If your roof is starting to look a little worse for wear, you may think it’s best to spend countless hours researching before and after new roof pictures online. Yet, this can be a very time-consuming process and may not get you any closer to getting your dream roof. Therefore, you’re encouraged to contact a local roofer so that you can receive some more professional advice. These workers are well-versed in roof replacement as well as everything to do with the roof replacement, repair, and maintenance process. In turn, this is an imperative resource for those who want to give their entire house a new lease on life and increase its value.
As a result, homeowners now have the perfect chance to renovate their old garage and transform it into something much more attractive. Thus, you’re now free to kick back and relax in your new recreation room or achieve your daily goals in a chic home office. As such, this article will discuss the benefits of replacing a garage roof and a home roof, noting how it can take your whole property to the next level. This piece will also explore how you can receive a free roof repair estimate.
Professional roofers can be your salvation, as they are a qualified team of contractors who can help you install the roof of your dreams. Roofers can help enhance your curb appeal and get a stylish, elegant home with a new roof. Although replacing a garage roof can be complicated, you can do it with the help of professional roofers.
What You Need to Know about Roof Replacement
Roof replacement projects do more than aesthetic changes to your property. You can see from before and after roof replacement photos how safe and sturdy a new roof looks against the past one. Enhance your safety and give your property a new look with a new roof. Moreover, don’t hesitate to review before and after new roof photos from your contractor’s previous work.
The Importance of Professional Roofers
A professional roofer does more than fix and install a new roof. Moreover, they care for your safety and take their knowledge of safety measures and how to install a new roof without compromising your home’s structure. You can get a free roof repair estimate service from most roofing companies by discussing a price and setting up a budget.
Your roof might need improvement. Instead of calling your roofer for the same repairs, take a step further and replace it with something new and dashing. Contact us for more information.
It’s important to look for good roofing companies early on before you ever have a roof-related emergency. This can save you a lot of hassle by ensuring that you know who to call in case a roof-related emergency ever comes up. With good roofers within easy reach for you, it may be hard to end up with major issues such as roof failure. Before you commit working with a particular roofer, ensure that you’re happy with their quality of work as well as their pricing and more.
To do a background check of a roofer with whom you’d like to work, you could ask to see before and after roof images of projects that they’ve worked on in the past. Whether these are garage roof repairs or something else, before and after roof replacement images are a great representation of what you can expect from the expert you hire. This is because various roofing projects may not be too different from each other. If you want to know what to look out for in terms of the roofing work that’s done on your home, you can search online for the roof before-after images to get an idea.
A roof replacement is a major investment in your home. Whether your roof was damaged or is just at the end of its intended lifespan, the average cost to replace the roof on your house is more expensive than many other home projects. You should always use roofing contractors to do the work. Don’t try to do it yourself in order to save money. While you might be able to trim some of the cost from the average price for a roof this way, you could end up doing a poor job. Then you’ll just need to hire someone anyway, potentially paying them more than the average cost to roof a house in order to fix your mistakes. Plus, you’re at risk of getting injured if you work on the roof without experience. Not to mention the fact that a professional will be much more efficient when completing the job.
While the average price of a roof is costly, there are ways to make it manageable. Start planning early. Find the average cost to roof a house like yours and look into your options for roofing companies. Don’t just choose the cheapest one, they might not do the job up to your standards.
If your roof is in bad shape, you need to take action on it right away. If you leave a roof of a house to leak, it’ll cost a lot more problems for your home and your finances. When your roof isn’t doing its job anymore, you need a roof replacement service to replace your home’s roof, look for a solid company that has a lot of experience with roofs in your area. It’s also to confirm that it’s a local company.
There are some companies that will pretend to be local and may even have local business cards made. However, they aren’t able to guarantee the work they do because in reality they are located in another state. When you find a good company to install the new roof, you’ll have a lot of questions. The first will likely be about how much does it cost to replace a roof? The average cost is approximately $8,000.
This average cost is for an average house of average size. There may be an additional charge for a steep roof if you have one that’s especially steep. Getting an affordable roof replacement may require you to get several roofing quotes.
When a roof isn’t keeping all of the water out of the house anymore, it’s probably time to replace it. Getting a company that offers residential roofing services should be done right away. These roofing companies know about applying shingles to a roof and know how to efficiently replace the entire roof. Many of these companies can do it in one day for an average-sized home.
About how much does it cost to replace a roof? It costs an average of $8,000 to get a new roof. This can be less or more depending on the size of the house. It also depends on the type of shingles that you want for your home. Some are more expensive than others, and these will last longer. You may also pay an additional charge for a steep roof because of the complexity of replacing a roof on a steep pitch.
Getting an affordable roof replacement is important for many people. Getting quotes from multiple roofing companies can help you to get the price you want for your new roof. To pay for it, many people take out a second mortgage. You might also take out a home improvement loan to pay the cost of a new roof.
It is important to maintain your roof. Regular roofing repairs can keep your expenses lower, catching problems before they become a crisis. Repairs are generally less expensive than the average cost for new roof on house. So, while you might be tempted to put off repairs in order to save money, you should get them done as soon as possible. That way, you know that your roof is working well. It also helps to expand the lifespan of your roof, giving you time to save up and plan for your new roof.
The average cost for reroofing a house can be extremely expensive. It is something you’ll want to plan ahead. Take some time to figure out what it is that you need. Do you need to know the average cost for new roof and siding to fix your entire exterior? What kinds of materials do you want to use? The average cost for a shingle roof can be cheaper than some other options, but it might not be what fits your home best. Make these decisions before calling a contractor.
When you find yourself in need of expert roofing maintenance and repair sarcodes, working with a licensed local roofer is often your best option. They can offer the insight and guidance you need to take care of your roofing system all year round. Whether you have questions about how to estimate the average cost of new roof per square foot or what all goes into the average cost of new roof small house these are the experts who can walk you through the process and give you all the information you need.
When preparing for a new roof installations you will want to consider pricing and budgeting needs. Estimating the average cost of new shingle roof or a new roof made from metal sheets or tile pieces is a big part of the early planning phases. Your local roofing contractors can ensure you get a fair price for the best quality materials and installation service possible.
Before you start your roof repair or replacement project, be sure you have shopped around and considered the average cost of reroofing a roof like yours in your area. Call your local roofing contractor today if you have questions!
Does your roof need repair? A defective roof is a security risk and affects the general outlook of your home. Therefore, you should check for signs that your roof needs replacement.
The next step is getting a cost estimate from a professional roofer. Do you feel like your roofing quote is overpriced? In this case, it’s essential to do extensive research on the average cost of home roof replacement. A suitable contractor’s charges should be within your budget.
Generally, the average cost of full roof replacement is between $4,900 – $10,900 in Houston. However, the cost varies depending on different factors, such as the size of your roof and the roofing materials. The price breakdown is about 60% for labor and 40% for materials. The cost of tile roofing services will be different from asphalt shingles.
When roofing your home, you should also factor in the garage, which is usually overlooked. If your garage roof is leaking, you should replace it immediately. In this case, it’s imperative that you come up with an accurate estimate of the average cost of garage roof replacement. Keep in mind that the standard roof replacement in Houston costs about $360 – $390 per square foot, depending on variables such as the complexity of work and the type of material you’ll use for the job. Ask the roofing professionals about the average cost of new roof and gutters.
So, how do you know your roof needs replacement? Below are four notable telltale signs. Let’s jump right in.
The average cost of new roof and gutters is very expensive. If you are planning to replace your roof, make sure that you plan everything ahead of time. That way, you won’t have any financial surprises as you go. Look into the average cost of reproofing for your specific type of house. The size and shape of your home will make a difference to your price. For instance, the average cost of a new roof small house will be cheaper than the average cost of a new shingle roof on a larger house. If you’re unsure how to find the average price, talk to a roofing service in your area before you begin the process.
Once you know the average cost of reroofing, you can figure out how you are going to pay for it. Many people finance home renovations through banks or credit unions. Others pay in cash. Whichever one you decide to use, you’ll need to do some work ahead of time to make sure that it works. Replacing your roof is expensive, so make sure that you do everything correctly.
Getting used to roofing issues is common for people who have had to struggle with household maintenance expenses. That said, these problems can eventually become too difficult to cope with for anyone, and a roofing company will become necessary for you.
Applying architectural shingles isn’t cheap, but that doesn’t mean that applying shingles, in general, will always be as expensive as you and certain online construction expense calculators assume. Applying roofing shingles made from asphalt will ultimately be cheaper than applying other kinds of shingles. The labor costs could actually be relatively high, in fact, so it’s not just about considering the costs associated with initial roofing materials.
Roofers will find applying asphalt shingles easy in most cases. Other roofing materials just take a little longer to put into place than that, which is going to influence the amount of money that you spend on the roof itself. Still, if your roof only requires a certain amount of work, even this procedure won’t be as time-consuming as people could think. It might only take a few new shingles to repair a roof leak, including one that has been contributing to various problems around the house for a while now.
Determining whether the roof has any problems and requires repairs or replacements can be difficult. However, there are various warning signs you should watch out for to avoid bigger and costlier roof problems in the future. Working with professional roofing contractors is one of the best ways of identifying roof problems early. One of the common signs that a roof requires replacement is a leak. Still, roof leaks may occur for many reasons, like storm damage and old materials. When roofing materials are worn out, water can penetrate the shingles and flow into the house. This results in water intrusion as well as visible puddles in rainstorms. Identifying roof problems early helps cut down the average cost to tarp a roof.
You can reduce the average cost to tear off and replace shingles by hiring a contractor to repair or patch a slightly damaged roof. Often, small leaks may not be detected until they require a more significant and costlier fix. If you have a never-ending roof leak, it’s time to accept the average estimate for new roof and proceed with the replacement project.
Sometimes roof damage can be detectable from an early stage. Shingles are the entryway to the roofing system. If there are cracked, curling, or missing shingles on your roof, start researching the average cost to shingle a house to secure the roof. Here are more signs that you need to replace your roof.
Determining whether the roof has any problems and requires repairs or replacements can be difficult. However, there are various warning signs you should watch out for to avoid bigger and costlier roof problems in the future. Working with professional roofing contractors is one of the best ways of identifying roof problems early. One of the common signs that a roof requires replacement is a leak. Still, roof leaks may occur for many reasons, like storm damage and old materials. When roofing materials are worn out, water can penetrate the shingles and flow into the house. This results in water intrusion as well as visible puddles in rainstorms. Identifying roof problems early helps cut down the average cost to tarp a roof.
You can reduce the average cost to tear off and replace shingles by hiring a contractor to repair or patch a slightly damaged roof. Often, small leaks may not be detected until they require a more significant and costlier fix. If you have a never-ending roof leak, it’s time to accept the average estimate for new roof and proceed with the replacement project. Sometimes roof damage can be detectable from an early stage. Shingles are the entryway to the roofing system. If there are cracked, curling, or missing shingles on your roof, start researching the average cost to shingle a house to secure the roof. Here are more signs that you need to replace your roof.
Roofing is a vital part of the home. It protects your family and belongings from weather elements, such as rain, snow, wind, heat, and cold. The roof also helps keep out pests like insects and rodents. If your roof needs repair or replacement, it’s important to choose a contractor who has experience with roofs and can provide quality workmanship. Most roofing companies offer free estimates for new roof installations. If you have an asphalt roof, then it’s important to hire a professional who specializes in this type of roof. Asphalt roofing companies can help you determine whether your roof needs to be replaced.
They’ll inspect your roof to identify any problems that may need fixing before replacing the entire roof. The best thing about asphalt roof restoration is that it can last for years so long as you maintain it properly. When choosing asphalt roofing contractors near me, make sure that they are licensed and insured. They should also be willing to work within your budget. You can use an asphalt roof replacement cost estimator online to get a rough idea of how much your project will cost. Lastly, ask them about their warranty policy. This is important because you want to ensure that your roof lasts for many years after installation
Roof repair costs depend on the type of roof you have and what kind of damage it has. A roof replacement contractor will also consider how old your home is and its condition. Metal roofs can be expensive but last longer and require minimal maintenance. The average cost for metal roof installation is also lower than other roofing materials like aluminum and asphalt. If you think it’s time to have a new roof installed, the average cost for new roof on house that you have to part with will also depend on the size of your home.
Generally, roof repair costs are usually cheaper than installation cost. This is due to several reasons. First, most roof repairs don’t involve replacing the entire roof. They only fix minor problems such as leaking or damaged shingles. Roof repairs are also less complicated than installing a whole new roof. Additionally, roof repairs can often be done in one day, while an entire roof replacement may take weeks or months to complete. So the time you think of installing a new roof, know that the average cost for a new roof and siding is more than what you would have paid on repairs. Depending on your state, the average cost for new roof and gutters could range from $1,000 to $5,000.
Many homeowners will require or seek roofing services at some point. Roofs are susceptible to wear and tear over time, making staying in the house uncomfortable and even dangerous. While regular maintenance is essential to the longevity of a roof house, there are some cases where emergency repairs or replacements are needed. Whenever a house roof goes through severe damage, it is crucial to seek the services of a roofing contractor as soon as possible.
A roofing contractor will be able to assess the damage on a roof and determine whether or not there is a need for a new roof. It is a considerable investment, and it is best to research the general cost of replacing a house’s roof. The internet has a lot of information about how much a new roof costs. Many roofing companies also provide free quotes to help customers budget and plan.
When seeking the services of a roofing contractor, it helps to find a local company. It is easy to work with a company that is trusted in the community and is easily accessible. Some permits are a requirement during a roof replacement or installation, which local companies may know and understand. Ensure that the contractor you work with is licensed and insured before signing any agreements.
If your roof is damaged, consider roof replacement. A professional can recommend that you replace your roof after an inspection. When the damage is extensive, it requires a new roofing install. Slight damage may only need repair. Homeowners need to know the average cost of roof replacement. The correct price estimates allow you to identify an ideal day for the job and order your roofing material.
Another part of the home that may require roof replacement is the garage. Depending on the architecture of your home, the garage may experience extreme winds. Therefore, its roof is likely to get damaged quickly. The average cost of garage roof replacement depends on the size of the garage.
There are different types of roofing you can choose for your home. The use of various roofing materials determines the average cost of home roof replacement or the average cost of commercial roof replacement. The more expensive the roof material, the more the replacement project will cost and the higher the average cost of full roof replacement.
A roof replacement transforms a property by enhancing its appeal and raising its value. Roofs are available in a range of colors. Choose a color that will blend with the surroundings or make the home stand out. The better quality of your roof, the higher you can fetch if you sell your home.
Certain instances may cause you to replace your roof. If your roof is too old, you may have to get a new roof. Depending on where you live, you may still use an asbestos roof. It’s time you removed it and installed a healthier roofing material. Further, if a blast of wind or heavy rains damages your roof, you can get a new roof. Before getting a new roof, hire roofers to inspect or repair the roof. If repairs are not feasible, get a new roof.
How much you pay for a new roof depends on the size of your house and the type of roofing material you use. The average cost for shingle roof replacement is higher than if you use metal roofing planks. Also, the average cost for shingle replacement is more than if you choose to repair the damaged shingle.
The average cost of a new roof for a townhouse ranges from $15,000. However, it depends on how big the house is and the gradient of the roof design. If there is a tear on the roof, the average cost for roof removal depends on the replacement roofing material. You will spend more on roof shingles.
Most roofs can last for years before repair or replacement. However, a roof’s useful life can end without signs of roof failure. Your home will look old and worn even though you’re doing preventive maintenance. It’s important to avoid delaying roof replacement because that could cause severe problems to your home. Here are signs that your roof needs replacement.
Roof replacement is one of the more expensive costs you’ll incur as a homeowner. In fact, unlike installing a new deck or a refurbishing kitchen, it isn’t a home improvement project that you can enjoy directly after its completion. However, it’s an investment that can keep your house in good condition for many years.
If your roof is getting old, consider calling a local roofer to get an estimate. Some homeowners may want to install a new roof instead of replacing it. In that case, they need to know about how much does a new roof cost. However, if you want to replace your roof entirely, consider getting estimates about how much does it cost to replace a roof. Most roofing contractors offer affordable roof replacement options that will cater to your specific needs. Besides, experienced professionals provide the approx cost of new roof that will help you save costs on roofing materials.
As you start planning for your replacement roof, you need to consider how you’re going to do it. You’ll need to hire a roofer to do the work for you. While it might be tempting to try and do it yourself to save money, you shouldn’t do so without proper training. Otherwise, you may get hurt or do a bad job. Then they’ll need to fix it for you anyway. As such, an asphalt shingle roof treatment should be done by a roofing company in your area. Start planning for this investment by finding an asphalt shingle roofing cost calculator online. They can show you how much you’ll expect to pay. While the amount may vary slightly, this will give you a good starting place.
Your roofer will provide shingles, so don’t worry about finding asphalt shingles for sale near me. They can often get them at a cheaper price than a non-professional, so you won’t save money on asphalt shingles price per square foot in the same way your roofer would. Instead, get quotes from several roofers so that you can find the best option for your budget.
Local roofers can help you repair your roof and replace it if need be. To be safe, it’s best to have your roof checked yearly for possible issues. Be vigilant as well. Have you spotted a collection of granules in your gutters, broken, warped, or missing shingles? Is your roof leaking, or is your interior paint bristling? Knowing the signs of a problem can help you save money by avoiding late, expensive fixes. If you think it’s time to get a new roof, ask your roofing contractor about how much does a new roof cost.
According to Angi, the average cost of a new roof is $14,400. However, get quotes from a local contractor about how much does it cost to replace a roof. This is because costs will differ depending on where you live. It’s also a good idea to get multiple estimates for an affordable roof replacement. However, be aware of unreasonably low prices and use online reviews and recommendations from friends and family to help you get a trusted contractor. Once you have found your contractor, get a written contract detailing everything from material pricing to the project timeline. For queries such as the approximate cost of a new roof and more, call a professional today.
While building your home, you were guaranteed of durability of your roof for decades to come. You were delighted with the outcome but didn’t foresee changes like inclement weather. Unfortunately, there’s no way you could salvage your leaking roof as the damage was already done. You should follow specific guidelines if you want to replace your roof. When seeking roofing services, first inquire about different roofing installation procedures. Roof materials vary in how they are installed.
When inquiring about the average cost of new roof per square foot, consider the slope of your roof. Depending on its design, your roof may cost less or more in replacements. Steeper roofs should be carefully considered when choosing the materials to use. Another factor is environmental hazards. If you stay in a region prone to fire, consider having a roofing material that will contain the fire. The average cost of new roof small house is less expensive than that of a large house. Moreover, the average cost of new shingle roof is different from the average cost of replacing a shingle roof. Take your time in reading the fine print of different roofing quotes. Remember, you are purchasing a product that will serve you for years.
Most homeowners have installed shingle roofs due to their affordability and versatility. However, many alternatives are available, and asphalt roofing companies will assist you in making the best selection. If you have an old and damaged shingle roof system, it may be time to hire the services of a roofing contractor to get a replacement.
When you apply for an asphalt roof restoration, contractors will come to your property to assess the damage, listen to your preferences, and give you their expert opinion and a quote. Depending on the damage, your asphalt roof might need a repair or replacement. A good roofer will recommend a roof replacement if your roof leaks, is folding, or completely missing.
If you settle on an asphalt roofing company, you are guaranteed at least 20 years of quality roofing, which is a good investment. Please search for asphalt roofing contractors near me to get a list of reputable contractors in your zone. Ask for a quote and check websites or social pages for client reviews. To get the best deals, search for asphalt shingle rejuvenation costs. On-site, check to see if the contractors follow safety guidelines and ensure they provide you with a warranty for free follow-ups.
At some point in your home ownership journey, you will require the services of home roofing contractors. Whether for roof repairs or replacements, you will benefit from their expertise. Roofing contractors will come prepared with equipment and tools that make their jobs more accessible, and you can trust them to complete them in the shortest time possible.
You will get the best advice on asphalt shingles price per square with contractors. Alternatively, you could check online for roofing companies showing average asphalt shingle roof cost. A complete replacement of a new roof will cost a lot, and it helps to plan financially. Reputable companies offer a warranty to help cover any additional adjustments after replacement.
Replacements can be complex and sophisticated, but if you pay special attention to details, it will be possible to inspect the asphalt shingles roof repair average project. It is important to note that experts best perform roofing tasks and cannot pass as a viable DIY project.
Making the most of the space available requires researching the best ideas for your roofing system. $6,500 is the average asphalt shingles price per square foot. However, the range could be between $1,500 to $11,000.
Do you need a roof repair? If you do, seek the services of a local roofer. Local roofers are knowledgeable and experienced in the repair of damaged roofs. The need for roof repair often arises after years of durable service. The impact of weather elements such as rain, snow, and heat causes natural wear and tear on the roof.
Severe roof damage can also occur due to missing or curled shingles (for asphalt roofs), clogged gutters, and sagging. A local roofer will often offer to inspect your roof to determine if it can be repaired or if you need a new installation. Usually, if a new roof is needed, a local roofer will provide an estimate that details how much per square foot for a new roof and the fascia cost per square foot. The local roofer can also offer before and after roof photos of the different roof types to help you settle on a choice.
In addition to proper repair and installation, hiring a local roofer is beneficial since they’re often knowledgeable about local building codes and the climate and leverage such knowledge to offer excellent roof recommendations. A non-local roofer cannot boast of the same knowledge and might offer bad advice.
Updated 05/25/22
If you have ever seen a building before and after roof replacement, you know how shocking the difference can be. Replacing a roof can increase the value of a building as well as improve how it looks inside and out. But when is it the right time? You know you need a roof repair when there is a leak, missing shingles, or other small issues. When is it necessary to replace the entire roof?
Traditional shingle roof contractors understand the difference between a small repair and deeper issues. They are your best resource when determining whether or not your roof needs to be replaced. They know how to repair your roof when you need roof repair, and when it finally comes time to do a complete replacement, they can provide you with a quote to let you know how much per square foot for a new roof. Metal roof contractors can do the same for a metal roof. Metal roofing is less common and can sometimes last longer, but eventually needs replacement, too. In this article, we’ll look at some of the reasons that you might need a complete roof replacement, rather than a simple roof repair.
Eventually, you’ll need to have your roof replaced. But about how much does a new roof cost? This will depend on a lot of factors, but plan on investing a lot of money into your new roof. The approx cost of new roof will depend on the type of home you have, the type of roof you want, and the cost of labor and supplies. An asphalt roof cost per square foot might be cheaper than many, since asphalt is so popular. So, if you’re trying to save money on your roof replacement, look into asphalt roofing.
A roof replacement contractor can tell you how much to expect to pay for your specific roof. They’ll consider the architectural roof cost, as well as supplies and labor. Get quotes from several contractors, then compare them. Don’t automatically go for the lowest price, but compare what they’re offering, as well as the price. This will help you get the best deal on what you need. By comparing quotes, you can save money on your roof replacement while still getting a good quality roof.
While people often think of what’s inside their homes, it’s important to think about your roof. A sturdy roof helps to ensure that your home remains stable. Roofs are able to withstand a wide variety of conditions. However, every roof gradually wears down over long amounts of time. With that in mind, it’s important to watch out for signs of excessive roof damage. In this post, you’ll learn four signs that your roof needs replacing.
- Lots of Missing Shingles
While leaving at your home, you might notice a few shingles missing from your roof. Considering that, it’s important to learn what is causing this to happen. For instance, a few missing shingles might not be anything to worry about. However, you could soon find that more shingles begin to come down.
- Neighboring Homes are Receiving New Roofs
It’s important to consider looking around your neighborhood. You’ll want to notice the condition of your neighbor’s roofs. Statistics show that asphalt shingles have an average lifespan of 20 to 50 years. Most houses in a neighborhood are built at the same time. If you’re noticing neighbor’s roofs being replaced, it might be time to make this same decision.
- Presence of Moss on Your Roof
In most cases, a roof will make up about 40% of a home’s visual exterior. Therefore, it’s important to ensure that your roof looks great. With that in mind, you’ll want to look for the presence of moss on your roof. In addition to worsening the aesthetics of your home, mossy roofs are potentially dangerous. Moss holds moisture which might seem beneficial. However, this moisture can freeze which causes your shingle to potentially bend. Making matters worse, moss can continue to grow under roofs. Therefore, it’s best to contact roof replacement contractors to have mossy roofs taken care of.
- Check for Light Leaks
Another way to check the condition of your roof is to step in the attic. Many homes have attics located directly under a roof. Therefore, you’ll be able to find out quite a bit from stepping into the attic. In particular, you’ll want to check for any light leaking into this room. Leaking light is often a sign that it’s time to contact a roof replacement company.
To summarize, there are several signs that your roof needs to be replaced. Roof replacement is an understandably important concern for many homeowners. One study found that 88% of those surveyed felt that durability was the most roof replacement concern. That being said, there are several types of roofing materials to consider. Therefore, it’s best to have professional roof replacement contractors help you with this process. In turn, you’ll be able to rest assured that your new roof has been installed by helpful professionals.