Fabric Covers – PowerShield Membrane

MegaDome Fabric Buildings Covers

Fabric covers are at the heart of every MegaDome structure—engineered for performance, longevity, and protection in the harshest environments. Whether you’re replacing an existing cover or customizing a new installation, our fabric covers are designed to maximize light transmission, reduce condensation, and withstand snow, wind, and UV exposure. With options tailored for agriculture, municipal use, industrial operations, and more, MegaDome fabric covers deliver unmatched durability and peace of mind.

PowerShield Membrane - Standard

The PowerShield membrane represents the most advanced polymer technology on the market. The exceptional quality of polyethylene provides unmatched strength and perfect waterproofing 

With natural light transmission, these fabric covers create a bright environment that surpasses traditional buildings, significantly reducing the need for artificial lighting and contributing to notable energy savings.

Additionally, our fabric covers are the first in the world to receive Cradle to Cradle (C2C) certification, thanks to our partner NovaShield. This distinction highlights their positive impact on sustainability across five key categories, reinforcing their eco-friendly value for both users and the planet.

fabric cover - powershield
fabric covers - workers

Fabric covers assembled in Our Factory

The PowerShield® membrane is manufactured in our facility, where our expert team assembles large fabric covers panels into a single piece using a hot-welding process.

Rigorous quality controls are conducted throughout production to ensure thickness consistency, weld strength, and uniform color, resulting in a high-quality, seamless, and durable fabric cover.

PowerShield Membrane - Agricultural (Exclusive)

agricultural fabric covers

We exclusively offer the PowerShield® Agricultural membrane, specifically designed to meet the needs of livestock farmers. These fabric covers help create a brighter, cleaner, and safer environment by promoting solar sterilization, a process that can lead to significant savings on veterinary costs. Additionally, humidity levels remain lower with our membrane compared to standard options.

Our fabric cover allows 30% more light transmission than other available alternatives.

light transmission
0 %

Benefits

Sunlight is a natural ally for animal health and a powerful lever for reducing veterinary costs. Through solar sterilization, UV rays act as a natural disinfectant, effectively eliminating bacteria, viruses, and spores present in the environment.

Lighting plays a key role in dairy cow productivity. Adequate exposure to light can stimulate their metabolism and promote better milk production.

A lower humidity level in the livestock environment has a direct impact on health.

Optimizing natural lighting helps reduce energy costs while improving animal well-being.

Strategic use of daylight, thanks to well-designed structures and reflective materials, limits reliance on artificial lighting and reduces electricity consumption.

PowerShield Membrane - Fire Retardant

At MegaDome, we understand that safety is a top priority. That’s why we offer fire-retardant (FR) fabric covers that meet the most stringent industry standards.

Our fire-retardant membrane is designed with self-extinguishing properties, meaning it stops flames rather than fueling them—unlike many other building materials.

The Result?
  • Enhanced protection for your assets
  • Full compliance with the strictest building codes

With MegaDome, performance and safety always go hand in hand.

Certified to Meet:
  • NFPA 701-2015 (Method 2)
  • NFPA-701 (1989) Large Scale
  • CAN/ULC S109-M87 (Large Scale)
  • ASTM E84-00a (Class 1)
fabric covers
Fabric Building for Public Works: Megadome Construction

Fabric Covers Installation

Proper installation is essential to the performance and longevity of your structure’s fabric cover. At MegaDome, our certified installation teams ensure a precise fit and tensioning process to eliminate wrinkles, prevent premature wear, and reduce maintenance needs. Our streamlined installation protocols minimize downtime and maximize structure lifespan. 

Need help onsite? We also offer supervised installations to support local crews or contractors.

Fabric Cover Warranty

Our fabric covers come backed by one of the industry’s most trusted warranties. Standard covers include a 15-year pro-rated warranty, while our Elite option offers up to 20 years of coverage. We only use North American-made membranes with proven performance in Canadian and northern U.S. climates, ensuring long-term protection against UV degradation, rips, and discoloration. Warranty claims are handled promptly by our in-house support team for complete customer confidence.

fabric covers

Standard vs. Elite Fabric Covers: How to Choose

Choosing between our Standard and Elite fabric covers depends on your site conditions, building use, and performance expectations:

Feature Standard Cover Elite Cover
Membrane Weight 12 oz/yd² 14 oz/yd²
Light Transmission High Optimized for balance
UV Resistance Excellent Superior (enhanced additives)
Warranty 15 years (pro-rated) Up to 20 years (pro-rated)
Best for General storage, ag applications Harsh climates, high-traffic use

Not sure which is best for your building? Our team can help you evaluate your needs based on local climate, usage, and structure size.