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thegreencocoon

Correcting Closed-Cell Spray Foam Failure in a Residential Roof

Projects

We were contacted by a homeowner whose recently renovated home was experiencing roof performance issues less than two years after project completion. The roof displayed cupping and unusual snow-melt patterns. Upon inspection, we discovered that the original closed-cell spray foam—installed by another contractor—was shrinking and separating. Core samples confirmed our assessment. Importantly, our team did not install the original foam; we were brought in specifically to correct the issue.

The homeowner had removed the shingles and sheathing, allowing us to fully remove the failing foam. This was a meticulous process, as many roof slopes corresponded with cathedral ceilings, which required careful handling to avoid interior damage. Additional complexity arose in attic spaces and inaccessible kneewall areas, making cleanup and preparation challenging.

The Green Cocoon   The Green Cocoon

To properly reapply spray foam, we installed friction-fit foam board as a backing substrate in difficult areas, providing a secure surface for the new closed-cell foam. Interior attic areas were then sprayed and coated with intumescent paint to meet fire-protection requirements. Throughout the project, our team maintained strict fall protection, coordinated closely with the roofing contractor, and worked around weather constraints to ensure safety and efficiency.

The Green Cocoon

The project was successfully completed, restoring the roof’s integrity, energy efficiency, and long-term performance. The homeowner was extremely satisfied with the results and subsequently scheduled work on their second property. This project demonstrates our team’s expertise in problem-solving, precision application, and delivering high-quality spray foam solutions even under challenging conditions.

   The Green Cocoon
thegreencocoon

40 Feet Up: Emergency Roof Repair Under Extreme Conditions

Projects

This project involved the emergency remediation of a newly constructed barn that experienced a catastrophic roof failure of unprecedented scale. The original roof assembly utilized SIP panels; however, in less than three years, severe moisture intrusion led to extensive rot. The roof sheathing had deteriorated so completely that it would turn to powder when compressed by hand, putting the entire structure at risk.

The contractor engaged our team to stabilize and repair the roof assembly by applying closed-cell spray polyurethane foam from the exterior—a solution that is typically straightforward but, in this case, presented significant technical and logistical challenges. The project took place during the onset of winter, with ambient temperatures frequently dropping near 30°F. These conditions raised serious concerns regarding proper foam adhesion and cure. Compounding the issue were repeated rain and snow events and sustained high winds, all of which forced constant rescheduling and required precise timing to execute each phase safely and effectively.

The Green Cocoon   The Green Cocoon

Due to the urgency of the failure and an already full production schedule, our team accommodated the project as an emergency repair. The work had to be completed in carefully sequenced sections so that each area could be sprayed and immediately re-roofed, minimizing exposure to the elements. Adding to the complexity, the roof elevation reached approximately 40 feet, necessitating strict fall-protection measures and detailed safety planning throughout the project.

The Green Cocoon

Through careful coordination, weather monitoring, and disciplined execution, our crews completed the work on schedule despite the adverse conditions. The result was a stabilized, protected roof assembly that restored the structural integrity of the barn and prevented further deterioration. This project highlights our team’s ability to respond rapidly, adapt to challenging environments, and deliver high-quality spray foam solutions under extreme conditions—ultimately saving the customer’s barn.

The Green Cocoon

Historic Residential Renovation

Projects
This 7-bedroom, 6.5-bath, 7,415-square-foot oceanfront residence in Beverly, Massachusetts—known historically as Burnside—is a landmark New England estate originally constructed in 1857. Over its 170-year history, the home remained in the same family for six generations and evolved through multiple architectural periods, including Classical Revival and Queen Anne influences. The property features expansive grounds overlooking Plum Cove, numerous fireplaces, and sweeping ocean views, making it a significant example of historic coastal architecture.

The Green Cocoon   The Green Cocoon

Following its sale in March 2024, the new owner undertook a comprehensive restoration with the goal of improving energy performance while returning the home to its former grandeur. To achieve this, the structure was fully gutted to the studs, allowing for a modern, high-performance building envelope to be integrated within the historic framework.

The Green Cocoon   The Green Cocoon

Our team installed 7 inches of closed-cell spray polyurethane foam along all rooflines, 3 inches of closed-cell spray foam in the exterior wall assemblies, and 4 inches of closed-cell spray foam on all basement ceilings. This approach created a continuous air, vapor, and thermal barrier throughout the building, dramatically improving energy efficiency, indoor comfort, and moisture control. In addition to thermal performance, the closed-cell foam added measurable structural rigidity—an important benefit for a 19th-century coastal home exposed to harsh marine conditions.

The Green Cocoon   The Green Cocoon

Despite the challenges inherent in working within a historic structure, our crews delivered a precise and consistent installation. Exceptional speed, attention to detail, and jobsite cleanliness allowed the project to be completed under both time and material projections. The result is a historically significant home that now meets modern performance expectations while preserving its architectural legacy—reflecting our team’s commitment to quality, professionalism, and excellence in spray foam application.

The Green Cocoon   The Green Cocoon

Ultra Efficient Waterfront Home

Projects

This 12,000-square-foot oceanfront residence in Newcastle, New Hampshire exemplifies the seamless integration of high-performance building science with exceptional architectural design. From the ground up, energy efficiency and durability were central to the construction strategy.

The home’s foundation was constructed using insulated concrete forms (ICFs), establishing a strong and highly efficient thermal base. Above grade, the entire structure was wrapped in continuous exterior insulation to minimize thermal bridging and maximize overall envelope performance. Building on this foundation, our team installed 7 inches of closed-cell spray polyurethane foam along all rooflines and 2 inches of closed-cell spray foam in the exterior wall assemblies, creating a robust, continuous air and vapor barrier throughout the home.

The Green Cocoon used ROCKWOOL Comfortboard® 80 on Arlington home   The Green Cocoon used ROCKWOOL Comfortboard® 80 on Arlington home

Architecturally, the project presented unique challenges. Numerous cathedral ceilings and complex roof geometries required extensive multi-level staging, strict fall-protection protocols, and careful coordination to ensure both safety and precision. Additionally, the extensive use of LVL framing demanded advance planning; all LVL members were adhesive-primed weeks ahead of installation to guarantee proper foam adhesion and long-term performance.

The Green Cocoon used ROCKWOOL Comfortboard® 80 on Arlington home

Despite these complexities, our crews delivered a consistently high-quality installation. Uniform foam application, clean transitions, and meticulous attention to detail were maintained throughout the project, all while keeping a clean and organized jobsite. The finished result is a high-performance coastal home that balances comfort, efficiency, and durability—showcasing our team’s technical expertise, professionalism, and commitment to excellence in spray foam installation.
Spray foam insulation

The Role of Thermal Bridging in Home Heat Loss – And How to Fix It

Blog, Thermal Bridging

Have you ever wondered why some parts of the house remain cold, despite the heat being on? Or maybe you want to know the reasons behind your winter heating bills being so high? One of the main reasons behind all these issues is thermal bridging and it mostly happens in older houses. Knowing about thermal bridging is important for making your house pleasant and less power-consuming. In this blog, we will help you understand more about thermal bridges and its effects on your home.

 

What Is a Thermal Bridge?

 

The job of your home’s insulation is to keep the heat inside during the winter. A thermal bridge is like a hole or a gap in that blanket. It is an easy path for heat to travel from inside your warm house to the cold outdoors. The situation arises when conductors, like wood or metal, penetrate the insulation. These materials have excellent heat conduction properties, and thus the heating system has to exert more effort, which is reflected in the rising energy expenses.

 

What Are the Sources of Heat Loss?

 

Thermal bridges always serve as lonely exits for heat to move on to the other side of the house. Thermal bridges usually occur in the walls where the wooden and metal studs are located. Even though the insulation between the studs is efficient, the heat still escapes through the studs. Heat is lost not only in the points where walls connect with the floor or ceiling, but also around windows and doors, and so forth. If the openings created for pipes or vents are not properly sealed, they can leak heat as they interconnect from the interior and the exterior.

 

The Effect of Thermal Bridging

 

The extent of the effect thermal bridging  is very much underestimated. Professional home insulation contractors should find  problematic areas and recommend the most effective solution. The most effective method to stop thermal bridging is to form a continuous layer of insulation. The use of modern insulation materials and techniques can do wonders . The application of spray foam insulation is one of the most effective approaches. When applied, the spray foam expands to fill all the cracks and gaps, thereby creating a barrier through which air cannot move thus preventing heat from being lost.

 

There are several types of spray foam, and each has its advantages and disadvantages to consider. Closed cell spray foam insulation is a very heavy and tough material. It can bear a very high R-value and at the same time it serves as a barrier against moisture, thus it can be applied in basements or crawlspaces. Open cell spray foam insulation is a lighter, more flexible foam that is very good at sound control and is usually applied on walls and attics. A technician can guide you to which one is the best for your house.

 

Cellulose attic insulation is another great option for stopping thermal bridges, especially in attics. This product is composed of recycled paper. It is loose cellulose insulation that is blown into place around the pipes, wires, and joists, filling all the voids and creating a continuous thermal barrier. Moreover, it is an eco-friendly material that’s highly effective in maintaining warm air within the attic and, consequently, throughout the entire house. By incorporating a cellulose attic insulation product, you can effectively minimize heat loss through your roof.

 

Conclusion

 

One of the best investments at home is improving your home’s insulation to reduce thermal bridging. The right insulation will increase the comfort in your house as well as bring you huge savings on your energy bills. The choice between closed cell spray foam insulation with its moisture-blocking characteristics and open cell spray foam insulation with its sound-dampening quality boils down to one thing: continuous barrier creation. If you need a professional home insulation contractor to guide you in this matter, get in touch with The Green Cocoon. We provide professional spray foam insulation services along with other eco-friendly options like cellulose attic insulation to maximize your energy efficiency.
spray foam insulation

Why R-Value Alone Won’t Save You Money on Energy Bills

Blog, R-Value, Save Money

Most homeowners will first hear the term "R-value" when it comes to insulation. It is a common measure adopted by manufacturers, retailers, and even some contractors to ascertain the performance of insulation. Although R-value is important, it will not help you save on your power bills. 

The fact is, the energy efficiency of your home does not just rely on a number. The quality of installation, air sealing, and the form of insulation material you use have a significant influence on the extent to which your home can retain conditioned air. 

At The Green Cocoon, we are here to help homeowners make wise choices regarding insulation. The following will break down why R-value is not the entire story and what you also need to look at to gain real energy savings. 

What is R-Value? 

R-value is a thermal resistance measure. The greater the R-value, the more effective the insulation is in contain the flow of heat. For example, a wall that has R-19 insulation will resist heat transmission compared to one with R-11 insulation. 

When insulation has been poorly woven, compressed, or encircled by air leaks, the efficiency R-value may considerably diminish. 

This implies that even a home that has high R-value insulation can lose energy unless the installation is airtight or the material does not work under your unique circumstances. 

Why R-Value Alone Isn't Enough 

1. R-Value is Compromised by Air Leakage

One of the largest energy loss causes in homes is air movement. Naturally, warm air ascends and escapes via attics and cold air sneaks in via cracks and gaps. Unless insulation is combined with appropriate air sealing, the highest R-value material will not help you to stop the rise of your energy bills. 

2. Condensation and Moisture Problems 

Dryness is equally significant to thermo resistance. Some forms of insulation, such as closed-cell spray foam insulation, are both a thermal barrier and a moisture barrier. Otherwise, insulation may not be as effective as time passes, causing you to be less comfortable and spend more money. 

3. Material Matters More Than You Think 

Insulation is not a one-size-fits-all. For example:

  • Open-cell foam insulation is great for interior wall soundproofing as well as air sealing. 
  • Closed-cell spray foam insulation has higher R-values per inch and doubles up as a vapor barrier; thus, it is best suited to basements, crawl spaces, and roofs. 

Selecting the appropriate material in the appropriate area is the key to significant savings. 

4. Installation Quality Makes or Breaks Performance 

The most insulated product may not work correctly if installed improperly. When they do not fit the bats properly, or there are gaps in and about the electrical boxes, or when there is an uneven application of spray foam, this lowers efficiency. This is why it is important to work with insulation contractors. 

The Impact of Building Science on Saving Energy 

Energy efficiency has to do with the home as a system. Walls, windows, roofs, HVAC systems, and insulation all interact. An improvement in R-value in itself will not help unless you deal with the interaction between these components. 

For example: 

  • Even with an attic having R-38 fiberglass, the attic can still consume energy with air leakages are not sealed. 
  • A basement that is simply finished using fiberglass could experience condensation unless an airtight substance such as closed-cell foam is used. 
  • Framing or outlets with gaps in the walls can decrease the overall performance of high R-value insulation. 

When you take the number out of the picture and look more at the system, you will get the true picture of what you can save. 

Best Methods For Homeowners to Save Energy 

Select the Material to use in specific spaces 

Collaborate with Reliable Home Insulation Companies 

Select a company that considers your home as a whole and offers solutions that suit your needs and does not necessarily sell the product with the highest R-value.

Conclusion: Beyond R-Value to Real Energy Savings 

Even though R-value is a significant parameter in insulation performance, it is not the only parameter that counts. Whether your home becomes energy efficient depends on air sealing, moisture control, the choice of material, and the quality of the installation. 

To reduce your utility or energy costs and to enhance your year-round comfort, you cannot afford to be satisfied with insulation solutions that are limited to R-value. 

Collaborate with The Green Cocoon, the reliable brand in insulation that is environmentally friendly and allows us to make your house more efficient. 
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