🧱 Weirdest Building Materials Ever Used – From Mushrooms to Plastic Bottles

When we think of building a house, we imagine bricks, concrete, wood, and maybe a bit of steel. But the world of construction is far more creative (and weird!) than most people think. From mushrooms to plastic bottles, here’s a tour of the strangest building materials ever used — some sustainable, some experimental, and some just plain bizarre.

🍄 1. Mycelium (Yep, Mushrooms!)

Imagine growing your walls. Mycelium — the root-like structure of fungi — is being used as a natural, biodegradable material for insulation and even bricks. It’s lightweight, fire-resistant, and compostable.

Why it’s cool: It literally grows in a mold, making custom shapes possible.

Fun fact: It’s already used in packaging and even lampshades!

🥤 2. Plastic Bottles

Around the world, millions of plastic bottles are turned into building blocks. Packed with sand or earth and used in walls, they form sturdy, insulating, and affordable structures.

Why it’s cool: Solves two problems at once — waste management and housing shortages.

Where it's used: Widely in eco-housing projects across Africa, South America, and Asia.

🧦 3. Recycled Denim

Jeans that are too worn to wear? They might end up in your walls. Shredded denim is a popular eco-friendly insulation alternative to fiberglass — and it’s surprisingly effective.

Why it’s cool: Soft, safe to touch, and repurposes massive amounts of discarded clothing.

Bonus: No itchiness like traditional insulation!

💿 4. CDs & DVDs

Some artists and eco-builders use old CDs as decorative wall coverings or even reflective roofing material. While it’s more aesthetic than structural, it gives a futuristic vibe to any space.

Why it’s cool: Shiny, recycled, and nostalgic.

Warning: Don’t use it in direct sunlight unless you want your roof to look like a disco ball.

🧱 5. Hempcrete

Hemp + lime = Hempcrete, a strong and breathable building material. It’s lightweight, mold-resistant, and carbon-negative (it absorbs CO₂ while curing).

Why it’s cool: Strong enough for walls, yet flexible and natural.

Fun fact: France has been using it for decades.

🧼 6. Soap

Yes, soap! Artists and designers have experimented with soap bricks and tiles for interior elements. Not ideal for your foundation, but a soapy surface might just be your next bathroom feature.

Why it’s cool: It smells good — at least for a while.

🧃 7. Tetra Paks (Juice Boxes)

Tetra Pak cartons are layered with plastic, aluminum, and cardboard — making them difficult to recycle but incredibly good for insulation. Some innovative companies compress them into panels for roofing and walls.

Why it’s cool: Turns landfill waste into long-lasting building panels.

Eco bonus: Durable and water-resistant.

🧙‍♂️ Final Thoughts

As the world rethinks how we live and build, these odd materials are turning into practical, eco-friendly solutions. Some are already in use; others are still being tested — but one thing’s clear: the future of construction isn’t just concrete and steel.

It might be mushrooms, jeans, or yesterday’s smoothie bottle.

Would you live in a house made of mushrooms or bottles?

Let us know — and stay tuned on fliq.co.uk for more quirky real estate and construction stories!