# Asphalt Shingle Roof Installation Federal Way WA | Federal Way Roofing

> Architectural and composition shingle roof installation and replacement for Federal Way homes — rated for PNW wind and rain, with moss/algae-resistant options and a written per-square price.

URL: https://federalwayroofing.net/asphalt-shingle-roofing/

## Price

$450-$750 roofing square (100 sq ft) installed. reconciled from 2026 Homeyou Federal Way aggregator data and regional contractor-published ranges — see the cost guide for the full breakdown.

## What's included

- On-site inspection and a written per-square price before any work starts
- Full tear-off to the deck, not a recover-over-existing job, unless a recover genuinely qualifies under code
- Deck inspection and sheathing replacement where moss-driven moisture has caused rot
- High-wind-rated architectural shingle options, including algae-resistant (copper-granule) product lines
- Synthetic underlayment across the field, ice-and-water membrane at eaves, valleys, and low-slope transitions
- New flashing, drip edge, and ridge/hip cap installed to manufacturer spec
- A King County or Federal Way reroofing permit pulled as part of the job
- Full cleanup and haul-away of the old roofing

## Process

01. **Free on-site inspection** - We walk the roof, check the deck where access allows, and note moss/algae extent. You get a written per-square price before we leave.
02. **Permit and material order** - We pull the permit and order the exact shingle line, weight, and color — including algae-resistant options if you want to reduce future moss maintenance.
03. **Tear-off and install** - Deck repaired where needed, underlayment and flashing installed to spec, shingles installed and fastened to manufacturer wind-rating requirements for this region.
04. **Inspection and walkthrough** - Final inspection, cleanup, and a walkthrough of the finished roof before we leave.

## When it's needed

- Shingles curling, cracking, or losing granules in patches
- Moss growing under shingle tabs, lifting them
- Shingles missing or torn after a windstorm
- Roof at or past 20-25 years old
- Dark streaking (algae) across north-facing or shaded slopes
- Visible sagging or soft spots in the roof plane

## FAQ

**How long do asphalt shingles last in Federal Way's climate?**

Standard architectural shingle typically runs 20-25 years here, often less than its rated lifespan in drier climates because moss and algae growth accelerates granule loss and shingle-tab lifting. Algae-resistant shingle lines and regular moss maintenance meaningfully extend that.

**Is algae-resistant shingle worth the extra cost?**

Usually, yes, for this climate specifically. Copper-granule algae-resistant shingles cost somewhat more upfront but measurably slow the moss/algae growth that's the dominant failure driver here — it's one of the few upgrades with a clear climate-specific payoff.

**Can you recover over my existing shingles instead of a full tear-off?**

Sometimes, if code allows (one existing layer, sound deck) — but we're cautious recommending it here specifically, because a recover can't address moss-driven deck damage hiding underneath. We'll tell you honestly which situation you're in at the inspection.

**Do you offer financing or phased payment?**

We don't currently offer in-house financing. We give you a complete written price upfront so you can arrange financing through your own bank or lender if needed before work starts.