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This will depend on your existing roof to some degree, but it’s common to raise a roof 4 to 8 feet. The exact amount you can raise is subject to the existing structure. For most homes with average roof slopes—20 to 45 degrees—you can raise the roof around 5 feet.

The warranty for algae-resistant shingles varies by manufacturer, but the industry standard is 25 years for overall shingle durability and lifespan and between 10 and 15 years for algae resistance. Some products come with longer warranties for discoloration of up to 30 years. Check warranty coverage for the shingle and algae protection before deciding on a roofing product.

The lifespan of asphalt shingles is typically between 15 and 30 years, depending on the type of shingle and other factors. Standard 3-tab shingles have the shortest lifespan, around 10 to 15 years. Architectural shingles last longer, averaging 20 to 25 years. Luxury or designer asphalt shingles are the most durable, with a lifespan of 40 years or more. Climate, installation quality, and regular maintenance also play a significant role in how long your shingles will last. Signs that they need replacement include granule loss, bald spots, and roof leaks.

Yes, you should seal and cap an unused chimney to protect it from damage. Sealing the structure helps prevent moisture damage, which can lead to issues like cracks, spalling, efflorescence, and damaged mortar joints. Capping the chimney is also crucial to prevent blockages, damage from invasive critters, and downdrafts, while still allowing for proper air ventilation to manage moisture. For the best results, consult a chimney professional to select the right type of chimney or flue cap for your home. It's also wise to continue with annual chimney inspections to maintain the structure's integrity.