on the left side.

One huge benefit of the spray foam insulated attic is that conditioned air leakage from the ac furnace duct system is contained and used to condition the attic. Using icynene spray foam as your attic insulation will turn your attic into a conditioned space. This will allow for optimal operation of your hvac equipment as well as aid in early detection of situations such as roof leaks and wind driven moisture intrusion. If you leave the insulation in the attic floor after insulating the roofline the attic will be cooler in winter than if you remove the insulation.

You can use rigid foam panels or do as tom silva does with nearly all houses these days. Class i e 84 fire retardant meets building code spec. You should never do this. Hire a pro to install spray foam insulation.

The best attic insulation. If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor. You ll also see another safety hazard and code violation. It has been said that insulating with spray foam insulation at the roof line will lead to moisture problems with the roof sheathing.

When we seal the attic with spray foam it s as tight as a butter tub. Using spray foam insulation in an unvented attic application both low density open cell and medium density closed cell spray foam can be used in an unvented attic to provide the needed thermal resistance and airtightness. Thus the air in the attic is connected with the air in the house. The attic you see in the photo here is a different home but it does have one feature in common besides the spray foam.

Installing insulation attics one of the high tech insulation products being utilized these days is a foam spray product called icynene which is a foam that starts as two liquid components a and b if you will that are heated up and sent through two hoses and meet at a tip of a gun where the magic begins. Spray foam insulation that s convenient and easy to use. The installer sprayed foam directly on the metal flues. But a common reason to put spray foam on the roofline is to avoid having to air seal the attic floor.