Some types of foam insulation pose a threat to the environment. Polyurethane expanding foam insulation employs blowing agents that emit greenhouse gases, which can destroy the Earth’s atmosphere, according to Thomas Net. Polyurethane foam insulation contains fossil fuels that cannot be renewed. Many expanding polyurethane foam insulation manufacturing companies are developing technologies that limit the detrimental effect their products have on the environment.
One of the biggest problems linked with expanding polyurethane foam is that it emits toxic fumes during and even after application. Inhaling fumes from this type of insulation can lead to health issues, according to ESP Energy. Temporary blindness is a possible side effect of exposing the eyes to polyurethane foam insulation. Coming in direct physical contact with polyurethane foam can elicit an allergic reaction. Common allergic reactions to polyurethane foam insulation include difficulty breathing and rashes forming.
Proper safety equipment needs to be employed while handling foam insulation. To prevent lung damage, a respirator should be used while handling polyurethane foam insulation. Goggles or face shields are quite effective at keeping polyurethane foam from coming in contact with the eyes. Individuals who need to handle polyurethane foam should always wear protective gloves while doing so to avoid skin exposure, according to the Center for Polyurethanes.
Only professionals should attempt large-scale insulation projects involving polyurethane foam, because application can be a tricky, dangerous and costly project. One of the least attractive features offered by this type of insulation is the fact that it degrades slightly as it ages. Its ability to insulate experiences a slight and sometimes noticeable decrease later in its rated life. Polyurethane foam insulation remains among the most highly flammable types of insulation available to consumers, according to Ask The Builder.
One factor that has curbed even more widespread use of foam insulation is the cost. Polyurethane foam insulation is among the priciest types of insulation on the market. It can be much more expensive per linear foot than rolled fiberglass insulation. Consumers can expect to pay up to around $3 per linear foot of professionally installed foam insulation depending on the thickness of the application.