Table of ContentsHow To Roof A House Diy As A Family HandymanHow To Install Roof ShinglesTear-off Vs. Re-roofReroofing Vs Roof Replacement: What's Better?

Building companies do not always use the greatest quality products, so if you purchased an old home, a roofing replacement is a great opportunity to update. Prior to work starts, your roofing professional can help you choose the ideal materials for your roofing system. You might wish to change from OSB (oriented strand board) to CDX plywood decking or utilize an artificial roofing underlayment rather of felt, depending on which is finest for your roof's structure and your climate conditions.

Throughout a tearoff, your roofing professional will have the possibility to thoroughly analyze all parts of your roofing system and make repair work to stop any establishing problems prior to they trigger serious damage. A new, appropriately installed shingle roofing can last 20 to 30 years, indicating it could possibly last longer than an overlay by a decade or more.

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This makes a tearoff a clever choice if you're planning to offer within the next couple of years. Any increase in the appraised worth of your house depends on the condition of your existing roofing system. You'll see a higher boost by replacing a deteriorating, dripping roofing than by changing a roofing system with only cosmetic damage.

Install Asphalt Shingles Over Existing Asphalt Shingles

It takes a lot more labor to entirely get rid of all the existing roofing material and then change all the layers got rid of. The old roof likewise needs to be gotten rid of effectively, which includes to the expense. cherokee4/ Adobe Stock With this quicker, less expensive option, brand-new shingles are installed on top of the existing shingles.

Tear-off Vs. Re-roof

Due to the fact that there's a lot less labor involved in simply setting up new shingles over old ones, an overlay Tucson roof repair - DC Roofing of Arizona will cost you less than a tearout. Your roofing professional won't need to lease a dumpster and handle particles disposal guidelines, so you'll save money on costs there, too. If you're planning on totally changing your roof within the next 5 to 10 years, an overlay is an useful method to take pleasure in the look of a new roofing in the meantime.

An overlay can be completed days earlier than a tearoff. That's less time you'll require to spend out of the home, saving you cash and tension. Compared to a complete roofing system replacement, there's a lot less that can fail throughout an overlay task. There's no threat of an unexpected storm interfering with the dry-in procedure, no falling debris that might harm your deck or your vehicle, and no huge dumpsters that might damage your landscaping.

The issue is that without eliminating the shingles, your roofing contractor can't effectively take a look at the roofing system to find out what condition it's in. An experienced roofer might still be able to area indications of covert damage or make a good guess based upon your roofing system's age, but you're depending on luck at that point.

Two Layers Is Too Many

To make matters worse, a roofing system with 2 layers of shingles holds in more heat, which accelerates deterioration. Usually, an overlay lasts around 16 years. That stated, for many shingles, the guarantee stands for the exact same length of time whether the shingles were utilized in an overlay or a tearoff.

Can You Lay New Roofing Over Existing Shingles?

If your house is older or just rather structurally unsound, an overlay might not be a viable alternative. Chances are your old shingles have actually suffered a reasonable amount of wear that's left a few of them torn, curling, or uneven. Those harmed shingles supply a low quality base for brand-new shingles, so your brand-new roof might end up visibly flawed no matter how knowledgeable your roofer.

If you're dissatisfied with the overlay, you might end up paying for a tearout to have the entire thing redone prior to you prepared. Another layer of shingles adds another layer of intricacy to your roofing. This makes it more difficult to find the origin of any issues that develop. If a leakage types, the water will move through both layers of shingles, changing instructions in a way that conceals the source.

For the most part, unless you make certain your existing roof remains in excellent condition, a tearoff is the better choice. The lower expense may make an overlay noise tempting, however if it leaves damage remaining under the brand-new shingles, it puts your entire house at danger for moisture issues.

The short response is yes, you can lay brand-new roof shingles over the old ones. Let's take an appearance at why some property owners go this route and then we'll consider a few reasons that we don't suggest it. However before we get begun, something must be clear: adding brand-new roof over old (often called a "roofing system over or re-cover") is possible just with asphalt shingles (likewise called "structure shingles").

Can You Put New Shingles On Top Of Old Ones?

Also, the old roof needs to remain in pretty great shape. Including additional layers does not make a new roofing system any more waterproof, on the contrary, it frequently develops its own problems. The factor some house owners select to do it is to save time and cash. By keeping the old shingles on, they avoid the unpleasant and labor-intensive tear-off step and they will save some money on the roofing task.

Getting rid of the tear-off and disposal can easily save $1,000 to $2,000 depending upon the size of your roofing, but you're truly simply delaying the cost: when it's time to replace the roof again and you have no option however to remove the existing shingles (2 layers is the maximum allowed many areas), you'll have to pay extra for the two-layer tear-off and disposal.

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