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Roofing mistakes that could lead to costly consequences, from the guide on 5 simple errors.

5 Simple Roofing Mistakes that Could Have Costly Consequences

4 minute read


The roof is arguably the most important aspect of your home.  Not only is it a critical component of your home’s overall curb appeal, the roof is the first line of defense in keeping water out of and away from your home.  Simple roofing mistakes can have costly consequences to the interior and structure of your home.

Flashing Not Fastened Properly During Installation

When installed properly, flashing prevents water from seeping into your home from the rooftop.  Commonly made of metal or galvanized steel, flashing is found around roof vents, chimneys, windows, dormers and along any valleys in the roof. Properly installed flashing will have the U-shape facing toward the valley and be securely fastened along the edges. Flashing should be layered under the shingles, rather than on top of them, to prevent water seepage and consequent damage. According to the National Association of Certified Home Inspectors, counter-flashing installed along hard surfaces, such as stone or brick chimneys, will often be installed and fastened incorrectly. Check these areas closely for any gaps in the installation or sealant that could allow water access.

Pressure Washing the Shingles

We are very conscious of how our roof looks – we see it every time we pull in the driveway – and the itch to clean it can be strong when it appears dirty.  Bringing a pressure washer to the roof with the intention of washing away some dirt can do far more harm than good. Blasting streams of highly pressurized water at composition roof shingles will remove more than dirt.  Roof shingles are comprised of water-resistant materials including asphalt granules that protect your home from leaks. Pressure washing the roof will remove dirt and strip these granules from the shingles, leaving your home unprotected.  If you strongly feel that your roof needs a cleaning, your best course of action would be to contact a professional roofer to discuss options you may have to improve the appearance of your roof.

Improper or Inadequately Ventilated Roof 

A properly ventilated roof will allow moisture caused by temperature differences in the inside and outside air to escape from the attic areas of your home.  Improper ventilation can trap this moisture causing mold and algae growth throughout your home’s structure.  Improper ventilation can also encourage ice dams to form causing further damage in areas with snowy winters.  Proper roofing ventilation can extend the life of your roof, saving you money over the long run.

Not Planning for Ice Dams

If your home is located in a cold climate, you should plan for the formation of ice dams during the winter months. An ice dam is a layer of ice that forms along the eave line of a roof.  Generally when you see icicles hanging from the edge of a roof, there is an ice dam behind it.  Ice dams are formed when the temperature of a roof is uneven, generally warmer at the top and colder along the eaves. Snow will melt on the warmer portions of the roof and form sheets of ice at the colder edges called ice dams. These ice dams force water under the shingles, if the roof is not insulated enough.  Guard against water damage from this ice formation by making sure to regularly clean out your gutters.

Not Diverting Water from Drains Away from the Base of Your House

If you keep water out of and away from your home, you will significantly increase the life of the building.  Foundation erosion, basement flooding, and soil deterioration all occur due to improper water drainage.   According to the Environmental Protection Agency, an extended rain spout of at least five feet should be sufficient to drain water from your rooftop and eaves and away from your home. Draining water away from your home will prevent foundation erosion and resulting mold caused by constant dampness due to rain and snow melt.

Utah Roofing Repair

Your home is more than your castle; it is your single most important financial investment. Simple preventative steps today, such as checking for properly functioning flashing and water diversion, can greatly reduce the chances of water damage and costly headaches down the road.

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Bonnie Anderson AvatarBonnie Anderson
I love my windows. The service was great. The installation crew were excellent. They were very careful to my property and did an excellent job cleaning up after job was completed - 6/12/2026 
David Edward Robinson AvatarDavid Edward Robinson
My wife and I were very satisfied with Advanced Window Products. Replacing eight 60-year-old single-pane aluminum windows was a smooth process, from the accurate descriptions and color selection to the precise measurements.As promised, the windows were ready two months after we placed our order. The installers were very careful when removing the old windows from the brick walls and installing the new custom double-pane windows. They completed the entire project in just five hours, and the windows look great. - 6/11/2026 
Joshua Huston AvatarJoshua Huston
I recently had all my windows replaced and had a great experience with Advanced. That sales process was quick and respectful without having to sit through a long drawn out sales pitch. They were efficient with their time at our home and they will dows are great. We have noisy neighbors and with the new windows we dont hear their late night music which is such an added bonus. Our home temperature also has stayed consistent with a decent reduction in our cooling costs. - 6/10/2026 
Jeanette Holmes AvatarJeanette Holmes
We recently installed 13 new Advanced Windows and have already noticed a difference in the heat efficiency of the windows. The installation team was right on time and finished in less than a day! We have received many compliments on the looks of the windows. They were easy to work with through the whole process of purchase, communicating timelines, scheduling and installation. The windows are a great product and at a good price. I recommend working this Utah company. - 6/08/2026 
Rebekah Reeder AvatarRebekah Reeder
Advanced Window Products replaced 10 of my windows 4 years ago and I love them. I'm getting 4 more replaced this year. - 6/05/2026 
Paul Pace AvatarPaul Pace
Crystal Nielson-Barney went out of her way to help us. They made beautiful windows in time for us to sell our house, and when we accidentally broke a pane in the new window, Crystal made sure we had the replacement in just over a week so that we could close on selling our house. We highly recommend Advanced Windows and their professional team. - 6/05/2026 
Jill Nelson AvatarJill Nelson
We recently had our windows replaced by Advanced Window Products, and we couldn't be happier with the results. From the initial consultation with Joe to the final installation, the entire process was smooth, professional, and stress-free.A special thank you to Miguel and Rogelio, who did an outstanding job with the installation. They were punctual, courteous, highly skilled, and paid close attention to detail throughout the project. Their craftsmanship and professionalism were evident every step of the way.The new windows look fantastic, and we've already noticed improved comfort and energy efficiency in our home. The work area was kept clean throughout the installation, and everything was completed in a timely manner.We also appreciated that Advanced Window Products proactively coordinated the removal and reinstallation of one of our interior shutters to ensure the project was completed properly and without inconvenience to us.We highly recommend Advanced Window Products to anyone looking for high-quality window replacement and exceptional customer service. Our experience exceeded expectations, and we are extremely pleased with the outcome. - 6/02/2026 
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