WHAT UNDERLAYMENT DOES
Underlayment sits beneath your tile or shingles and helps protect your home from water. Over time, heat and weather can wear it down, even when the roof surface still looks fine.
When we repair underlayment, we address the damaged area beneath the roof surface to help restore that protection.
SIGNS YOUR UNDERLAYMENT MAY NEED REPAIR
Underlayment damage isn’t always obvious from the ground, but there are clues. Water stains on ceilings or walls, especially after monsoon storms. Tiles that slip or crack repeatedly in the same area. Shingles that curl or lose granules faster than they should. An older roof that’s never had the underlayment checked.
If your roof is 15 to 20 years old or older, the underlayment has been working hard the whole time. It’s worth having it inspected before the next heavy rain season.
TILE ROOF UNDERLAYMENT REPAIR
Tile is durable, but it’s also porous. Water runs under and between tiles, which means the underlayment beneath them handles most of the waterproofing. In older homes, that underlayment can crack, dry out, or pull away from the roof deck after years of Arizona heat.
We lift the affected tiles, repair or replace the underlayment beneath them, and set the tiles back securely. The repair is targeted to the problem area, so you get a watertight barrier without touching the rest of a healthy roof.
SHINGLE ROOF UNDERLAYMENT REPAIR
On shingle roofs, underlayment acts as a second line of defense against water that gets past the shingles, whether from wind-driven rain, worn shingles, or aging seals around penetrations. When shingles are removed for leak repair and the underlayment underneath is damaged, patching the shingles alone won’t hold up.
We check the underlayment whenever we repair a shingle roof leak. If it’s compromised, we repair it as part of the job, so the fix addresses the full path water can take into your home.
CUSTOMER TESTIMONIALS
"Tyler is a pleasure to work with — very clear in communication and prompt to meetings. Sylvia in the office is on the same page. We are very happy to have a new roofing company that we will work with for many years."
— Angel D, Scottsdale, AZ
"I have worked in construction for many years as a design engineer and project manager. Johnson Roofing was the most competitive — they saved us money. Charlie was responsive, efficient, and knowledgeable, provided pictures documenting each stage, and there was no sales pressure. The end result was beautiful. I highly recommend Johnson Roofing."
— Bill M
"Excellent service & professional staff. Easy to contact. They never tried to encourage us to repair more than was needed."
— June H
"Great company to use. I have already referred them to several people."
— Bradley, New River, AZ
NEED YOUR UNDERLAYMENT CHECKED?
Honest pricing, quality work, and photos with every job.
