Top 10 Building Materials That Termites Love (and Hate)

When it comes to home construction, not all materials are created equal — especially in the eyes of termites. These silent destroyers are constantly on the lookout for food sources, and certain building materials make your home more appetizing than others.

Whether you’re building a new home, planning a remodel, or just trying to understand how termites see your property, this guide will walk you through the top 10 building materials termites love — and hate — and what you can do to protect your investment.

Materials Termites Love

1. Untreated Wood

This is a termite’s dream. Softwoods like pine, spruce, and fir are especially vulnerable. If wood is used close to soil or in damp environments without proper treatment, it becomes a buffet.

Tip: Termites often find their way in through hidden spots like crawl spaces, fence posts, and porch supports where untreated wood is in contact with soil.

2. Plywood

Plywood is commonly used in subfloors, roof decking, and wall sheathing — and it’s made of layers of wood glued together. Unfortunately, those glue seams can hold moisture, making plywood even more attractive to termites.

3. Particle Board / MDF

These engineered woods are made from sawdust and resin — and they absorb moisture like a sponge. Once damp, they’re incredibly easy for termites to chew through.

4. Mulch (Especially Wood-Based)

While not technically a building material, mulch placed near the foundation is a major attractant. It retains moisture and offers an easy bridge from the soil to the structure.

Preventative move: Keep mulch at least 12–18 inches away from your foundation and don’t let it pile up against siding.

5. Framing Lumber Near Soil Contact

Even pressure-treated wood isn’t invincible. Over time, the treatment can wear down — especially in areas of high moisture — making it vulnerable. Framing lumber that’s placed too close to grade level is a common entry point.

Materials Termites Hate (or Can’t Eat)

6. Concrete

Termites can’t chew through concrete, but they can exploit cracks as small as 1/32 of an inch to squeeze through. Don’t assume a concrete slab means termite-proof — it just shifts where they look for entry.

7. Steel and Metal

Metal studs and framing are a good choice in termite-prone areas, especially in commercial builds. Termites don’t feed on metal at all — though they’ll still look for nearby wood to eat if the opportunity arises.

8. Cement Fiber Board (e.g., HardiePlank®)

Used for siding and trim, fiber cement boards offer a wood-like appearance without the termite risk. They’re durable, moisture-resistant, and unappetizing to pests.

9. Plastic / PVC Trim

More and more builders are using plastic-based trim to prevent moisture problems and pest issues. These materials don’t provide any food value to termites.

10. Pressure-Treated Lumber

While not completely termite-proof, pressure-treated lumber is chemically treated to resist both moisture and insects. It’s a solid line of defense when used properly — especially for decks, fences, and ground-contact structures.

Tip: Always check for labels when buying treated wood — different treatments work for different threats (e.g., rot vs. termites), and not all treated wood is rated for ground contact.

Why It Matters for Homeowners

You don’t have to be building a new home to think about your materials. Termites don’t care how old your home is — they care about two things: food and access.

If your home has moisture issues, wood-to-soil contact, or damaged siding, it could be at higher risk — even if you’ve never had termites before.

A termite inspection from a trained professional can reveal:

• Hidden vulnerabilities in construction materials

• Signs of existing termite activity

• Recommendations for preventative treatment or structural fixes

At Specter Pest Control, we offer thorough termite inspections using industry-leading tools and years of experience. We know what termites look for — and more importantly, how to stop them.

Ready to Protect Your Home from Termites?

Whether you’re concerned about the materials in your existing home or want to be proactive with a new build or renovation, it pays to understand how termites think.

Schedule your free termite inspection with Specter Pest Control today. We’ll walk your property, identify any potential trouble spots, and help you build a solid defense — all with honest advice and friendly, expert service.

Let’s keep termites where they belong: far away from your home.