What Kind of Work Is Included with Residential Roofing Jobs?

If you’re in the market for a new roof, you may not have much experience shopping for one. That’s actually a good thing. You want your roof to last for as long as possible. In fact, depending on the type of materials used, the average roof can last 20+ years. That means if all goes according to plan, you shouldn’t need a new roof installation more than a few times during the course of your homeownership.

But perhaps the time has finally come, and you find yourself in need of a roof replacement. If you’re uncertain what services are included with residential roofing jobs, then you’ve come to the right place for some clarification.

Interstate Roofing has been helping residential customers such as yourself for more than 30 years. Our customers keep coming back because they know we go above and beyond in providing quality service, as well as long-lasting roof replacements and installations. Here’s everything you can expect when you hire Interstate Roofing to perform your residential roofing job.


A quality roofer should first inspect your roof to determine the best course of action. It may not be necessary, for instance, to replace your roof altogether. Instead, your roofer may be able to replace broken tiles or shingles or repair areas of the roof that are damaged or deteriorating. If you have a leaky roof, a qualified roofer may also be able to repair the problem areas and seal them to make them watertight.

If your roof does need to be replaced, then your roofer should recommend a new installation and thoroughly discuss all your options. There are many types of roofing materials to choose from for residential roofing jobs. A roofing contractor will explain each type to you and explain the details, including brand, color, price, and warranty information so that you’re able to make the best possible selection for your home.


Regardless of whether you choose to repair or replace your roof, a trusted contractor will provide you with a detailed estimate. In fact, you should be wary of any roofing contractor who is reluctant to provide a written estimate prior to performing a large job. For large projects, such as new roof installation, you should have a sense of the project scope, length, and cost before the first tile is ever laid.

If you decide to hire the roofing contractor, make sure they outline the project details for you in writing as well. This should include the project start and end dates, a detailed description of the contracted work to be performed, including the type of materials to be used, cost and payment terms, as well as insurance and license details. A workmanship warranty should be outlined in the contract as well. More on that in just a bit.

In addition to a written contract, the state of Oregon requires certain notices to be provided to a homeowner before the project begins. Before you hire anyone for a roofing project, make sure they’re fully insured and licensed, and provide you with all the required information. For a list of required notices for residential roofing projects, take a look at Interstate’s documents list.


In some cases, you may be able to opt in on maintenance agreements with your roofing contractor. Making sure your roof is properly maintained and cared for is incredibly important in prolonging the life of your roof, making it look its very best and getting the maximum possible return on your investment. It’s also sometimes a requirement of the manufacturer’s and workmanship warranties.

We highly encourage you to inquire about a maintenance agreement with your roofing contractor. With an Interstate Roofing maintenance agreement, not only do you have a professional roofing contractor observing your roof on a regular basis, saving you the personal safety risk of having to inspect it yourself, you’ll also have priority access to our after-hour emergency leak response team. That means you’ll have priority in service if a leak occurs. With an Interstate Roofing maintenance agreement, you’ll be able to weather any storm knowing that if you need us, we’re only a phone call away.


Residential roofing jobs should always include a warranty for the work being performed. But keep in mind, there are different types of warranties you’ll need to have.

First, you’ll want to have a manufacturer’s warranty to cover the materials used in the project. But in addition to this, you’ll also want to inquire about a workmanship warranty. This will guarantee the work performed by your roofing contractor.

Interstate Roofing has 5-, 10-, and 15-year warranties available so you can select the one that suits you best. In addition to these three options, we also offer transferable warranties. If you decide to sell your home or pass it down to a child or grandchild, you can transfer the warranty to the new homeowner for a small fee. This ensures the workmanship warranty remains in effect for the new homeowner and can even be a great selling point should you ever decide you want to settle elsewhere.

A new roof installation can be an investment that pays dividends in return. But only if you choose the right roofing contractor to perform the job. All of these features should be a part of any large residential roofing project. So before hiring anyone, make sure the company provides these services in addition to offering a competitive workmanship warranty.

Do your research beforehand as well. Three-fourths of our work at Interstate Roofing comes from repeat customers and new referrals. That’s because we have built an excellent reputation as an industry leader and we stand by our work. Whoever you hire for your residential roofing job should be able to say the same.

Summer Is the Perfect Time for Roof Repair in Portland: Do You Need It?

What does it mean when the weather turns beautiful, the kids are out of school, and the smell of barbeque is wafting down the street? It must be summertime in the Pacific Northwest—and that means it’s also the perfect time to consider repairing your roof. In fact, you may have already Googled “roof repair Portland, Oregon,” recently because you’ve started thinking about whether or not your roof might need some TLC.

The warm-weather months are the ideal time to get serious about these types of improvement projects, so let’s look at some of the factors that might determine whether you need to repair your roof.

The Importance of Roof Inspections

Your roof protects your home and everything inside of it from rain, sun, snow, and wind, so it’s especially important to maintain and keep it in good working condition. Because your roof is a complex structure that’s exposed to nature’s elements every single day of the year, there are numerous issues that can come up. And when it comes to your home, an ounce of prevention is most definitely worth a pound of cure. Or, in other words, regular maintenance is good for both the appearance of your home and your wallet. Dealing with any needed repairs sooner rather than later will end up saving you money in the long run.

Roof damage can be obvious, like the quintessential drip-drip of water into a bucket due to a leaky roof, or noticing damaged or peeling shingles. It can also be subtle, so you’ll need to be on the lookout to be able to recognize the signs of damage. This could mean doing an inspection of the roof anytime there’s extreme weather or if your roof is getting old. Even if your roof is on the newer side and the weather has been fair, it’s still a good idea to pay attention and prevent any minor problems from becoming bigger. When inspecting the roof, remember to look at the exterior and the interior. Roof damage can happen anywhere.

Specific Signs to Look For

When checking the outside of the roof, there are a few warning signs that indicate a need for repairs. The first is the visible presence of discoloration and water spots, which are small areas of water damage that will eventually warp shingles and the exterior finish. It’s especially important to pay attention to where the roof and the exterior walls meet. Damage can certainly create visible distortion in this transition area, so you should be able to detect any signs of a problem.

Similarly, make sure to check around the chimney, vent pipes, skylights, and other objects that are in contact with your roof, as these areas are subject to wear first. Visible signs of wear to shingles or damaged flashing should be taken care of immediately, and usually minor roof repairs will fix the situation. Either way, it’s best to have these areas looked at by a professional as soon as possible to avoid leaks.

While inspecting your roof, make sure to also look at the gutters. One sign of a damaged roof is the presence of small granules resembling black sand clogging up the gutters. These granules likely come from shingles that are either damaged or have been exposed to the elements for too long, and it’s a good indication that you should also look at the shingles themselves. They might be breaking down due to weather or the lack of proper ventilation from the inside. Are the shingles curled at the ends? If they are cracked or curling, it means they’re nearing the end of their lifespan. Missing shingles also mean you need roof repairs, because they should be replaced as soon as possible.

To monitor roof damage that’s happening on the inside, make sure to pay attention to the attic space and rooms closest to the top of the house. If there is significant water damage, it will begin to warp the ceiling and walls of the rooms below. You might notice small—or large—spots of brown staining on the ceiling or on the insulation in the attic. Homes with hardwood floors may also start to see drops or puddles of water in the middle of the room. If you notice the decking or rafters in your attic are sagging downward instead of remaining straight, they may be wet from leaking moisture; this can usually be managed with repairs if the issue is localized.

Another thing to look for while checking the interior is outdoor debris inside of your home, as this can mean there’s a hole somewhere in the roof. Speaking of holes, if you can see any streams of light coming into the attic or any other room underneath the roof, it’s an opening that could also let water in. This is usually a sign that your roof needs immediate repair so as to avoid additional damage to both the interior and exterior of your home.

I Need Roof Repair! Now What?

If you’ve discovered that roof repair in Portland is something you’ll be searching for due to coming across any of the above warning signs, pause for a moment and congratulate yourself for being a responsible homeowner who is staying on top of their roof repairs (no pun intended).

Next, consult with a seasoned professional such as Interstate Roofing that can help you take care of the issue, sooner rather than later. Remember that summer is the perfect time for roof repairs in Portland, so you’ve picked the right time to do it. You can ensure your home will be protected from the elements once the autumn and winter weather returns.

When Buying a Home, Don’t Forget to Look Up

Why looking at the roof is essential before buying a home.

A roof inspection is an important part of home-buying. If you’re in the market for a new home, you’ve likely considered many factors, including location, price, and the home’s condition. When it comes to condition, though, many home buyers fail to take the time to look up and inspect the roof. Unless you’re planning on buying a fix-and-flip home to rehab and sell, taking time to look at the roof can save you money, stress, and inspection woes.

Do You Really Need to Look at the Roof?

Home buyers know that an inspection is an essential step in the purchasing process. However, you might not realize that a roof inspection is also key to making a wise buying decision. After all, the average cost for roof replacement on a moderately sized home is about $20,000. Buying a home only to find out weeks or months later that the roof needs to be replaced can put a serious dent in your budget.

Understand the Basics of Roof Inspection

If a thorough roof inspection won’t be included in the inspection report for a prospective home, you may wish to hire a professional roofing company to conduct one for you. The roofing contractor will assess the state of the roof and list any roof repairs that will need to be made in the coming years. Of course, you can also get up on the roof and take a look around yourself.

When it comes to inspecting a roof, one of the most important features you’ll need to take into account is roofing material. For most buyers, materials and the overall quality of the roofing job are the key factors that indicate the health of a roof. Before inspecting, familiarize yourself with the following roofing materials and concerns:

• Asphalt shingle roofing is incredibly popular and can last up to 20 years. When inspecting an asphalt roof, look for signs of curling shingles, split shingles, and a decrease in the roof’s granulation, or texture.

• Clay tile roofing is widely used in Ranch and Southwestern homes and can be incredibly durable. When it comes to clay roofs, you’ll need to pay particular attention to the underlayment beneath the tiles. You should look at overall water flow and be aware of any cracked tiles.

• Metal roofing tends to last the longest of all roofing types. Be wary of rust, loose fasteners, and roofing that can be moved by hand with ease.

• Foam roofing only lasts for 10 to 15 years but is inexpensive. Look for holes, discoloration, and signs that water is ponding, or collecting.

If you’re concerned about the roof on a home you’re about to buy, consider calling in a professional roofing contractor. At Interstate Roofing, we’re proud to help buyers throughout the Portland, OR, area. Give us a call today at 503-684-5611 to talk about your roofing inspection, repair, or replacement needs.

Is Your Roof Green or Just Plain Overgrown?

When your roof is green for the wrong reasons, the results can be damaging.

Algae on your roof doesn’t make it a green roof. With the current “green roof” trend, it’s not uncommon to see plants sprouting on top of homes and businesses. Unwanted roof growth, on the other hand, is damaging rather than environmentally conscious. This kind of green can threaten the integrity of your roof, resulting in damage to the surface and the underlying structure.

What’s Growing on the Roof?

Several common types of growth can cause roof problems. Moss is the most recognizable, popping up between shingles as small tufts of green. These tufts hold moisture, keeping the roof damp and encouraging the growth of mold.

Mold comes from a wide variety of fungal spores that can spread quickly. This not only weakens the roof but also has a tendency to cause health problems, especially for people with allergies. Some types of mold lead to serious infections that require medical treatment.

Lichen is a mixture of algae and mold that grows in green “splotches” on shingles. Collections of powdery spots mean that you’re dealing with mildew, a common problem in damp climates. Plain old algae is also commonly found growing on roofs in streaks or spots of green, blue-green, or black.

All types of growth can cause wooden roof shingles to rot and asphalt shingles to erode. This opens up gaps between shingles that let in water every time rain falls or snow melts. The end result is the same: a compromised roof structure that will need to be repaired long before it reaches the end of its intended lifespan.

Damage Prevention Through Roof Maintenance

Routine cleaning and maintenance of your roof is essential to preserving the materials and prolonging the life of your home. There are a few simple steps you can take to remove existing greenery and prevent its recurrence, including:

• Choosing roof materials that resist growth
• Trimming trees and other plants away from the roof to prevent moisture buildup
• Using commercial roof cleaners and growth inhibitors to combat mold and mildew
• Hiring a professional service to remove severe growth and perform regular cleaning

When cleaning the roof yourself, avoid products containing chlorine bleach because they may strip the color from the shingles and create runoff that can damage your lawn.

If you look up to find that your roof has bloomed into a mess of greenery, call Interstate Roofing. We offer extensive roof cleaning services that can get your Portland home back into top shape before serious damage is done. Contact us when you’re ready to give your roof a brand-new start.

After the Storm: Assessing a Weather-Damaged Roof

An immediate assessment of roof damage is crucial after a severe stormRegular roof maintenance can prevent most damage, but unexpected problems may arise when the weather turns nasty. Severe weather can create conditions that threaten the structure of the roof and your home as a whole.

Watch Out for Weather

Storms bring different hazards, depending on the season. Rain storms may include high winds that carry debris, break tree limbs, or uproot entire trees. Thunderstorms are notorious for dropping hail. In the winter, ice and snow accumulate on just about every surface and create runoff when the temperature warms up. Any of these conditions can wind up damaging your roof.

What to Look For

It’s a good idea to assess your roof for potential damage after any kind of storm. Start with an inspection from the ground and look for:

• Lifted or missing shingles
• Noticeable gaps between shingles
• Dented areas created by hailstones
• Broken, bent, or hanging gutters
• Any obvious debris or fallen trees

If it’s safe, you can climb up on a ladder and look for cracked shingles or collections of granules in the gutter that suggest shingle damage.

Inside, you want to make sure that there are no leaks evident in the ceilings or the attic. Check air vents and the junctions between the roof and the house for damage as well. Keep a record of anything you find to help you evaluate the extent of the damage and determine your next step.

Roof Repair – What’s Next?

Since it’s not always possible to see the extent of roof damage yourself, it’s a good idea to call in the pros. Trained specialists can spot potential problems that you may have missed. Contact your insurance company with your complete list and find out if they’ll cover the estimated repair costs.

If you’re comfortable working on a roof, you can fix minor damage yourself. Missing or loose shingles can be replaced and small cracks re-sealed. Some repairs may only hold for a little while and are meant to keep your home safe until more extensive work can be done. However, you shouldn’t make any repairs on your own if the roof is unsafe to work on or if you’re unfamiliar with the process.

Whatever you find after the storm, Interstate Roofing in Portland, OR, can provide the roof repair services you need. Contact us to assess your home and determine the extent of the damage. Our technicians will get to work quickly on repairing and replacing all the compromised parts of your roof so that you can get back to living your life without worry.

Are Those Patchy Spots on Your Roof Hiding Danger Zones?

Common problems that may be causing your roof to deteriorate.

Your home’s roof is constantly exposed to changing weather conditions and other hazards that can threaten its integrity. Weather, installation problems and general exposure are all potential culprits when it comes to a damaged roof.

Weather Woes

  • Every type of weather has an impact on your roof. A few common issues include:
  • High winds that lift up shingles
  • Rainwater seeping under shingles, causing mildew and rot
  • Snow and ice accumulation, melting and refreezing, leading to ice dams that impair drainage
  • Condensation during humid weather that encourages decay in the attic below
  • Overhanging tree branches that rub on shingles and cause abrasion
  • Damage from fallen tree limbs
  • Growth of unsightly moss or algae, resulting in further moisture damage
  • Damage to shingles from any extreme weather condition

Finally, there’s regular old wear and tear from exposure to all of these elements over the years. The roof faces more direct contact with the elements than other parts of your home, making it important to check for damage on a regular basis.

Structural Defects

Problems with the roof structure may result from harsh weather, age, lack of adequate ventilation or improper installation. If the roof wasn’t designed to accommodate natural expansion and contraction or has a weak underlying structure, it could result in problems with drainage or bowing under heavy loads such as snowfall.

Anything that causes poor drainage can spell disaster for overall roof structure. Standing water leads to dampness which, over time, can cause roof materials to deteriorate. An uneven roof is often the culprit when it comes to accumulation of water and debris, though weather-related factors could be to blame as well.

Sometimes your roof just plain wears out from age. Old shingles are susceptible to splitting, tearing, cracking, peeling and curling while membrane roofs may blister or rip.

Maintaining Roof Integrity

The most important part of roof care—and the thing that will help prevent small problems from becoming big headaches—is regular roof maintenance. Neglecting your roof means that you won’t see damage until it rears its head in the form of costly repair bills. Other steps to take include installing proper ventilation in your attic to prevent dampness and condensation, and using the right kind of supports and flashing when installing antennas and other rooftop structures.

When your roof needs more care than you can give it, visit Interstate Roofing’s website here for a free estimate on the help you need. We’ll tackle any job from repairs to replacement in order to get your roof back in top shape and minimize future damage.