Leak and Gap Sealing
As with windows, doors are one of the primary sources of heat loss
from your home. The area around a door is particularly
susceptible to cracking due to continuous use and this
can have a high impact on your energy losses through that
area. Using a caulking gun or sealant to fill any identified
gaps can contribute to reduced energy loss. Also note that door
knobs can be a source of energy loss and should be adequately
checked and sealed.
Retrofit Storm Door
Adding a storm door can be effective if your existing door is old but still in good condition. The maximum benefit is achieved for older doors that need increased efficiency to prevent excessive energy loss. Additionally, is you live in an environment that has frequent storms or where your door is exposed to extreme weather elements, it is recommended to install a storm door to protect the more vulnerable inner door. However, for a newer, insulated door is not generally worth the expense, you won't save much more energy. A glass storm door could help trap heat against an entry door. Yet, it might cause damage if the exterior door gets more than a few hours of direct sun each day. In this situation, having a low-e glass will reduce the heat gained and therefore, it is important to consider what your specific requirements. Some smart doors also have additional features such as protective safety locks that can provide enhanced security to your home.
In retrofit programs to date, exterior wall insulation improvements were uncommon, even though walls often account for 25 to 35 percent of the heat loss of a typical existing home.
An image of a reinforced glass storm door that is located exterior to the existing wooden door. This is protecting the inner door from exterior weather elements and the glass can be selected for its energy effectiveness or sun absorption, based on your requirements.
Image obtained from: Lowe's, click on image for reference
1. Manitoba Hydro (n.d.), Sealing, Caulking & Weatherstripping. Retrieved from https://www.hydro.mb.ca/your_home/resources/1_sealing_caulking_and_weatherstripping.pdf.
2. Doors. (n.d.). Retrieved from https://www.energy.gov/energysaver/design/windows-doors-and-skylights/doors
3. Government of Canada. (2018, November 01). Retrieved from https://www.nrcan.gc.ca/energy/efficiency/data-research-and-insights-energy-efficiency/housing-innovation/peer-prefabricated-exterior-energy-retrofit/19406