Q: Do I have to remove old wallpaper before applying new wallpaper?

• <div><p>No, you don&rsquo;t always have to remove old wallpaper before applying a new layer. However, you should pull off the existing wallpaper if it&rsquo;s cracked, peeling, or in poor condition. We&rsquo;d also recommend against <a href="https://www.angi.com/articles/laying-wallpaper-over-wallpaper.htm">putting wallpaper over</a> textured or dark-colored wallpaper because the old layer may be visible through the new one. In addition, if you try to hang new wallpaper over vinyl-coated wallpaper, the adhesive might not stick properly. </p></div>

Q: How long does wallpaper last?

• <div><p>Wallpaper lasts an average of around <b>15 years</b>, but there is some variance. The type of wallpaper matters, as vinyl wallpaper tends to last the longest&mdash;sometimes 20 years or more&mdash;while a <a href="https://www.angi.com/articles/peel-and-stick-vs-traditional-wallpaper.htm">peel-and-stick wallpaper</a>, which is the easiest to install for DIYers, will usually only last for around five years. Exposure to high humidity, smoke, and UV rays from sunlight can also limit the lifespan of your wallpaper, as can heavy traffic in the installation area.</p></div>

Question 1

What are some common mistakes when finishing basement walls?

Accepted Answer

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Common mistakes when finishing basement walls include neglecting proper insulation, insufficient moisture management, and poor ventilation. Not addressing these issues can lead to mold growth, water damage, and discomfort. Additionally, inadequate planning, improper framing, and rushing the project can result in subpar outcomes.

It's essential to follow best practices, seek professional guidance if needed, and prioritize thoroughness and attention to detail.

Question 2

Do I have to remove old wallpaper before applying new wallpaper?

Accepted Answer

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No, you don’t always have to remove old wallpaper before applying a new layer. However, you should pull off the existing wallpaper if it’s cracked, peeling, or in poor condition. We’d also recommend against putting wallpaper over textured or dark-colored wallpaper because the old layer may be visible through the new one. In addition, if you try to hang new wallpaper over vinyl-coated wallpaper, the adhesive might not stick properly.

Question 3

What should I consider when deciding if I should DIY my project?

Accepted Answer

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While some people are confident in their ability to replace concrete by drilling out the broken pieces and replacing them with bagged concrete, it’s possible to run into snags that make hiring a professional worth it. Trying to level concrete slabs can require special equipment, which can be pricey to rent and tough to operate. It's also crucial to contact your town's municipal office to ensure you are allowed to take on the project without a permit.

Question 4

How long does wallpaper last?

Accepted Answer

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Wallpaper lasts an average of around 15 years, but there is some variance. The type of wallpaper matters, as vinyl wallpaper tends to last the longest—sometimes 20 years or more—while a peel-and-stick wallpaper, which is the easiest to install for DIYers, will usually only last for around five years. Exposure to high humidity, smoke, and UV rays from sunlight can also limit the lifespan of your wallpaper, as can heavy traffic in the installation area.

Question 5

Can I hang wallpaper over textured wallpaper?

Accepted Answer

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If you can already see the texture of the existing wallpaper through the layer of paint, then the texture could also come through the new layer of wallpaper. If that’s the aesthetic you want, then proceed. But if you want a smoother surface, you should either strip off the existing paint and wallpaper or hang a layer of liner paper before proceeding.