# Class 4 Impact-Resistant Shingles Boise ID | Shingle Roofing Boise

> UL 2218 Class 4 rated shingle installation for Treasure Valley homes sitting in the path of the region's May-August hail season, with a documentation packet you can take to your insurer to ask about a premium discount.

URL: https://shingleroofingboise.com/class-4-impact-resistant-shingles-boise/

## Price

$500-$800 roofing square (100 sq ft) installed. directional premium over standard architectural shingle pricing — ask your insurer for a specific discount figure before assuming payback.

## What's included

- On-site inspection and a written per-square price for Class 4 impact-resistant shingle installation
- Full tear-off to the deck with sheathing inspection before install begins
- UL 2218 Class 4 rated shingle installed to manufacturer nailing and exposure spec
- New synthetic underlayment and ice-and-water membrane at eaves and valleys
- A documentation packet — product spec sheet and UL 2218 rating — to submit to your insurer for a possible premium discount
- New drip edge, pipe boots, and step flashing sized to the new shingle profile
- Ridge cap installation and an attic ventilation check as part of the full install
- Final walkthrough with photos for your records and your insurance file

## Process

01. **Inspection & comparison quote** - A written per-square price for Class 4 shingle, laid out side by side against a standard architectural quote so you can see the actual difference.
02. **Tear-off & deck prep** - Full removal down to the deck, with any needed sheathing repair identified and priced before install starts.
03. **Class 4 install** - UL 2218 rated shingle installed to the manufacturer's fastening and exposure spec.
04. **Insurance documentation** - Spec sheet and impact-rating documentation handed over for you to submit directly to your insurer.

## When it's needed

- You recently had a hail claim paid out and are replacing the roof anyway
- Your insurer has mentioned a premium discount for impact-resistant roofing
- Your current shingles show a history of repeat hail bruising or claims
- You're in a part of the Treasure Valley with a track record of hail losses
- Your insurer requires proof of an impact rating to apply a discount
- You're comparing upgrade options before a full re-shingle after storm damage

## FAQ

**Will installing Class 4 shingles actually lower my insurance premium?**

Some Idaho insurers offer a discount for Class 4 roofing, but the amount and eligibility vary by carrier and policy. Call your insurer with the product spec sheet before assuming a specific payback period.

**What makes a Class 4 shingle different from a standard architectural shingle?**

Class 4 shingles use a reinforced, often polymer- or rubber-modified mat that passes the UL 2218 steel-ball impact test at the highest rating tier — meaning the mat resists cracking and bruising under hail impact better than a standard laminate mat.

**Do Class 4 shingles cost a lot more than regular architectural shingles?**

Typically $150-200 more per square installed compared to a standard architectural line. Whether that premium pays off depends on your insurance discount and how much hail exposure your roof actually sees.

**Do Class 4 shingles still get damaged in a bad enough hailstorm?**

Yes — Class 4 reduces the odds and severity of impact damage, it doesn't make a roof hailproof. Large enough hail can still crack or bruise even a Class 4 rated shingle.