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Table of ContentsRoof Removal: How To Tear Off Roof ShinglesThe Diy Guide: How To Replace A Shingle Roof YourselfHow To Install Asphalt Roofing ShinglesPros And Cons Of A New Roof Vs. Overlay

Building and construction companies don't always utilize the highest quality products, so if you purchased an old house, a roofing replacement is a great chance to update. Prior to work begins, your roofing professional can help you select the perfect materials for your roofing system. You may wish to change from OSB (oriented strand board) to CDX plywood decking or utilize an artificial roofing system underlayment instead of felt, depending on which is best for your roof's structure and your climate conditions.

During a tearoff, your roofer will have the opportunity to thoroughly examine all parts of your roofing and make repair work to stop any establishing issues before they trigger severe damage. A brand-new, correctly installed shingle roof can last 20 to thirty years, commercial roofing repairs - DC Roofing of Arizona indicating it might potentially outlive an overlay by a decade or more.

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This makes a tearoff a smart choice if you're planning to sell within the next couple of years. Any increase in the evaluated value of your home depends upon the condition of your existing roofing. You'll see a higher boost by replacing a deteriorating, leaking roofing than by replacing a roofing system with just cosmetic damage.

Roof Removal: How To Tear Off Roof Shingles

It takes a lot more labor to entirely remove all the existing roof material and after that replace all the layers got rid of. The old roof also needs to be disposed of properly, which includes to the expense. cherokee4/ Adobe Stock With this quicker, less expensive alternative, brand-new shingles are installed on top of the existing shingles.

Reroofing Over Old Shingles

Due to the fact that there's so much less labor associated with merely setting up brand-new shingles over old ones, an overlay will cost you less than a tearout. Your roofer won't require to lease a dumpster and offer with particles disposal policies, so you'll save money on expenses there, too. If you're planning on totally replacing your roofing system within the next 5 to ten years, an overlay is an useful way to delight in the look of a brand-new roofing system in the meantime.

An overlay can be ended up days quicker than a tearoff. That's less time you'll require to invest out of the house, conserving you money and stress. Compared to a complete roofing replacement, there's a lot less that can go wrong throughout an overlay task. There's no risk of an unexpected storm disrupting the dry-in procedure, no falling particles that could harm your porch or your cars and truck, and no huge dumpsters that might damage your landscaping.

The issue is that without getting rid of the shingles, your roofing contractor can't properly examine the roofing system to discover what condition it remains in. An experienced roofing contractor may still be able to area signs of covert damage or make a good guess based on your roof's age, but you're depending on luck at that point.

Are Two Layers Of Roof Shingles Better Than One?

To make matters worse, a roofing system with two layers of shingles holds in more heat, which accelerates deterioration. Usually, an overlay lasts around 16 years. That stated, for the majority of shingles, the guarantee stands for the same length of time whether the shingles were utilized in an overlay or a tearoff.

Don't Put New Roof Sheathing Over Old

If your house is older or simply rather structurally unsound, an overlay might not be a feasible choice. Possibilities are your old shingles have suffered a reasonable amount of wear that's left a few of them torn, curling, or irregular. Those damaged shingles supply a subpar base for brand-new shingles, so your brand-new roofing might end up noticeably flawed no matter how competent your roofing contractor.

If you're unhappy with the overlay, you could wind up spending for a tearout to have the entire thing redone prior to you planned. Another layer of shingles adds another layer of intricacy to your roofing system. This makes it more difficult to track down the origin of any issues that establish. If a leak kinds, the water will move through both layers of shingles, changing instructions in a manner that conceals the source.

For the most part, unless you make certain your existing roofing system is in excellent condition, a tearoff is the better choice. The lower cost may make an overlay sound appealing, but if it leaves damage sticking around under the new shingles, it puts your whole house at risk for moisture issues.

The brief answer is yes, you can lay brand-new roof shingles over the old ones. Let's take a look at why some homeowners go this path and after that we'll consider a few reasons that we don't suggest it. But prior to we get going, one thing needs to be clear: including brand-new roof over old (often called a "roof over or re-cover") is possible only with asphalt shingles (likewise called "structure shingles").

Remove Roof Shingles Before Installing A Metal Roof?

Also, the old roofing needs to remain in respectable shape. Including extra layers does not make a brand-new roofing anymore water resistant, on the contrary, it often produces its own issues. The reason some house owners choose to do it is to save money and time. By keeping the old shingles on, they skip the messy and labor-intensive tear-off step and they will save some cash on the roofing system job.

Eliminating the tear-off and disposal can easily save $1,000 to $2,000 depending upon the size of your roofing, but you're really just postponing the expense: when it's time to change the roofing system again and you have no choice however to get rid of the existing shingles (two layers is the maximum allowed in most areas), you'll have to pay additional for the two-layer tear-off and disposal.

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DC Roofing of Arizona

Tucson, AZ

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https://www.dcroofingarizona.com/

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The following list includes some reasons not to do a roof over along with some things to have a look at if you're seriously thinking about adding a 2nd layer of shingles. Asphalt shingles are implied to be set up over a plywood deck. When including a second layer of shingles, the bumps or imperfections from the old roofing will move to the brand-new layer.