Modified Bitumen Roofing in San Diego

San Diego County Roofing & Solar is a top service provider offering high-quality roofing solutions. We are roofing specialists with experience in a wide range of roofing systems. Whether you are looking for a slanted or flat roof, we are the team to call. We have been offering modified bitumen roofing in San Diego for several years now. Our roofing professionals understand the need to do a good job and will go the extra mile to ensure 100% customer satisfaction. Our company uses cutting-edge technology to ensure every project is unique and successful. This is one of the factors that make our services trustworthy and reliable. Whether working on commercial or residential buildings, our team will not leave until you are completely satisfied. Contact us today and lets us handle those roofing issues.

Call Us

What is Modified Bitumen Roofing?

Modified bitumen roofing is among the most common options for commercial roofs. The system has been used as a standard roofing asphalt solution since the 1970s. Modified bitumen was developed to offer maximum protection with the least maintenance needs. Today, a modified bitumen roof represents the highest-end roofing solution. Modified bitumen roofing systems come in two main categories; atactic polypropylene (APP) and styrene-butadiene styrene (SBS).

The SBB is a more cost-effective roofing system. It is heat welded, or torch applied to look like plastic. On the other hand, the SBS roof system offers more impact resistance and temperature tolerance. It’s installed using a hot mopping method that uses asphalt or a cold process adhesive, ending in a rubber-like surface. Both systems are great for commercial roofing. They are both quite resistant to impact and weather fluctuations. Because of its complex nature, you will need the best contractors to have it successfully installed. This roof will make your house look beautiful, but only if the contractor knows what they are doing.

We provide essential maintenance to all customers!


Let’s get started on your roofing and solar project!

To get started with a free estimate and consultation, fill out the form below.

A Brief History

The name modified bitumen comes from the “modifiers” added to the base material, which is a bitumen. Thermal catalysts are used to make it stronger and more adhesive. It also makes installation possible. The modifiers add durability to the benefits of these roofs. Common asphalt is strengthened more using these modified, also improving the general quality of the material. Modified bitumen membrane works just like other flat roofing options in terms of insulation. However, it’s more effective. If proper construction methods are followed, you are looking at the most energy-efficient roofing solution.

We’re Setting the Standard for Roofing & Solar Customer Service

KC Carlson
KC Carlson
These guys were great they worked with me every step of the way explained what they were doing and if any changes were needed to be made they verified before they made them and they were just all around nice guys I would highly recommend this company to anybody who needs to have a roof replaced. They were fast and efficient as well and my house looks great with the new roof on it thank you very much San Diego County Roofing
Ian E
Ian E
We couldn't be happier with the job that San Diego County Roofing just did at our house. We needed to have the shingle roof on our house replaced. We initially got several bids. Dylan did the bid for this company. The bids from the different companies all came in at nearly identical prices, and we were impressed that San Diego County Roofing seemed like a serious company who would do a good job. Dylan was great: he was very thorough, and he seemed honest (and never tried to get me to buy anything I didn't need). He was also very professional and easy to reach. When it came time for the actual job, Edgar was the foreman. He was excellent: professional and attentive, and a pleasure to work with. He made clear that a top priority was to make sure that we were satisfied with all aspects of the job. The team at our house worked quickly, and the new roof looks great. In summary, Dylan and Edgar were both exceptional, and I would recommend this company to anyone looking to have similar work done.
Kenneth Robison
Kenneth Robison
I had a leak around my skylight. I got several quotes and all of them were pretty much the same, and very expensive solutions. I then called SDCR and talked to Troy. Troy came to my home and spent quite some time surveying the roof and felt he knew what the problem was. Troy gave me a couple of options. They found the problem repaired it and I saved a lot of money. Cheers!!!
James Egerdahl
James Egerdahl
Very happy with roofing job. Looks outstanding. Very satisfied with answers to all my questions.
Richard Chin
Richard Chin
We got 4 estimates to "Lift and Relay" the tiles on our roof. One roofer said our concrete tiles were near the end of their useful life, while all the other roofers contradicted that. Of the estimates Troy's (the co-owner) was the best. He updated me throughout the process, and when he didn't, he apologized. Not a big deal, they were minor items. The crew arrived on time, were polite and professional. One thing we really liked is that they cleaned up everyday when they were done. We really appreciated this, since we have 3 dogs who like to wander around in our backyard. They answered all my questions, finished as scheduled and repainted the replaced wood. The amount of wood that needed replacement was minimal, and they could have charged a lot more, and we wouldn't have known if it was needed or not. Overall, I'd say they are an honest, reliable roofing company. I wanted to wait until after it rained to see if there were any obvious roof problems before submitting this review, well it has rained, and to the untrained eye, everything looks great. I wouldn't hesitate to use San Diego County Roofing again, and I highly recommend them. Thanks Troy and Edgar for a job well done.
Tim Marshall
Tim Marshall
Not knowing a lot about roofing, I did a lot of research. There are many stories about being taken advantage of, but it is still difficult to be sure. I came down to four companies from whom to get estimates, based on their websites, reviews, and telephone discussions. We had a tile roof that was 30 years old. I couldn't see how tile could deteriorate much in 100 years, let alone 30. I learned from the research, however, that it wasn't the tile, but what lay beneath. I gave the four my requirements: proven technology, no leaks, met code, able to accommodate a solar system, and work with the solar installation team. Of the four, one came back with an estimate to replace everything, including the tile (I didn't believe I needed to replace that, and it cost about $2,000 more). The others came back with a "lift and re-lay," replace the underlayment, and other work as needed. One proposed a new technology. Since I am trained in some of the relevant technologies, I called the manufacturer and asked some very technical questions, which they answered honestly (to their credit) – I ended up not choosing that bidder. Of the other two, one just offered a cursory estimate. He was late for his appointment – and, after two hours, called to reschedule. Nearing the time of his appointment again, he called and said that because of rain he did not feel safe getting on the roof. I rejected his bid based on his commitment to keeping schedules, his lack of transparency, and customer engagement. The first to respond was San Diego County Roofing (so, everyone else was compared to them, luckily). Dylon, the estimator, was courteous, paid attention to detail, and answered all my questions fully. He went through the attic to check to see if everything was up to code. Dylon got up on the roof to check for potential problems. One such was our chimney. It turns out the code had changed and he had to add in a small charge for a different flashing to accommodate. I asked about working with a solar company. The solar company wanted to take measurements, mark out the panel installation, and have the roofer install stanchions and their flashing, part way through the roofing project. Dylon said no problem. He said that they would also install more, smaller vents (turned out to be very cheap). Dylon was very knowledgeable, took the time necessary for a good estimate, provided a detailed proposal, and, best of all, listened to my requirements and concerns. The virus pandemic occurred about the time we were going to start. The solar people had asked to postpone for a month. SD County Roofing was able to accommodate that request and was more than happy to coordinate directly with the solar company. During the installation, all the workers on the installation team were friendly, courteous, and very respectful of virus precautions. It went quickly and according to the schedule laid out in the proposal. They lifted the tile, checked for rot on wood sheathing and fascia, installed a sheet metal cricket for the chimney to meet code, and installed new low visibility ember resistant vents. They then paused to allow the solar company to make their measurements and deliver the stanchions and flashing. SD County Roofing then installed the stanchions, flashing, and re-laid the tile roof – with extra-long nails to ensure the solar team did not cause the tiles to move during their installation. The team was fast, efficient, and a pleasure to have around. It has only been a month since the installation, but I will report back should any concerns arise. I highly recommend San Diego County Roofing – they were knowledgeable, transparent, willing to answer questions and provide detailed answers, courteous, and took good virus precautions.
David Gatley
David Gatley
Couldn't be happier with choosing SD county roofing. We got quotes from 4 companies and while this wasn't the cheapest quote, it was by far the most professional and considerate of them all. That led us to select Troy, Edgar and Dylan's company for our historic home's roof. What started as a small inquiry into the state of our roof as I suspected we may have a leak, turned into a massive job completely repairing about 1/3 of our roofing frame. It's never fun to get a quote on a project only to tear off the existing roof and see your sub roof completely rotted and useless....BUT Edgar and Troy (owners of the company) walked us through everything that was wrong and worked out some options for us to fix things the right way while keeping costs manageable. These things were not noticeable without pulling the roof off, so keep that in mind as you embark on this journey. The crews used with very friendly, courteous, and respectful of our property. We had a couple of accidents cause a broken window (not due to negligence, just a crazy piece of wood with a mind of it's own) but the guys helped us get the window fixed without any added cost to us. Great company, great work (the roof looks outstanding), great quality. Trust these guys, they won't rip you off or let you down...which is a serious risk in this industry.


You need the best roofing company to get the most from modified bitumen roofs. These are roofs that require complex approaches like the subzero cooling process. That might make the entire job a bit challenging. If done right, bitumen roofing is the best choice both for commercial and industrial roofs. A well built-up roof promises the following benefits.

Affordable and Energy Efficient

Installing Bitumen is quite easy if the contractor understands what they are doing. Materials like gravel are also easily available. This can significantly reduce the cost of putting up these roofs.

Durable and Reliable

Durability is one of the reasons bitumen roofing is the best choice for many people in San Diego. You won’t be calling a contractor to get the shingles repaired any time soon once installed. And it will serve you for many years.


Unlike standard PVC and TPO, modified bitumen roofs are quite versatile. They will fit right on almost any roof with very minimal difficulty. Most roofing contractors recommend this method because it offers customers an easy option.

High Resistance

It can be relatively expensive when roofing your building initially with modified bitumen. But the highest costs come from using the roof. After years, issues with heat and expensive inspection may require a lot more. That is why you need a roof that is more resistant and durable. Modified Bitumen is certainly such a material.

Get a Free Roofing & Solar Quote

Speak With a Roofing & Solar Expert by calling or emailing

Call Us

Why Choose Us for Modified Bitumen Roofing San Diego?

A modified bitumen roof may be easy to install. It’s its simplicity that appeals to many contraction clients. But that does mean you choose just anyone to do the installation. The last thing you want is having roofing issues just a few years after the job. And that is why you must carefully select a roofing company.

Here are reasons why San Diego County Roofing & Solar is that company:

A Dedicated Team

When looking for a new roof, you need someone who can offer the best advice. While there are many options, not all may be fit for your needs, making it overwhelming. San Diego County Roofing & Solar has a professional team to handle everything for you. Modified bitumen roofing features multiple layers that require a dedicated team to do it successfully. We are that team.

residential and commercial properties


We are experienced enough to know which roofs have better contraction capabilities and which ones don’t. We have been on the roofing market for several years now. That means we can recommend the best materials, giving you the strongest roof.

Customer Focused

Our aim is to ensure every customer is 100% satisfied. And that is why we take every roofing job very seriously. Whether it’s a small repair job or replacing the entire roof, we will give you a deal you won’t resist. And the quality of services we provide is beyond your expectation.

san diego ca

We are Trustworthy

The roof is a crucial part of every building. The last thing you want is dealing with constant repairs because you chose an incompetent service. At San Diego County Roofing & Solar, we put our clients first. We follow professional channels from the time you contact until the job is complete. That is where we build trust.

We Are Local

We are a local roofer with a proper understanding of the local weather and roofing needs. We cannot trust just anyone to evaluate your needs for the best roofing options. And that is what makes us more reliable. We know which materials are the best in San Diego and entire California.

Experts in Different Roofing Styles

Our expertise in different roofing styles forms the foundations of our business. We offer roofing services in comparison to your neighborhood and specific construction needs. Our experts have great experience in a wide range of roofing options, including modified bitumen.

Call us: (855) 732-6868


A: Generally, modified bitumen roofs are not very expensive compared to other options. However, there may be certain factors like adverse weather that may increase your roof replacement cost.

A: Yes. Modified bitumen features fiberglass and other materials that make it a great option. Roofing with it means reliability and durability.

A: Modified bitumen is one of the oldest roofing materials. Most people refer to it as “torch-down roofing. Asphalt and filter ingredients make it look like rubber and resistant to rain and extreme weather. With proper maintenance, the roof can last for 10 to 15 years.

A: When you consider a better material, TPO is relatively better. But if you are on a very restricted budget and need a cheaper option, go for modified bitumen.