Well, if you ask an expert like us, we would say that both light and dark colored Asphalt shingles last for a longer life-span, provided they are well taken care of and properly maintained, especially after a storm. The only difference between these two are that the light color shingles help keep the inside temperature lesser during summer than the darker ones. Other than that, there’s no significant difference. Now coming to the reroofing part, both the 26 gauge & 29 gauge roofing material can last well upto 25 years or slightly more, if proper care is taken and maintenance done. In the US, there are many roofing material manufacturers that offer a 20 year warranty, whereas some even go to the extent of offering a lifetime warranty on their products. As a certified and licensed contractor, we at Edwards Home Remodeling help you choose the right kind of roofing material that is a perfect fit for your home and last for generations. Asphalt shingles last for 15-20 years and wooden shingles last for 20-25 years. Here, you can call us at (408) 800-3449 and speak with one of our in-house company experts in residential roofing.
Any certified roofing contractor in Sunnyvale, CA, or in any other city of California would say ‘NO’. This is because a double layer of shingle traps more heat, which in turn damages the roof, the wooden framework and the insulation wool. In fact, it shortens the average life-span of your roof. The moisture and heat trapped in between the two layers result in algae, moss, mold, fungus & mildew formation on the underside of the roof, especially in the framework, thus weakening the structure. Moreover, a second layer can result in extra pressure on the structure of your roof, simply due to the additional weight of the new shingles or Asphalt cedar shakes. Most importantly, having a second layer of Asphalt shingles on your existing roofing material can be really problematic in repairing water leakages. It is difficult to do the patchwork where the leak has happened. Overall, there are more Cons than Pros of installing or having a double roof layer. So, why not contact us and ask for FREE quotes & expert consultation regarding your home roofing project, as we provide unique ideas.