Frequently Asked Questions | Exteriors, Inc. Roofing & Siding in Vancouver, WA
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Frequently Asked Questions

Is a New Roof Cheaper in the Long Run?

Even if only a section of a roof is showing wear, it can be more cost-effective in the long run to consider an entire replacement rather than a partial repair. While replacing only sections of tile or shingles can be a good short-term solution to your problems, it’s best for the structural integrity of the roof to have consistency in the age and quality of your roofing materials.

How Long Will My Roof Last?

The general life expectancy of a roof varies, as with any home improvement project, but most high-quality roofing shingles can be expected to last for about 20 years before failing or otherwise needing to be replaced. Areas with high wind speeds, heavy rainfall, and extreme temperatures can expect that lifespan to be shorter. Having spare shingles on-hand in the event of strong winds is a good idea and will provide you with a good opportunity to get up on your roof and assess its overall quality on a regular basis.

Should I Roof-Over or Start Over?

Two-layer shingles provide homeowners another layer of protection, but that also means you can’t place any additional roofing material over the top, per The International Residential Code (R907.3). The added weight of another layer of shingles can have an adverse effect on the structure of a home, with nearly two tons of additional pressure spread across a 1,500 square foot roof.

Starting over with a new layer of shingles has dual benefits, the first being the opportunity to visually inspect the quality of your wood that makes up your roof deck. You’re able to check for roof rot and any weak or failed boards. From there, you should be able to replace sections before reapplying roofing materials. The second being a fresh layer of protection between the roof deck and the outside world, with any previous gaps or weak areas freshly repaired and ready to face the elements.

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