
Flat roofs are a common choice for commercial buildings due to their sleek appearance and ease of installation. However, over time, even the best-maintained flat roofs can deteriorate, leading to the need for a replacement. Knowing when and how to replace a flat roof is essential for maintaining your property’s structural integrity and avoiding costly damage. If your local building needs a flat roof replacement call Empire Contractors in Plainwell, MI at (231) 861-7221.
When to Replace a Flat Roof
Flat roofs typically last between 10 to 30 years, depending on the material used—such as modified bitumen, built-up roofing (BUR), or single-ply membranes like TPO, EPDM, or PVC. Common signs that indicate it is time for a replacement include persistent leaks, large areas of pooling water, extensive cracking or blistering, and visible sagging. If repairs have become frequent and expensive, a full replacement may be more cost-effective overall.
Replacement Process
The flat roof replacement process begins with a thorough inspection to assess the extent of damage and determine the best course of action. Next, the old roofing material is removed, which may reveal underlying damage to the roof deck. If necessary, repairs or replacements are made to the deck before installing new insulation and waterproof layers. The new roofing material is then installed according to the building’s needs and climate conditions.
Material Options

Choosing the right roofing material is a crucial part of the replacement process, and the best choice depends on your building’s needs, location, and budget.
TPO and PVC are popular single-ply systems known for energy efficiency and durability. Both reflect UV rays to reduce cooling costs, while PVC also offers strong fire and chemical resistance—ideal for restaurants or industrial buildings.
EPDM is a rubber membrane that holds up well in extreme temperatures, especially cold climates. Its flexibility and long lifespan make it a reliable, low-maintenance option.
Built-Up Roofing (BUR) is a traditional system made of multiple layers of asphalt and fabric. It provides excellent protection against water, wear, and heavy foot traffic.
Each material offers distinct advantages, and a qualified contractor can help you choose the best fit for your building.
Cost and Considerations
Flat roof replacement costs can vary significantly based on factors like roof size, material choice, labor rates, and local permitting requirements. Regional climate and building access can also affect pricing, especially if special equipment or additional insulation is needed.
While it may be tempting to go with the lowest bid, it’s essential to hire a licensed, insured, and experienced roofing contractor. Proper installation not only ensures long-term performance but also guarantees compliance with local building codes and manufacturer warranties.
Cutting corners upfront often leads to higher costs down the line—whether through repairs, water damage, or premature failure. A reputable contractor will provide a detailed estimate, walk you through material options, and complete the job safely and efficiently.
Flat Roof Replacement
Flat roof replacement is a significant investment, but one that protects your property from water damage and enhances energy efficiency. Understanding the signs of roof failure, the replacement process, and your material options will help you make informed decisions and ensure the longevity of your new roof. Contact the team at Empire Contractors to manage your flat roof replacement in Plainwell, Michigan at (231) 861-7221.
Commonly Asked Questions (FAQ)
Q: How long will it take to replace my flat roof?
A: Depending on the size and complexity replacing a flat roof can take around 2 to 5 days to complete.
Q: Can I just install a new flat roof on top of the old flat roof?
A: In some cases, yes. If the existing roof is in an acceptable condition, and there are no restrictions to a new flat roof locally, you can install the new roof over the old roof. However, it is considered best practice to do a complete tear-off of the old roof, this way we can inspect the deck underneath.
Q: What type of flat roofing lasts the longest?
A: EPDM or PVC roofs which can last over 25–30 years (with proper maintenance) are considered the most durable option.
Q: Are flat roofs more prone to leaking?
A: Flat roofs are more susceptible to standing water, which would result in leaks. Preventative maintenance in the roof and proper drainage systems are great ways to limit leaks from occurring.
Q: Is my flat roof replacement covered by insurance?
A: It will depend on what caused the damage. Typically, if it has occurred due to a covered event (storm, fire, etc.) then it may be covered. Otherwise, if the damage is determined due to age it will not be covered.