How do you handle roofing valleys and penetrations?

We spell out exactly how valleys and penetrations are built on your proposal and diagram, then install them to code and manufacturer specs for full warranty coverage.

Valleys

Method (documented up front): We use either open metal W-valleys or closed-cut valleys per your roof system. (We do not use woven valleys on architectural shingles due to telegraphing and debris issues.)
Open metal W-valley: Ice & water shield first, then 24–26 ga. metal (galvanized, aluminum, or copper as specified), hemmed edges, correct lap lengths, and fasteners kept out of the flow line.
Closed-cut valley: Ice & water shield full length, shingle courses properly offset and cut, with manufacturer-required valley width exposed.
High-exposure areas: We may extend ice & water shield beyond code minimums or upgrade metal thickness.

Penetrations

Plumbing stacks: New premium pipe boots (long-life rubber or metal-collared), fastened and sealed; stack height adjusted to code.
B-vents/metal flues: Manufacturer storm collars and high-temp sealant; never buried under shingles.
Skylights: Manufacturer flashing kits (step/head/sill pieces) over ice & water shield—no site-made shortcuts.
Walls & sidewalls: New step flashing under every shingle course with counterflashing let into masonry reglets or properly integrated behind siding; kick-out flashing at the base to divert water.
Chimneys: Full re-flash—step + counterflashing set into mortar joints; add a cricket on wide chimneys to split water and snow load.

Materials & sealants

Metals and fasteners compatible with each other and with your shingle system to prevent galvanic corrosion.
Sealants used as a complement to proper metal laps—not as a substitute. All laps follow shingle-style water-shed logic.

Quality control & documentation

Every valley and penetration is photo-documented during install and at completion.
We verify code and manufacturer compliance for warranty eligibility and include these details in your close-out packet.

Bottom line: valleys and penetrations are your roof’s highest-risk areas—we overbuild them with the right materials, methods, and documentation so they stay dry for the long haul.

View FAQ Page

What Our Customers Are Saying

Colleen T.

“Can’t say enough great things about the company and roofers! Quality work, respectful of my property, on time and cleaned up the property after finished, walked around to see if anything was missed on property, polite and helpful. Everything was explained before project was started, samples were shown and helpful in selecting colors for roof and trim and after project was completed finally billing was explained again! Everyone did their jobs as if they were doing it for a respected family member! Wonderful, highly recommend!”

Jan C.

“Appreciated the time Joshua took with his explanation how the process works installing the roof making sure I understood completely. Honesty is very important to me. He is a valuable asset to the company. I wouldn’t hesitate to refer people to your company. Clients need to feel they are important”

Anna P.

“Brett was so great to work with and we couldn’t be happier with the quality of work! Brothers built a new front porch, resided our home and did some interior work. Would absolutely recommend the team for any of your projects!”

Tess D.

“We needed a whole new roof. I got a few quotes and one company was pretty pushy about getting us to hire them. I then called Brothers and not only was it the lowest quote we received, the whole procedure was seamless. Brett was our rep and he explained everything clearly, answered all of our questions, kept up communication and worked with us on our financing. Brett went out to the house the day of installation to make sure everything was going smoothly. We are so glad we went Brothers. I would definitely recommend this company.”

Don M.

“I had an unusual circumstance with a historic home and a chimney crown that needed to be replaced in a very timely manor. The company went above and beyond to accommodate with a professional and quality replacement of the chimney crown. The crew that did the repair did everything and more that was required, in a short amount of time. They were polite, cleaned up after themselves and I was VERY pleased with what they did. I would and will always recommend Brothers Roofing and Construction.”

Jordan E.

“We recently had work done on our house. Replaced our roof, which was more on the ancient side, and had our siding replaced. Bill and Brett have been amazing to work with! The crew was phenomenal they arrived earlier than we had expected and had the work done in no time. Everyone did a fantastic job, we couldn’t be more pleased with how things turned out.”

Larry C.

“They had replaced our roof a couple of years ago. They really stood up for us with the insurance company, and they handled every bit of it. We never had to talk to the insurance company at all. They did a wonderful job, were on time and clean up was great. We had a couple of bad storms come through recently and we were worried about storm damage. We called them and they promptly came out for an inspection.”

Warren W.

“Repaired deteriorated chimney mortar, cap, and flashing. Josh and crew were replacing the roof next door and noticed my chimney was in danger of falling part. Gave me a quote and started work as soon as their crew finished another job and the weather cooperated for a couple of days. Extremely hard working crew of two! No goofing around, just worked.”

Justin B.

“If you need a roof replaced you need to call Brothers Roofing and Construction. Wish there were 10 stars to rate Brothers Roofing. Will definitely pass the word of their great service to anyone asking about their work. All work was completed in one day. We love our new roof (and gutters).”

More Reviews Leave a Review