Exterior Wall Insulation

Insulation is often one of the most overlooked aspects of a house but is potentially the most crucial. Insulation is what helps keep the heat out in the summer yet keeps it in during the winter months. Many people forget about it or take it for granted, perhaps it is something to do with the phrase ‘out of sight, out of mind.’ However, it is not something to be taken for granted and with winter fast approaching now is the best time to get your MA home insulated properly.

Without proper insulation, you could be losing up to 80% of your heat in the winter and air conditioning in the summer – think of that in terms of money, up to 80% of your heating bill could be wasted! The main purpose of good insulation is to create a barrier between the external world and the interior of your home. Exterior walls make up the largest portion of your home which is connected to the outside world, and therefore one of the most important places to get properly insulated.

Exterior wall insulation fiberglass cellulose weatherization

Exterior wall insulation cross section

Insulating is a quick and straightforward process, however, it is one that should be completed by an experienced insulator, using the correct tools. Exterior walls are usually filled with spray foam insulation due to the ease of which it can be installed. This spray foam will seal any cracks and voids throughout your house, making sure that air isn’t getting out or getting in unnecessarily. This type of insulation will also help to create a more consistent temperature within your home, without the need for air condition or central heating.

Spray foam insulation can also reduce moisture in the home, meaning areas which are prone to condensation could become less of a problem. This is especially useful in old MA homes which can become damp and often have problems with mold and mildew. Many of these places which are prone to condensation such as bathrooms, utility rooms, and laundry rooms have exterior walls and often come with air ducts or vents built in. This is a problem because the walls around vents or air ducts often aren’t insulated properly meaning this is a hotspot for air to get in or to escape.

Getting proper insulation around any problem areas is especially important to consider. Problem areas can include air ducts and vents, windows, and doors. Because these parts of the house are designed to let air in or out, contractors don’t always fully insulate these areas which are fundamental mistakes. Even though these parts of the house are designed to let the outside in, it doesn’t mean the area around them shouldn’t be properly insulated. In fact, because these areas are already fairly exposed to the elements, the insulation around them should be even better. Make sure you look for a qualified insulator who can do an assessment of your house and decide what kind of insulation you will need.