Overcoming Weatherization Barriers: Cost, Caution, and Why It's Worth It

Written by
Ravenne Nasser
October 30, 2023


Weatherization is a fantastic way to make your home more energy-efficient, comfortable, and eco-friendly. It can help you save on energy bills, reduce your carbon footprint, and enhance your overall quality of life. However, before jumping into weatherization projects, homeowners must be aware of potential barriers that could affect the process. In this blog post, we will explore some common weatherization barriers, the associated costs, and why overcoming these challenges is well worth it.

1. Mechanical System Barrier

When it comes to weatherization, your home's mechanical systems play a crucial role. It's essential that your heating system, water heater, and other combustion-based appliances pass safety tests for carbon monoxide and exhaust efficiency. If they fail, they need servicing or replacement to ensure safety before proceeding with insulation. While this may incur some upfront costs, it's vital for your well-being and energy efficiency.

2. Knob and Tube Electrical Wiring

Knob and tube wiring, common in homes built before 1950, can be a significant weatherization barrier. These exposed wires pose a fire hazard if insulation is installed around them without proper assessment. An electrician's inspection is necessary to confirm that the knob and tube wiring is inactive before proceeding with insulation. While this inspection may cost around $250, it's a crucial step to ensure safety.

3. Asbestos/Vermiculite

Asbestos, once commonly used in construction for its fire-resistant properties, is now known to be highly dangerous when airborne. Asbestos-related diseases can be fatal, and its presence in homes is a significant barrier to weatherization. If asbestos is found in your home, it must be remediated by professionals before insulation work can continue. The cost of asbestos remediation can vary but is a necessary investment in your health and safety.

4. Mold

Inadequate ventilation can lead to mold growth in your home, especially in areas like attics and basements. Mold poses health risks and must be abated before weatherization can proceed. The cost of mold remediation can vary based on the extent of the problem, but it is essential for your family's well-being.

5. Home Design - Inaccessible Areas

Sometimes, weatherization projects involve insulating areas that are difficult to access, such as crawlspaces or attics. These inaccessible spaces may require additional work to make them suitable for insulation. While this can be an added expense, it's necessary to achieve proper weatherization.

6. Horsehair Plaster

Horsehair plaster in older homes, typically built before the 20th century, adds historical charm but poses weatherization challenges. Over time, it may settle or deteriorate, leaving voids and gaps. Insulating over deteriorated horsehair plaster without addressing these issues can lead to structural problems and poor insulation. Preserving your home's historical integrity requires extra steps and expenses, but proper assessment, reinforcement, and insulation techniques can maintain its character while improving energy efficiency and comfort.

Why It's Worth Overcoming These Barriers

Despite the potential barriers and costs associated with weatherization, the benefits far outweigh the challenges:

  1. Energy Savings: Weatherizing your home can reduce energy bills by up to 30%. Over time, these savings can offset the initial costs.
  2. Comfort: A well-weatherized home maintains consistent temperatures and eliminates drafts, enhancing your comfort.
  3. Environmental Benefits: Reduced energy consumption lowers carbon emissions, contributing to a more sustainable future.
  4. Health and Safety: Addressing issues like mold and asbestos improves indoor air quality and ensures your family's well-being.
  5. Increased Home Value: Weatherized homes are more attractive to buyers, potentially increasing resale value.
  6. Incentives: Mass Save® offers incentives, rebates, and tax credits for weatherization projects, making it more affordable.


While weatherization barriers may seem daunting, they are surmountable with the right precautions and professionals. The long-term benefits of lower energy bills, increased comfort, and improved environmental impact make weatherization an investment well worth pursuing. Don't let these barriers deter you; take the necessary steps to weatherize your home and enjoy the numerous rewards it offers.

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