Roof Underlayment Types: Felt vs. Synthetic vs. Ice & Water Shield
Roof underlayment is the water-resistant layer installed on the roof deck before shingles go down. The three main roof underlayment types are asphalt-saturated felt, synthetic, and rubberized ice and water shield. Felt is the cheapest and shortest-lived. Synthetic lasts longer and resists moisture better. Ice and water shield is required in New Jersey at the…









