Fiberglass - An old technology  for today's needs

 Fiberglass insulation has a fascinating history, rooted in advancements in materials science and industrial manufacturing. Here's an overview of its development:

Early Beginnings
The concept of creating fibers from glass dates back to ancient times. For example, the Egyptians used a rudimentary form of glass fibers for decorative purposes as early as 1600 BCE. By the late 19th century, European and American glass makers experimented with drawing glass into thin fibers for various applications.

Modern Fiberglass Invention
The creation of modern fiberglass insulation is attributed to an accidental discovery in 1932. A researcher at Owens-Illinois (now Owens Corning), Dale Kleist, was trying to seal two glass blocks together but instead created fine glass fibers when compressed air accidentally struck molten glass. In 1938, Owens-Illinois and Corning Glass Works partnered to form Owens Corning, which focused on developing and commercializing fiberglass products. They trademarked the term “Fiberglas®” for their products

World War II and Beyond
During World War II, fiberglass was used as a lightweight and durable material for aircraft and other military equipment. Its insulating properties also gained attention during this time. After the war, fiberglass insulation became widely available for residential and commercial use. It was marketed as an efficient and affordable way to improve energy efficiency and comfort in buildings.

Insulation Properties
Fiberglass insulation is made by spinning molten glass into fine fibers, which are then bonded together. The trapped air within the fibers helps reduce heat transfer, making it an effective thermal insulator. It also provides soundproofing benefits and is resistant to fire and moisture, making it a versatile material for construction.

Environmental and Safety Advances
In the mid-20th century, concerns arose about the potential health risks of inhaling fiberglass particles. Manufacturers improved production methods to minimize risks, creating safer, more eco-friendly products. Modern fiberglass insulation often includes recycled glass and has become a key component in energy-efficient building designs.

Current Use
Today, fiberglass insulation is one of the most common insulation materials globally, used in residential, commercial, and industrial applications. It has evolved significantly since its invention, with modern variants designed for improved performance, environmental impact, and ease of installation.
By Lee Duerst March 8, 2025
If you are pondering an old fashioned, and very effective, root cellar to store your prolific garden products, but someone else in the household wants a “man cave,” you may need to be creative! A man cave and a root cellar may both be personal, purpose-built spaces, but they serve completely different functions! Here’s how they compare: Feature Man Cave 🏀🎮🍻 Root Cellar 🥔🍏❄️ Purpose Personal retreat for relaxation, entertainment, or hobbies. Food storage to keep produce fresh and prevent spoilage. Location Basement, garage, spare room, or shed. Underground, partially buried, or in a basement. Climate Comfortable, heated/cooled for enjoyment. Naturally cool and humid for food preservation. Contents TV, gaming consoles, bar, recliners, sports memorabilia. Root vegetables, fruits, canned goods, and sometimes meats. Main Users The homeowner (usually men, but anyone can enjoy it!). The entire household benefits from stored food. Lighting Bright or ambient lighting for atmosphere. Dark or dimly lit to prevent food spoilage. Ventilation Standard air conditioning or fans for comfort. Special vents to regulate temperature and humidity. Longevity Used for entertainment and leisure over time. Built to extend the shelf life of food. Bottom Line: A man cave is about relaxation and entertainment, while a root cellar is about practical food storage and survival. Unless you enjoy snacking on raw potatoes while watching the game, they serve very different purposes! 😆 Maybe you should consider combining the two—a "Man Cave Root Cellar" where you can store beer, snacks, and men underground: the “spuds and studs” room! 🍺😂
By Lee Duerst March 6, 2025
So, you want to put in some new insulation in the attic. No big deal, and you can save some money. Just go down to Home Depot and buy a few rolls of fiberglass insulation, climb up into the attic, and pack the stuff between the joists. Easy peasy. Well, maybe not. You can install your own insulation, but whether you should depends on factors like the type of insulation, the area being insulated, and your skill level. When DIY Insulation Might Be Okay: ✅ Small, accessible areas (e.g., attic floors, basements, or crawl spaces) ✅ Batt or roll insulation that requires minimal cutting or special tools ✅ Blown-in insulation if renting the proper equipment and following instructions When to Hire a Professional: ❌ Spray foam insulation – Requires specialized equipment and safety precautions ❌ Wall insulation (retrofit) – Involves drilling holes or removing drywall ❌ High-risk areas – Around wiring, plumbing, or ventilation where improper installation could cause issues ❌ Code compliance concerns – Professionals ensure insulation meets local building codes and energy efficiency standards Bottom Line: If you're confident in your skills and it's a simple project, DIY insulation could save money. But for larger, more complex jobs or for optimal energy efficiency, hiring a professional is often the safer and more effective choice.
Roof with spray foam insulation showing closed cell spray insulation services in Madison, WI by Duer
March 5, 2025
Explore why homeowners choose Closed Cell Spray Insulation in Madison, WI for superior protection. Call Duerst Insulation Technicians at (608) 850-3773 today!
By Lee Duerst March 4, 2025
The insulation industry is evolving with advancements in materials, sustainability, and energy efficiency. Here are some key trends shaping the future of house insulation: 1. Sustainable & Eco-Friendly Insulation Homeowners and builders are prioritizing environmentally friendly materials that reduce carbon footprints and improve indoor air quality. Popular choices include: • Cellulose Insulation (made from recycled paper) • Sheep’s Wool & Cotton (Denim) Insulation • Cork Insulation (renewable, biodegradable) • Hempcrete & Mycelium-Based Insulation (emerging bio-based options) 2. High-Performance & Smart Insulation • Vacuum Insulation Panels (VIPs) – Extremely thin yet highly efficient insulation used in modern construction. • Aerogel Insulation – Super-insulating material with ultra-low thermal conductivity. • Phase-Change Materials (PCMs) – Absorb and release heat to regulate indoor temperatures. 3. Spray Foam Innovations • Low-VOC & Non-Toxic Spray Foam – Reduces harmful emissions while maintaining high insulation performance. • Bio-Based Spray Foam – Uses plant-derived components instead of petroleum-based chemicals. 4. Prefabricated & Modular Insulation Systems • Pre-cut and prefabricated insulation panels for quick and efficient installation in modular homes and prefab construction. • Structural Insulated Panels (SIPs) – Combining insulation and framing for highly efficient, airtight structures. 5. Smart & Adaptive Insulation • Smart Insulation with IoT Sensors – Monitors temperature, humidity, and air quality to optimize home insulation performance. • Self-Healing Insulation – Materials that repair minor cracks and leaks, enhancing longevity. 6. Government Incentives & Energy Efficiency Standards • Increasing adoption of stricter building codes (e.g., Passive House, LEED, Net Zero Energy Homes). • Tax credits and rebates for homeowners using high-performance insulation to reduce heating and cooling costs. 7. Circular Economy & Recyclable Materials • More manufacturers are focusing on closed-loop production, where insulation can be reused or recycled instead of going to landfills. • Cradle-to-cradle insulation solutions ensure minimal environmental impact from production to disposal. Future Outlook The future of house insulation is leaning towards high-efficiency, sustainable, and smart solutions that maximize energy savings while minimizing environmental impact. As regulations tighten and technology advances, homeowners can expect better-performing, eco-friendly, and cost-effective insulation choices.
By Lee Duerst March 3, 2025
The pioneers who settled the vast prairies of North America faced a landscape rich in grass but scarce in trees. With lumber hard to come by, they turned to the land itself for shelter, building sod houses with thick grass -or sod - roofs. These roofs, made by layering strips of sod over wooden beams, provided excellent insulation against the harsh winters and scorching summers. The deep roots of the grass helped hold the soil together, preventing erosion and offering a natural waterproofing effect. Despite their humble appearance, these homes were warm, sturdy, and blended seamlessly with the rolling plains. Life under a sod roof came with its quirks. During the rainy season, some families would place buckets beneath persistent drips, as early construction methods weren’t always perfect. Occasionally, small critters—mice, insects, or even snakes—found their way through the thick turf, leading to shrieks and hasty removals. Yet, the grass roofs also had their charm. Birds nested in the greenery, and goats or other livestock sometimes climbed atop for an easy meal. Children would watch in delight as the roof became a living part of their homestead, teeming with life and ever-changing with the seasons. However, if the pioneers were expecting to achieve a high "R-value" with their eco-friendly approach to keeping their humble abodes comfortable, they were disappointed. The "R-value" of a grass roof depends on its thickness, moisture content, and soil composition. On average, grass roofs have an "R-value" of around 0.25 to 0.5 per inch of thickness. Typical R-Values Based on Thickness: - 6-inch frass roof → R-Value of 1.5 to 3 - 12-inch grass roof → R-Value of 3 to 6 Comparisons: - Modern fiberglass insulation: R-3.0 to R-3.7 per inch - Modern spray foam insulation: R-5 to R-7 per inch - Wood (1-inch thick): R-1 As time passed, settlers gained access to sawmills and manufactured materials, and grass roof houses gradually disappeared in favor of wooden or brick homes. Still, the legacy of the grass roof remains a testament to pioneer ingenuity and resourcefulness. Modern eco-conscious builders have revived the idea in the form of green roofs, recognizing the same benefits that pioneers once relied upon—natural insulation, sustainability, and harmony with the land. Though the days of frontier sod homes are long gone, the knowledge they provided continues to influence construction today.
By Lee Duerst February 24, 2025
The amount an average homeowner can save by switching to energy-efficient light bulbs depends on the number of bulbs replaced, the type of bulbs used, and electricity costs. Here we show a breakdown of potential savings with the LED (light-emitting diode) bulb versus the Incandescent (traditional) bulb:
By Lee Duerst February 23, 2025
Icicles can be beautiful, but they often indicate underlying issues with your home’s insulation and ventilation. Here’s a breakdown of why icicles form on a house roof: 1. Heat Escaping from the Home : When warm air from your home escapes into the attic, it can cause the snow on your roof to melt. This is often due to inadequate insulation or air leaks. 2. Melting Snow: As the snow melts, the water flows down the roof. If the temperature drops, especially at the eaves (the edges of the roof), this water can refreeze, forming icicles. 3. Ice Dams : Icicles are often a sign of ice dams, which occur when melting snow refreezes at the roof's edge. This can block further melting snow from draining off the roof, leading to more water pooling and freezing. 4. Poor Ventilation : Inadequate attic ventilation can exacerbate the problem. If the attic is not properly ventilated, it can trap warm air, causing more melting and refreezing. 5. Insulation Issue s: If your home has poor insulation, it can lead to significant heat loss, contributing to the melting of snow on the roof and the formation of icicles. In essence, icicles are often a sign that your home may need better insulation and ventilation to prevent heat from escaping into the attic. Addressing these issues can help reduce icicle formation and prevent potential damage from ice dams.
By Lee Duerst February 17, 2025
Some of those boxes may be in your attic. No, not to store old clothes, the kids' (now in college) childhood toys, and other items simply too valuable to part with. But as cellulose insulation. Cellulose insulation is an eco-friendly type of home insulation made primarily from recycled paper products, such as newspaper or cardboard. When treated with non-toxic fire retardants, such as boric acid, cellulose provides fire resistance, pest resistance, and mold prevention. Types of Cellulose Insulation 1. Loose-Fill Cellulose – Blown by machine into attics or wall cavities. 2. Dense-Pack Cellulose – Packed tightly into walls for higher insulation efficiency. 3. Wet-Spray Cellulose – Less often seen and primarily in new construction, when mixed with water and adhesive, this material sticks well to surfaces. Benefits of Cellulose Insulation • High R-Value (thermal resistance) for effective insulation. • Eco-Friendly – Made from 80-85% recycled materials. • Good Air Sealing – Reduces drafts and air leaks. • Soundproofing Qualities – Absorbs noise better than fiberglass. • Fire and Pest Resistant – Treated to prevent ignition and deter insects. Cellulose is a cost-effective and sustainable option for insulating attics, walls, and floors in homes and buildings.
By Lee Duerst February 17, 2025
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By Lee Duerst February 4, 2025
Insulating for winter... and summer and spring and.... Does weather matter?
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