成功的住宅金属屋面项目的钥匙

持久的金属屋顶是三种基本要素的产物：quality substrates，，，，superior coating和熟练的安装。所有这三个元素都必须出席，以使房主看到成功的住宅金属屋面项目栩栩如生。在这三个元素中的任何一个上都砍下了拐角，您会承受屋顶不会提供您期望的ROI，质量，性能和路缘式效果的风险。

When shopping for金属屋顶，，，，homeowners must be vigilant to ensure that the metal substrate and the coating on the panels matches their long-term performance expectations. There are a variety of steel substrates and coatings available on the market and the wrong selection could result in a disappointed homeowners and reduced roof service life.

Choosing the best coating for your residential metal roof project

For long-term customer satisfaction and performance, metal roofs with aGalvalume® substrate and PVDF (Kynar 500®) coatinghave proven to长期保留小组的原始美女提供最长的使用寿命。

涂料/油漆系统不仅是每个人都会看到的新金属屋顶的一部分，而且还是整体金属屋面系统的关键部分。对于金属屋顶的寿命（请记住，很容易为40到50年），涂层将暴露于大自然母亲的元素：紫外线射线，酸雨，污垢等。

Over time, these environmental conditions can break down the coating, resulting in what is commonly referred to as panel fade and chalk. Fade and chalk are not pleasing to the eye, and the degree of fade and chalk is directly related to the coating system. The most popular coatings for metal panels are Polyester, Silicone-Modified Polyester (SMP) and Kynar 500® (PVDF). It’s helpful to think of these three paint systems in a Good, Better, Best ranking system.

Kynar 500（PVDF）涂料是长期使用寿命，颜色保留和粉笔耐药性的最佳涂料。选择Kynar 500（PVDF）意味着与硅酮改良的聚酯（SMP）涂层相比，年度持久的“像新的”外观一样，由于褪色和粉笔，它们可能开始降解并看起来年龄衰老。

BothKynar 500 (PVDF) and Silicone Modified Polyester (SMP) panelswere installed on this project in Louisiana. On day one, the colors were an identical shade of dark green. The above photo, taken eight (8) years later, shows fading and chalking of the now lighter SMP panels. Note, no fade or chalking on the darker Kynar 500 (PVDF) panels.

Although a commercial application, the building below dramatically illustrates Kynar 500’s superior performance. This building was built in two phases, nine (9) years apart. Note, no color difference in the two halves of the roof. No Fade! No Chalk!

With examples like these, it’s obvious that Kynar 500® (PVDF) coatings are the “Best” option when long service life, color retention and chalk-resistance are important.

Yet, uninformed homeowners still often select a Silicone-Modified Polyester paint system. Why? It’s often because not every panel manufacturer or contractor offers Kynar 500® paint as one of their standard products. In those cases, installers may feel forced to sell the product they have available to them and oversell it as “just as good” as Kynar 500®.

简单地说，目前没有比Kynar500®更好或更好的油漆系统。为您的住宅屋顶选择Kynar500®（PVDF）意味着与硅胶改装的聚酯（SMP）涂层相比，年度持久的“像新的”外观，它可以在几年后开始降级并看起来老化。金属屋顶是您家的大笔投资。重要的是要了解这些不同类型的油漆系统，进行选择，然后仅与愿意提供您选择的产品的承包商一起工作。

View McElroy University Videos Describing the Material and Coating Options

下载金属屋面性能传单

Choosing the best materials for your residential metal roof project

It’s important for homeowners to have an understanding of the components that make up metal roofing because not all metal panels are created equal. Just like most items you purchase on a daily basis, metal roofing has varying levels of quality and performance.

也许更合适的比较是常规的带状疱疹。如果您已经更换了带状疱疹的屋顶，那么您就会非常了解质量和性能的不同水平。对于金属屋面而言，相同的陈述是正确的：质量和性能根据金属基板和涂料（油漆）系统的质量而变化。

Let’s dig a little deeper into the steel substrate materials topic. Depending on your needs, the type of substrate you choose is one of the most important items to consider. The most popular steel substrates in the metal roofing industry are Galvanized and Galvalume®. Galvanized substrates are coated in zinc, while Galvalume® substrates are coated with an alloy of zinc plus aluminum.

Galvalume®和Galvanized都是金属屋面面板的良好基板。使用镀锌底物，锌的含量越大，对面板腐蚀的保护越大。两个常用的镀锌基板被指定为G100和G60。这些名称与面板表面两侧包含的锌的总量有关。G100在每个平方英尺的面板中含有1.0盎司的锌，而G60底物含有0.6盎司的锌。要考虑的重要事实是，G100底物的保护锌比G60底物多66％。这种差异将与您项目的长期寿命和长期美学有直接的关联。

结果，G60基材根本不适合住宅屋面项目。但是，它们是广泛的。对于未经教育的消费者来说，这是一个简单的错误。对于大多数应用，Galvalume®基材提供了最佳的长期解决方案，并且在该领域已证明其出色的性能。超过五年的测试和现场性能表明，与镀锌面板相比，Galvalume®具有更大的耐腐蚀性。实际上，Galvalume®在建筑行业的性能非常出色，以至于钢厂保证它不受腐蚀引起的破裂或穿孔。对于镀锌基板，根本不存在类似的保证。

在一个测试中，未涂漆Galvalume®和镀锌面板被放置在四种不同类型的室外环境中，包括普通的海洋和农村环境。更加严厉的环境，进行了更好的Galvalume®。经过23年的并排比较，Galvalume®的耐用性是镀锌的两到四倍。

颜色很重要，但避免购买金属屋顶时许多房主犯的错误。确保基板与您的长期性能期望匹配。市场上有很多可用的选择，错误的基材选择可能会导致您的新金属屋顶的失望和寿命较短​​。

In summary, if long-term performance and “like new” appearance are important criteria to you, metal roofs with a Galvalume® substrate and PVDF (Kynar 500®) are your best bet. Don’t be afraid to ask potential contractors what substrate and coating they recommend for your project. It could be a red flag if they don’t know or try to steer you toward lower-quality substrates and coatings.

为您的住宅金属屋顶项目选择最佳承包商

If you’re intrigued by all the benefits that metal roofing offers, the next step is to identify qualified contractors in your area who specialize in metal roofing. As you might guess, contractors that only “dabble” or occasionally install metal roofing often steer homeowners toward shingles because it’s their comfort zone. Do not let their comfort zone push you to accept a shorter-term solution for one of the biggest investments you have, your home.

如果您在寻找具有金属屋顶经验的承包商时遇到了麻烦，则可以查看找到承包商在我们的网站上。只需输入您的邮政编码，，，，adjust the desired distance range, and select “Residential Roofing” from the drop-down menu on the right side. You’ll find a list of installers in your area who have experience with metal roofing projects. Not all of our customers choose to be listed on our website, so pleasecontact us如果您的搜索空白。

These next steps are critical. Before picking up the phone or sending an email to request an estimate, take the time to check out the contractor a bit.

1.询问。向家人和朋友询问他们最近的项目以及他们推荐谁。

2. Review contractor websites.

• Look for things like customer testimonials and types of products offered.
• 如果您可以在基板和油漆系统上找到任何内容，请阅读。
• 如果他们碰巧在其网站上列出了任何供应商，请查看这些网站。
• 如果他们的博客,花时间去阅读一些博客,and decide if they seem like a reputable company you’d like to work with.
• 查看网站上是否有业主/团队成员的名称。

3. Search the internet.

• 在上网时，请进行一些一般调查工作。
• In most cases, it’s as simple as doing an internet search for “reviews for XYZ Roofing in city, state” and hitting go.
• You may find plenty of positive things, which is great, but also be on the lookout for negative experiences reported to agencies like the Better Business Bureau.
• 阅读评论和评分。

After you’ve done your research and identified your top two or three contenders, it’s finally time to make the call. When you reach out, ask about their experience, product recommendations and process to get a metal roofing estimate.

While you’re certainly not limited, below are a few questions to help as you begin your conversations with contractors:

• How long have you been installing residential metal roofing?
• 您完成了多少个不同的金属屋面项目？
• What different types of systems have you used?
• 您喜欢哪个系统，为什么？
• 您使用什么底物？
• 您将哪种油漆系统用于住宅金属屋顶项目，为什么？
• What training has your crew had for residential metal roofing?
• What warranty can I expect on both the product and the installation?
• If I have a warranty claim, does it include labor or just product replacement
• Could you give me a list of references where you’ve completed residential metal roofing?

Buying a new roof for your home is a huge investment and one that has long-term implications for your home's value, ongoing maintenance costs, risk of damage due to weather, and the enjoyment of your beautiful home. Reduce your risk and increase your chances of long-term success by choosing the right materials, with the right coatings, installed by the right contractor.

* Article adapted from our guide to residential metal roofing eBook. Get the whole story by clicking the graphic below.