Published by Artisan Quality Roofing • Serving Apex, Cary, Raleigh, Durham, Chapel Hill • 300+ five-star reviews
Most homeowners think of shingles when they picture a roof—but there’s a critical layer underneath that protects your home from leaks, moisture, and wind-driven rain. It’s called roof underlayment, and it plays a vital role in keeping homes across Apex, Cary, Raleigh, Durham, and Chapel Hill dry and damage-free.
🧱 What Is Roof Underlayment?
Roof underlayment is a protective layer installed between the roof deck (usually plywood) and the outer roofing material (like shingles or metal). It acts as a secondary moisture barrier, shielding your home from water infiltration if the top layer is compromised.
Think of it as your roof’s backup plan—especially during storms, ice buildup, or high winds. Without it, even a small leak can lead to mold, rot, and costly interior damage.
🔍 Types of Roof Underlayment
- Asphalt-Saturated Felt: Traditional “roofing felt” made from cellulose or fiberglass and saturated with asphalt. Economical and widely used, but less durable than modern options.
- Synthetic Underlayment: Lightweight, tear-resistant, and mold-resistant. Made from polypropylene or polyethylene. Ideal for high-performance roofing systems and long-term durability.
- Rubberized Asphalt: Peel-and-stick underlayment with superior waterproofing. Often used in valleys, eaves, and low-slope areas for extra protection.
We typically recommend CertainTeed synthetic underlayment for its UV resistance, fast installation, and long-term performance.
📍 Why It Matters in Apex, Cary, Raleigh, Durham & Chapel Hill
In the Triangle region, roof underlayment is essential due to our mix of humidity, heavy rain, and seasonal temperature swings. It helps prevent:
- Leaks from wind-driven rain and storm damage
- Moisture buildup from ice dams and poor ventilation
- Mold and rot in roof decking and attic spaces
- Interior water stains and ceiling damage
Whether you’re replacing a roof or repairing storm damage, underlayment is a non-negotiable layer of protection for homes in our climate.
💡 Bonus Benefits of Modern Underlayment
- Fire Resistance: Some synthetic underlayments meet Class A fire ratings for added safety
- Noise Reduction: Helps muffle rain, hail, and wind for a quieter home
- Energy Efficiency: Certain breathable underlayments help regulate attic moisture and temperature
- Extended Roof Lifespan: Quality underlayment can add years to your roofing system’s performance
According to industry data, underlayment can extend roof life by up to 25
