Understanding the Parts of Your Roof | Absolute Roofing
Know Your Roof. Trust the Experts Who Build It Right.
Your roof does more than just keep rain out — it’s a carefully engineered system designed to protect, insulate, and ventilate your home. At Absolute Roofing, we believe that the more homeowners know about their roof, the better they can protect their investment.
Whether you’re planning a new installation, repair, or full replacement, understanding how your roof works helps you make confident decisions — and choosing the right roofer makes all the difference.
The Main Parts of a Roof (Explained by Local Roofing Pros)
Your roof isn’t just shingles — it’s a system of layers that all work together to shield your home from Wisconsin and Illinois weather.
Here’s a breakdown of every key component:
1. Roof Decking (Sheathing)
The decking is the foundation of your roof — usually made from plywood or OSB (oriented strand board). It’s attached to the roof trusses and supports all the layers above.
💡 If your decking is rotted or damaged, Absolute Roofing will inspect and replace it to ensure a strong, safe foundation before new materials are installed.
2. Underlayment
This protective layer sits directly on top of the decking. It provides a moisture barrier against rain and snow that get past the shingles.
We use high-quality synthetic underlayment for better durability and water resistance than traditional felt.
3. Ice and Water Shield
In cold climates like Southeast Wisconsin and Northern Illinois, this is essential.
The ice and water shield is applied in vulnerable areas — eaves, valleys, and around vents or chimneys — to stop leaks from ice dams or wind-driven rain.
4. Roof Flashing
Flashing is made from metal strips placed around chimneys, vents, skylights, and valleys to direct water away from seams and joints.
Poorly installed flashing is one of the most common sources of roof leaks — but Absolute Roofing’s certified installers ensure precise, watertight sealing every time.
5. Drip Edge
A drip edge is a narrow piece of metal installed along the edges of your roof. It directs rainwater away from your fascia and into your gutters, preventing water damage and rot.
Many roofers skip this small detail — we never do.
6. Shingles or Roofing Membrane
This is the visible, outermost layer that provides protection and curb appeal.
Asphalt shingles – the most common residential option
Specialty shingles – designer styles that mimic slate or cedar
Metal panels – durable, long-lasting, and energy-efficient
EPDM or TPO membranes – ideal for flat or low-slope commercial roofs
💪 Absolute Roofing installs all these systems with precision — tailored to your property and budget.
7. Ridge Vent and Roof Ventilation
Proper ventilation is critical to a healthy roof system.
Ridge vents, soffit vents, and attic fans allow hot air and moisture to escape, preventing mold, rot, and premature shingle failure.
Our team checks your attic ventilation on every job to ensure your roof performs for decades.
8. Fascia and Soffits
The fascia is the board beneath your roof’s edge that supports your gutters, while the soffit is the underside that ventilates your attic.
Both are vital for aesthetics, airflow, and moisture control — and Absolute Roofing offers repair and replacement for both.
9. Gutters and Downspouts
Though technically separate from the roof, gutters and downspouts are crucial for channeling rainwater safely away from your home’s foundation.
We install seamless aluminum and steel gutter systems for maximum performance and minimal maintenance.
🏆 Why Homeowners Trust Absolute Roofing
When you understand how many parts make up a quality roof, it’s easy to see why experience matters.
Absolute Roofing has earned its reputation as the most trusted local roofer in Southeast Wisconsin and Northern Illinois because we:
🛠️ Install every layer the right way — no shortcuts, no cut corners
📋 Offer detailed inspections and honest assessments
🔨 Are fully licensed, insured, and manufacturer-certified
💬 Communicate clearly and keep you informed every step of the way
💰 Provide fair, transparent pricing with flexible financing options
📍 Serving Your Local Community with Pride
We proudly serve homeowners in: Kenosha, Racine, Milwaukee, Waukesha, and Walworth Counties (WI) Lake County and McHenry County (IL)
From roof inspections to full replacements, Absolute Roofing is your go-to source for quality craftsmanship and unbeatable service.
📞 Schedule Your Free Roof Inspection Today
Now that you understand what goes into a quality roof, trust the team that does it right — from decking to shingles.
Contact Absolute Roofing today for a free, no-obligation roof inspection or estimate.
📱 Call 262-877-4444 or
💬 Request Your Free Roofing Estimate