Ask the Home Expert: Jim Miller Roofing and Sheet Metal, Inc.

What’s the best way to keep my roof in good shape?

To protect your roof and keep it in good shape, make sure you have all your flashing, roof penetrations, and valleys–such as vents, pipes, and chimney–inspected yearly to ensure they are in good working condition. You also need to make sure the gutters are always clean to keep the water flowing. Our materials protect your home as a roof is supposed to, and we have eco-friendly roofing systems for multiple property types. The Weather Stopper Integrated Roofing System provides superior defense from weather, pests, and debris. And because we offer only the best quality materials, customers don’t risk choosing a substandard product.

How do I know when it’s the right time to replace or repair my roof?

Most shingle roofs last approximately 20-25 years. The lifespan depends on what type of shingle was installed and if the old roofing was removed down to the original wood decking prior to installation. When you notice your shingles start to curl or become discolored, and there are shingle granules at the bottom of your downspouts, it may be time to consider repairs. We believe that the client knows best, and we will provide expert advice to help you ensure your roof system meets your needs. And we help you to find an easy and affordable payment plan that is right for your budget.

Why are there dark stains on my roof, which is only five to 10 years old?

The cause of the black stains is blue-green algae. This happens in highly wooded areas where there is a lot of moisture and no sunlight. The only thing that can correct this problem is choosing a shingle manufactured with zinc and copper. Most shingle manufacturers only guarantee their shingles against this algae for 10 years, but some offer 15 to 25-year warranties.

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What should I look for and expect to see in a roofing contract?

First and foremost, hire a company with a proven track record that provides workers compensation insurance to its employees. Secondly, make sure they are Certified Installers with the shingle manufacturer. GAF & Certainteed offer extended warranties covering Labor & Mateial for 25 years. This means if the roof leaks due to poor workmanship or defective materials, you are 100% covered by GAF or Certainteed. A roof is a long term investment, and you need to choose wisely. You may get a lower price from a “Pick up Truck Tommy,” but they are unlikely to be around if you have problems after installation.

Make sure you understand the contract’s verbiage. Does it include the removal of shingles? You have to consider things like underlayment and ice and water shield. Is an upfront wood roof replacement clause included? These are key considerations for any roof replacement contract. Although we have completed many very large commercial projects, the heart of our business is on our residential customers. We have a history of trustworthy service, and we never accept deposits for work. The invoice is sent only after completion and when we’ve ensured that the customer is completely satisfied.

How do I know if I can trust my contractor?

You should make sure that your roofer is licensed with the state and your local township. It is also important that the roofer has the proper workers’ comp and liability insurance and is a certified installer of the manufacturers’ products. For instance, the GAF Golden Pledge Limited Warranty can only be given by Certified Master Elite Installers. Our employees are factory-certified by the Certainteed and GAF, ensuring proper installation. We’ve been serving Montgomery, Delaware, and Chester Counties for more than 20 years and are fully bonded and insured, which gives your installation full protection with $5 million of liability coverage. All work carries a full, non-prorated 25-year labor and material guarantee backed by GAF or Certainteed.


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Jim Miller Roofing and Sheet Metal, Inc.
(484) 412-8246 

Serving the western Philadelphia suburbs, Delaware and New Jersey.


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