DIY Builds
DIY Builds
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Can I add a second layer of shingles to my roof? The short answer is yes, you can lay new roof shingles over the old ones. Let's take a look at why some homeowners go this route and then we'll consider a few reasons why we don't recommend it.
If the shed is already clad with timber, install a breathable membrane fitted against the inside of the wall running over the frame. Ensure that...
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Use a combination of different heavy soundproofing materials (the law of diminishing returns if you simply use more of the same) Attach a...
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The short answer is yes, you can lay new roof shingles over the old ones. Let’s take a look at why some homeowners go this route and then we’ll consider a few reasons why we don’t recommend it. But before we get started, one thing must be clear: adding new roofing over old (sometimes called a “roof over or re-cover”) is possible only with asphalt shingles (also called “composition shingles”). You can’t do it with wood or metal, for example, and you should never mix materials, such as laying asphalt shingles over cedar shakes. Also, the old roofing has to be in pretty good shape.
When you want to increase the traction on your sloped surfaces, an excellent solution is anti-slip tape for ramps. This type of adhesive safety...
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Outbuilding. The cost to run electricity to detached outbuildings is between $2 and $5 per square foot, plus the cost of running electrical cable...
Read More »Asphalt shingles are meant to be installed over a plywood deck. When adding a second layer of shingles, the bumps or imperfections from the old roof will transfer to the new layer. Your roof will not look as good as when you do a full tear-off. Shingles add weight to your roof. Most likely, 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 doubles the weight of the roofing, so you must make sure your roof structure can handle the extra load. That’s also why building codes usually limit roof overs to no more than two layers. On some houses, the extra weight of multiple layer causes the roof decking to sag between the rafters or trusses. Most likely, 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 doubles the weight of the roofing, so you must make sure your roof structure can handle the extra load. That’s also why building codes usually limit roof overs to no more than two layers. On some houses, the extra weight of multiple layer causes the roof decking to sag between the rafters or trusses. No visual inspection of roof deck. In order to thoroughly inspect the roof decking and address any potential issues with it, you need to remove the existing shingles. In order to thoroughly inspect the roof decking and address any potential issues with it, you need to remove the existing shingles. Unable to replace underlayment. The underlayment installed between the roof decking and the shingles is there to prevent water from coming in through the roof deck and into the attic. If the underlayment is old and damaged, it won’t protect your roof deck from the water that gets past the shingles. The underlayment installed between the roof decking and the shingles is there to prevent water from coming in through the roof deck and into the attic. If the underlayment is old and damaged, it won’t protect your roof deck from the water that gets past the shingles. Impact on warranty. Make sure you check with the shingle manufacturer regarding all warranty issues and installation requirements before adding a second layer.
We recommend using paving slabs, tarmac or concrete. A solid concrete base is more permanent and provides an excellent base for a metal shed....
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A ridge vent is indeed necessary on a shed, especially if you live in a hot climate. It works to pull in cooler air from the soffits while venting...
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Make sure you check with the shingle manufacturer regarding all warranty issues and installation requirements before adding a second layer. Potential red flag for buyers. For many homeowners who are planning to sell their house in the near future, adding a second layer of shingles might sound like a good idea: why pay for a tear-off if you can just skip it? Of course, it’ll be the new owners who are stuck with the extra expense of a two-layer tear-off down the road, along with any problems arising from having multiple layers of shingles. Because of this, home inspectors often warn the buyers of potential problems associated with roofs with multiple layers. As you can see, even if you’re selling your house, adding additional layers is not advantageous as it may discourage potential buyers. In conclusion, Portland Quality Roofing Inc recommends removing all existing roofing material before installing your new roof. The temporary savings are just not enough considering the risks associated with re-covers. If you would like to know or want to schedule a free consultation, please submit your information here.
Is it cheaper to build or buy a house? As a rule of thumb, it's cheaper to buy a house than to build one. Building a new home costs $34,000 more,...
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Wall Shelves Entryway bench / shoe rack / shoe storage / organizer / custom bench / farmhouse bench / mudroom bench. Entryway Table. Modern Black...
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Start with positioning the summerhouse in a suitable position to get plenty of sunlight through the windows to create the feeling of warmth....
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You can paint a lot more surfaces than you can stain. That's especially true with a good coat of primer on it first. Paint often comes in a wider...
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