The My Quality Windows, Roofing, Siding & More of Shelby Twp layer beneath your shingles is small, but in Michigan winters and spring thaws the underlayment’s performance can determine how long your roof protects the house.
Below I compare the main underlayment options, describe how Michigan climate stresses them, and list installation practices that make a real difference.
Significance of Choosing the Right Underlayment
Why your underlayment decision should be local
Shelby Township homeowners deal with deep freezes, ice dams, and sudden spring melts that create lots of water movement on roofs.
If shingles are damaged by hail, wind, or age, a quality underlayment limits how much water reaches the wood below and how fast rot starts.
Types of Underlayment Suitable for Michigan
Underlayment options and the pros and cons for Michigan homes
Felt underlayment, sold as 15# or 30# rolls, is the long-standing baseline product. Pros of felt include low cost and straightforward installation for crews already comfortable with it. However, felt soaks up moisture, distorts when saturated, and deteriorates with prolonged exposure to sunlight, making it less resilient during repeated freeze-thaw and ice dam cycles.
Synthetic underlayments, made from woven or spun-bond polypropylene or polyester, resist water, tear less, and lie flat even when exposed. Installation speed with synthetic underlayment reduces the window when the roof deck is vulnerable to rain. Quality varies, so choose a synthetic with good manufacturer specs for UV exposure and a textured surface for safe footing during work.
Self-adhering rubberized asphalt underlayment is the go-to for eaves, valleys, and around penetrations where ice dams and driven rain concentrate. These membranes form a seal to the deck and around nails, so water that gets underneath shingles cannot track freely to the wood. They cost more and require dry, clean surfaces for adhesion, so install timing and deck preparation matter.
Best Practices for Underlayment Installation
How pros use underlayments together on a Michigan roof
The practical approach mixes products depending on exposure. Use self-adhering rubberized membrane in eaves, rakes, valleys, behind step flashing, and around chimneys. Synthetic in the field with rubberized products at critical transitions combines durability with targeted waterproofing. If budget limits a full upgrade, prioritize self-adhered membrane at all potential water-concentration areas.
Installation details that affect performance
Correct fastener placement and depth matter; over-driven nails can rupture underlayment or compromise stickiness on self-adhering membranes. If the deck is damp or frosty, delay peeling and sticking until conditions meet the product’s installation instructions. Good attic ventilation and a tight interior vapor barrier reduce moisture load on the deck and help underlayment last longer.
How a homeowner should choose and work with a contractor
Ask for the exact underlayment brands and where each will be used, and compare manufacturer exposure and adhesion specifications.
An experienced company can confirm the cause with a quick inspection.
Make sure your roof crew installs underlayment to the manufacturer’s guidelines for overlaps, nailing, and temperature limits. Contracts that specify brands, exposure lifetimes, and warranty terms protect you if the product underperforms.
A pragmatic pick for Michigan climate
For most homeowners, the best compromise is peel-and-stick at critical areas and a reputable synthetic underlayment for the roof field, giving long-term protection without the highest cost. If you cannot afford a full synthetic system, at least insist on peel-and-stick at the eaves and valleys to prevent the most common failures. The right installer matters as much as the material; pick a licensed, experienced crew familiar with Shelby Township weather patterns and ice-dam mitigation.
My Quality Windows, Roofing, Siding & More of Shelby Twp
Address: 4030 Auburn Rd Ste B, Shelby Township, MI 48317Phone: 586-701-8028
Website: https://mqcmi.com/shelby-township
Email: [email protected]