installing a second layer of shingles on roof

How to Put on a Second Layer of Shingles | Hunker

Sep 04, 2018· How to Put on a Second Layer of Shingles Evaluate the Job. Examine the Existing Roof. Make Repairs Before Reroofing. Install the Second Layer. Apply Roof Cap Shingles.

Author: Timothy Burns

Install a second layer of roofing Pritchetts Roofing

To install a second layer of asphalt shingle roofing, a special technique called “nesting” must be employed. “Nesting” is when you install the tops of the new shingles in line with the bottom of the old shingles. Below is an apartment building we did in Lakewood. You

Roofing Over Existing Shingles | Better Homes & Gardens

Total Time: 24 hrs

Should You Layer Shingles on Your Roof? HomeAdvisor.com

Common Problems with Layering Shingles

Can I Install a New Shingle Roof Over My Existing Roof?

Sep 16, 2014· Why Installing New Shingles over Old Shingles Can Be Good. Manufacturers will still warranty the roof for the same amount of time as a re-roof, as long as it’s done by a qualified installer. Can serve as added protection from storms. Assuming your old roof is in good shape, the additional layer can serve as added protection in case a top shingle gets blown off in a storm.

Author: Lyons Roofing

Pros and Cons of Layering Roof Shingles | Pacific West Roofing

Also, your roof was more than likely designed for just one layer of shingles. Adding a second layer, especially with high quality composite shingles, can be very heavy, adding 350-450 extra pounds per square. When snow or rain falls, this weighs down the shingles even more and adds a heavy burden to your roof and the overall home structure.

Install a second layer of roofing Pritchetts Roofing

To install a second layer of asphalt shingle roofing, a special technique called “nesting” must be employed. “Nesting” is when you install the tops of the new shingles in line with the bottom of the old shingles. Below is an apartment building we did in Lakewood. You

Roofing Over Existing Shingles | Better Homes & Gardens

Some roofers install a layer of waterproof shingle underlayment WSU over the existing shingles at the eave end, as would be done for a roof laid on bare sheathing.

Should You Layer Shingles on Your Roof? HomeAdvisor.com

It isn’t uncommon to layer a second roof right over the first and then tear everything off before you put a third layer down. Building codes and most municipalities will usually allow you to overlay a second though never a third layer of asphalt shingles over an existing shingled roof.

Pros and Cons of Adding a Second Layer of Shingles

Jul 31, 2018· It can save you thousands of dollars, because you won’t have to waste time and money to tear off the old layer before installing the new one. Reasons Why You Should Not Add A Second Layer Of Shingles It Will Shorten The Lifespan Of Your Roof. The second layer of shingles will trap heat, which can result in the decomposition of both roof layers. This will force you to replace your roof earlier than

Can I Install a New Shingle Roof Over My Existing Roof?

Why Installing New Shingles over Old Shingles Can Be Good. Manufacturers will still warranty the roof for the same amount of time as a re-roof, as long as it’s done by a qualified installer. Can serve as added protection from storms. Assuming your old roof is in good shape, the additional layer can serve as added protection in case a top shingle gets blown off in a storm.

Installing Shingles Over Old Shingles: 7 Tips

Installing Shingles Over Old Shingles: 7 Tips Step 1 — Seek Professional Advice. Contact your local government office to inquire about local codes... Step 2 — Inspect the Roof. You will need a ladder to climb up to your roof. Step 3 — Cover the Old Shingles. Install a layer of roofing felt over...

Pros and Cons of Layering Roof Shingles | Pacific West Roofing

Also, your roof was more than likely designed for just one layer of shingles. Adding a second layer, especially with high quality composite shingles, can be very heavy, adding 350-450 extra pounds per square. When snow or rain falls, this weighs down the shingles even more and adds a heavy burden to your roof and the overall home structure.

Pros and Cons of a New Roof Vs. Overlay | Angie's List

The second layer is also more difficult to install properly compared to new shingles. Flashing around roof penetrations and sidewalls can be compromised. Plus, depending upon the size of your roof, you’ve added multiple tons of weight, which could pose a big problem if there is significant snow accumulation. If there are any pros to overlaying a roof, it’s saving a little bit of money.

Can You Lay New Roof Shingles Over Old? Networx

Chances are, your roof structure was designed for a dead load of one layer of shingles, plus extra for snow and a safety margin. Installing new roof shingles over old effectively doubles the weight of the roofing, so you have to make sure your roof structure can handle the extra load.

How to Install Asphalt Shingles: 15 Steps with Pictures

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Jul 22, 2019· To install asphalt shingles, start by installing underlayment and new flashing on the roof. Once you've done that, cut your shingles to size if they're not already. Then, begin nailing the shingles to the roof, working in

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Lengths of Roofing Nails to Use | Hunker

For dimensional shingles being installed over a layer of existing dimensional shingles you should always use a 1 1/2-inch roofing nail. Nail Information According to HomeDoctor.net, a roofing nail has an diamond-shaped sharp tip to help it nail through decking without splitting it.

How to Install a Roof Over an Existing Roof | Home Guides

Jul 30, 2015· If you already have multiple layers of shingles or signs of damage to your roof supports, you should avoid a layover.... Use 1.5- or 1.75-inch roofing nails. Your second row of shingles

Installing A Second Layer marylandshingle.com

Installing a second layer of shingles over an existing layer of shingles may seem like a way to save money but we believe this method of re-roofing can have some unexpected pitfalls. Layovers as they are called in the industry involve nesting the new shingles up against the old existing roofing on your home.

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