Flat Roof Repair in Janesville, WI

When it comes to flat roof repair, having a specialized team with deep expertise in low-slope roofing systems is absolutely critical for protecting your property investment. Janesville Superior Roofing delivers comprehensive repair services that address leaks, membrane deterioration, structural damage, and drainage issues with precision and efficiency. Our expert flat roof repair solutions restore your roof's integrity and weather resistance while preventing the extensive water damage and structural compromises that can result in thousands of dollars in emergency repairs.


We recognize that flat roofs present distinct challenges including ponding water, thermal expansion stress, and accelerated wear from UV exposure that require specialized knowledge and materials. Our certified technicians utilize advanced flat roof systems and proven application techniques specifically engineered for low-slope installations, ensuring repairs that withstand harsh weather conditions and deliver long-lasting performance.


With our extensive experience in commercial and residential flat roofing systems, combined with meticulous attention to detail and commitment to quality craftsmanship, you can confidently rely on us to restore your flat roof's functionality and protection. We approach every repair project with the precision and care your property deserves.

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Our Flat Roof Repair Services

We provide detailed services designed to fix and protect flat roofs. Our work focuses on accurate problem finding, trusted material replacement, and timely repairs when you need them most.

Comprehensive Leak Detection

We start by inspecting your entire flat roof to find leaks or weak spots. Using special tools, we check areas like seams, flashings, and drainage points where water can enter.


Our team locates hidden leaks early to reduce damage. After finding the problem spots, we give you a clear report with images and a plan for repair.

Membrane Replacement Solutions

Flat roofs often use membranes to protect buildings from water. When these membranes get old or damaged, we replace them with new, durable materials.


We select membranes based on your roof type and needs. Our skilled crew removes the old membrane carefully, then installs the new one to create a strong, waterproof barrier.

Emergency Roof Repairs



Storms or sudden damage can hurt your flat roof anytime. We provide fast emergency repairs to prevent leaks and further harm.


Our team responds quickly, securing damaged sections and patching holes. We work efficiently to keep your roof safe until permanent fixes can be made.

Types of Flat Roofs We Service

We handle a variety of flat roof types, each with unique materials and repair needs. Understanding the specific roof system helps us provide the right service to protect your building.

EPDM Roofing Systems

EPDM stands for Ethylene Propylene Diene Monomer, a type of rubber roofing. It is popular for its durability and resistance to weather and UV rays. We check for tears, punctures, and seams that may have separated. Our repair work focuses on restoring the rubber’s sealing ability to prevent leaks.


This system is flexible and can last 20-30 years with proper care. We use patches and adhesives that match the original material to maintain the roof’s integrity. EPDM is often used on commercial buildings and some residential homes because it handles temperature changes well.

Modified Bitumen Roofs

Modified bitumen roofs consist of asphalt combined with modifiers to improve flexibility and strength. This roof type often has several layers applied with hot tar or cold adhesives. We focus on fixing cracks, blisters, and split seams that can allow water inside.


Repairs typically involve heating the damaged area or applying new layers of bitumen roll sheets. Modified bitumen is known for good waterproofing and can last 15-20 years. We ensure all layers bond properly after repair to extend the roof’s lifespan.

Built-Up Roofing

Built-up roofing (BUR) is made from multiple layers of bitumen and reinforcing fabrics. It is finished with gravel or a reflective coating for extra protection. We inspect for alligatored surfaces, cracked layers, and patch damage.


Repairs include replacing damaged felt layers and sealing with bitumen. BUR roofs are heavy but provide strong resistance to water and foot traffic. We work to restore the roofing system without disturbing the layers that are still intact to preserve its strength and durability.

Common Flat Roof Problems We Address

We often see flat roofs with water pooling issues. Because these roofs don’t slope much, water can collect and cause leaks or damage over time. We fix drainage problems to stop water from sitting on the roof.


Another common problem is blistering and cracking in the roofing material. This happens due to temperature changes and sun exposure. We repair or replace the damaged sections to protect the roof’s surface.


Leaks around edges and seams are frequent problems on flat roofs. These areas are vulnerable because they can loosen or shift. We carefully inspect and seal these spots to prevent water from entering the building.


Punctures and tears may occur from foot traffic, falling debris, or weather events. These holes can let moisture inside, worsening the damage. Our team patches and waterproofs these areas to keep the roof secure.


Lastly, poor installation or aging materials can cause early roof failure. We evaluate the roof’s condition and recommend repairs or replacements to extend its life.

Frequently Asked Questions About Flat Roof Repair


  • What types of flat roof repair services do you offer?

    We repair leaks, cracks, blisters, and membrane damage. We also offer patching, coating, and complete section replacements on flat roofs.

  • How do you ensure the durability of your flat roof repairs?

    We use high-quality materials designed for flat roofs. Our team follows strict installation standards and inspects work to prevent future issues.

  • What is the warranty coverage for flat roof repairs?

    Our repairs come with a warranty that covers both materials and workmanship. The length and details depend on the service performed.

  • How do you handle unexpected complications during a flat roof repair job?

    We communicate problems immediately and provide options. Our priority is to fix issues efficiently while staying within your budget.

  • What are the cost factors involved in a flat roof repair?

    Costs depend on roof size, damage extent, materials needed, and repair type. We offer clear estimates before starting any work.