At Terra Top Roofing, we’ve seen firsthand the damage that expanded foam (spray foam) can cause when it’s not installed correctly — and unfortunately, that happens more often than you’d think. Here’s why expanded foam can be a bad choice for your roof: 🔎 Traps Moisture Foam can seal in hidden leaks. Instead of allowing water to drain properly, it can trap moisture underneath — leading to rot, mold, and structural damage. 💰 Expensive to Repair Once foam is applied, finding and fixing leaks beco