Boise and the Treasure Valley

Class 4 Impact-Resistant Shingle Installation in Boise, ID

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.

Typical range: $500–$800 per roofing square installed

Call (208) 279-6903

Class 4 Impact-Resistant Shingle Installation underway on a property in Boise, ID

Full tear-off, never a shingle roof-over

Manufacturer wind-rating matched to the product

Permit pulled on every job

Written per-square shingle pricing

Old shingles hauled away

Last updated: 2026-08-19

Shingle Roofing Boise is a roofing company serving Boise and the Treasure Valley, and class 4 impact-resistant shingle installation is one of the services we handle most. This page covers what the work involves here specifically — the climate, the code, and what it costs — rather than what it involves in general.

What we do on the first visit

The first visit is an inspection, not a sales call. We walk the roof with you, check the deck from the attic side where we can, count valleys and penetrations, and note the pitch and how much staging or safety equipment the job needs. We confirm whether any prior layers are on the roof already — code allows a maximum of two before a full tear-off is required — and then you get a written per-square price with tear-off and any deck repair as separate lines.

If we think repair is the better spend than replacement, or a different material suits your situation better, we say so on that visit — including when it means the smaller job for us.

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

What this costs in Boise

Class 4 Impact-Resistant Shingle Installation runs $500–$800 per roofing square installed in this area. Directional premium over standard architectural shingle pricing — ask your insurer for a specific discount figure before assuming payback. The things that move a job up its range are tear-off, how much deck repair is needed, pitch, and how many valleys and penetrations your roof has. If you want a number before you call, the roof cost calculator will get you close.

When it needs doing

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

DIY shingle patching, the cheapest bid, or the job done properly

	DIY weekend	Cheapest bid	Done properly
Shingle match	Whatever the box store has in stock, rarely the same batch/color	Closest shelf match, color mismatch accepted	Matched to the existing run where possible, disclosed honestly when it can’t be
Old layers	Shingled over if code technically allows it	Roofed over to save a step	Full tear-off — the only way to see what’s underneath
Sealant-strip bonding	Installed whatever the weather, no temperature check	Installed on schedule regardless of temperature	Held to manufacturer install-temperature spec so the strip actually bonds
Fastening	Nail gun set to whatever pressure	Meets code minimum, nothing more	Manufacturer wind-rated pattern matched to the shingle line
Permit	Often skipped	Sometimes skipped	Pulled and inspected every time
If it fails	Your weekend, again	Chasing a phone number that stopped working	We come back and fix it

How it works

How class 4 impact-resistant shingle installation runs

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.

Get a free class 4 impact-resistant shingle installation estimate

A real person answers. We walk the roof with you, check the deck, and give you a written per-square price — at no charge and with no pressure.

Call (208) 279-6903

Questions

Class 4 Impact-Resistant Shingle Installation questions

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.

Do you charge for an estimate?

No. Estimates are free across Boise and the Treasure Valley, including the drive. We walk the roof with you, check the deck from the attic side where we can, and hand you a written per-square price with tear-off and any deck repair broken out as their own lines.

Also worth a look

Related services

Architectural Shingle Roof Replacement

Full tear-off architectural (dimensional) shingle replacement for Boise and Treasure Valley homes, installed to manufacturer temperature and fastening spec so the sealant strip actually bonds — with a written per-square price before any work starts.

Storm & Hail Damage Shingle Repair

Hail and wind damage assessment and repair for Boise and Treasure Valley roofs, timed around a hail season that runs May through August and peaks in June and July — with photo documentation built for your insurance claim, not just the repair itself.

Insurance Claim Assistance for Hail-Damaged Shingle Roofs

Treasure Valley hail season runs May through August and peaks in June and July, and a properly documented inspection of granule loss and mat bruising is usually what separates a paid claim from a denied one.