Our Story
At 475 High Performance Building Supply, we are dedicated to transforming the construction industry by providing the essential components for airtight, vapor-intelligent, and energy-efficient enclosures. From advanced membranes like SOLITEX MENTO to precision sealing solutions, we empower builders and architects to create healthy, sustainable homes that stand the test of time.
What Our Customers Say
★★★★★
“The airtightness tapes and membranes are game-changers for my Passive House projects. Exceptional quality and fast shipping.”
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David R.
★★★★★
“Incredible technical support. They helped me select the perfect high-performance insulation for my deep energy retrofit.”
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Sarah M.
★★★★★
“Premium products that actually deliver on energy efficiency. The best source for sustainable building materials online.”
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James K.
Why Choose Us
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Superior Performance Materials
Premium airtight and vapor-intelligent solutions for durable buildings.
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Eco-Friendly Solutions
Sustainable building components designed for extreme energy efficiency.
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Expert Technical Support
Professional guidance for high-performance building and passive house standards.
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Build Better With High Performance Materials
Maximize your home's efficiency and durability with our industry-leading sustainable building solutions.