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Serving Washington County

Shingle Roof Repair in Hillsboro, OR

Repairing asphalt shingles in Hillsboro and the towns around it: lifted tabs, cracked shingles and edges that moss has loosened.

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  • Roof repair and full replacement
  • Moss, wet-season leaks and wind damage
  • Pitched roofs across Washington County

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Shingle Repair

Shingle Roof Repair: what it covers

Quick answer

Shingle repair replaces or re-seals individual shingles that have lifted, cracked or lost their bond. A roofer checks the seal, looks for moss or water damage underneath, matches the shingle where it can and writes each repair into the scope.

Shingle Roof Repair illustration for Hillsboro, OR

Shingles are the covering most homes here carry, and their repairs are the most frequent small jobs on a roof. A tab that lifts in a windstorm, a shingle that cracks along a line of moss or an edge that has curled after years of wet weather are all repairs that are simple when they are caught early and harder once water has worked into the deck.

Moss is a particular cause in this area. The FACTS sheet, drawing on OSU Extension, says moss can lift shingles so that water gets underneath. The lifted edge is often under the moss, which is why the cleaning and the repair are checked together.

This page explains how shingle repairs are tested, matched and recorded. Nothing here promises a match in every product line, and the roofer says so before the work begins if one cannot be found.

Service area
Hillsboro & Washington County
Availability
Call to reach a local roofer
Warning signs

Signs you need shingle roof repair

Wet shingles are slippery. Do not walk a shingle roof in rain, and do not climb onto a mossy slope. Look from the ground, and let the roofer work with fall protection.

  • A tab that stands up at the lower edge after a windy night
  • A shingle cracked along a line, often where moss has held water
  • Edges that have curled or cupped after a long wet spell
  • Granules washed into the gutters from a worn or stained area
  • A bare, dark patch where the surface has been knocked off
  • A ceiling stain below a slope that is heavy with moss
Our process

How our shingle roof repair visit works

  1. Test the seal on a sample

    Shingles are lifted gently to test whether the tab tears or bends and whether the sealant strip still bonds. The result shows whether a few shingles or a larger section needs work.

  2. Check under the damaged shingles

    The layer under the lifted tab is checked for water staining and soft sheathing. Moss held against the shingle is noted, since it often marks the water route.

  3. Identify the shingle line

    The roofer identifies the product line from a shingle removed or from the roof's markings and tries to match it, since a mismatch is visible.

  4. Replace, re-seal and fix the nails

    Damaged shingles are replaced with the correct nails, and sealant is laid where the product calls for it. Nails that have backed out are reset, and the row above is checked.

  5. Record the repair and its match

    The record names each shingle replaced, its slope and position, the line matched or not matched and the sealant used. Photographs are kept with the file.

How does moss lift a shingle?

By holding water against the shingle and under its lower edge, so the sealant loosens and the tab rises in the next wind.

Moss forms a mat that holds water against the shingle surface and into the seam at the lower edge. Through long wet spells the sealant strip softens and lets go, and the tab rises. In a windstorm the raised tab can tear, and the shingle beneath it is exposed.

A roofer who finds a lifted tab under moss checks the layer below for water damage, because the water that lifted the tab may have reached the deck.

  • Moss holds water at the lower edge
  • The sealant softens and lets the tab rise
  • A lifted tab under moss needs the deck checked

When is a shingle repair enough?

When the shingles lift without tearing, the sealant still bonds in most places and the deck below is sound.

A repair is the right answer where the covering is still flexible and most of its bonds hold. A few lifted tabs and a handful of cracked shingles are repairs. A roof where the tabs tear when lifted, or where the sealant has failed across a large area, is near the end of its life, and the roofer says so in writing.

The roofer lifts a sample across the roof before deciding, so the decision rests on the whole covering and not on the worst spot.

  • Flexible shingles that lift without tearing
  • Most bonds still holding
  • A sample test across the roof before the decision

Why is the match hard to find?

Because shingle lines change over time. A product may be discontinued or re-coloured, and the new one may look different on an older roof.

Shingle lines are sold for a while and then replaced. An older roof may carry a line that is no longer made in the same colour or profile. A repair with a visible mismatch is an honest result, and the roofer should say so before the work begins.

Where no match is found, the options are a visible patch, a larger section replaced or a full slope. Each is written into the quote, so the choice is made with the facts.

  • Identify the line from a removed shingle
  • Say whether a match is possible before work starts
  • Write the mismatch and its options into the quote

What should the written scope list?

Each shingle by slope and position, the line matched or not, the sealant used and the test after the repair.

A shingle scope names the slope and the number of shingles replaced on it. It states the line and the colour, or says that no match was found. It names the sealant used on lifted tabs and records the test after the repair.

A scope that gives only a count is hard to check. A scope that gives positions lets the next roofer find each repair.

  • Shingles by slope and position
  • The line matched, or no match stated
  • The sealant and the test after the repair

What a shingle repair looks like in the wet months

A repair in wet weather is delayed, because sealant and tabs do not bond on a damp surface, so the roofer books a dry window.

Sealant does not bond to a wet shingle, and a repair made in the rain fails at the first warm spell. A roofer books the shingle work for a dry window and says so on the call, so the homeowner is not surprised by a delay.

Where a tarp is needed in the meantime, the roofer places it from a safe position and records the date, so the permanent repair can be planned around it.

  • Sealant needs a dry surface to bond
  • The repair is booked for a dry window
  • A tarp is placed and dated until then
Options

Types and options for shingle roof repair

Lifted tab repair

Re-sealing tabs that have lifted but not torn. Often the cheapest repair and the one that stops the tab tearing in the next wind.

Cracked shingle replacement

Replacing cracked or split shingles with the matching product, with the row above checked for the same fault.

Edge and moss-damage repair

Repairing edges that moss or long wet spells have lifted, after the moss is cleared and the underlayment is checked.

Washington County

Why shingle roof repair is different in Portland metro

The FACTS sheet, citing OSU Extension, says moss can lift shingles so water gets underneath, and a shingle repair in a mossy area starts with the cleaning.

FACTS.md gives no sourced share of pitched roofs for Hillsboro, so this page does not state how common shingle roofs are in the city.

Repairs in Forest Grove, Cornelius and the towns to the west are made the same way, and the travel is shown on the quote.

Need shingle roof repair today?

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Where we work

Shingle Roof Repair across Washington County

Not sure if you're covered? Check your ZIP code.

Related

Moss Removal and Roof Cleaning

Cleaning moss and algae off roofs in Hillsboro and the Washington County towns around it, done carefully so the covering is not damaged.

Roof Decking Repair

Replacing damaged roof sheathing in Hillsboro and the towns around it, sheet by sheet, so the new covering sits on a sound deck.

Gutter and Downspout Repair

Restoring gutters, downspouts and outlets in Hillsboro and nearby towns, cleared of moss and leaves so roof water is carried clear of the walls.

Guides

Read before you book

Why Moss Grows on Roofs in Hillsboro, and What It Does

Oregon State University Extension's roof-moss guidance, as recorded in this site's fact sheet, says moss on Pacific Northwest roofs is largely a result of constant moisture, that shade makes it thrive, and that it can lift shingles so water gets underneath.

FAQ

Shingle Roof Repair FAQs

Can a single shingle be replaced?

Often, if the line can be matched. If not, the roofer says so and explains the choice.

Why do tabs keep lifting?

Usually the sealant has lost its bond or a nail has backed out, and moss can be part of the cause. The roofer checks both.

Should I remove the moss before the repair?

Yes. The roofer cleans the moss first, so the repair is checked on a clean covering.

Will a repair match the rest of the roof?

It may not, if the line has changed. The roofer tells you before the work starts.

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