Debris Accumulation in Roof Valleys

Roofs have these tricky spots called valleys where two slopes meet. They’re super important for guiding water away, but they can also become a magnet for leaves, twigs, and all sorts of gunk. When this stuff piles up, it’s called roof valley debris accumulation, and it’s not great for your house. This buildup can cause all sorts of problems, from leaks to more serious damage, so it’s worth paying attention to.

Key Takeaways

Roof valleys are designed to channel water, but they easily collect debris like leaves and twigs.
Accumulated debris in roof valleys can lead to water pooling, which speeds up material wear and can cause leaks.
Regularly clearing out debris from valleys and checking for damage is a key part of roof maintenance.
Proper installation of flashing in valleys is vital to prevent water intrusion, even when debris is present.
Addressing roof valley debris accumulation is a simple but important step in protecting your home’s structure and longevity.

Understanding Roof Valley Debris Accumulation

The Role of Roof Valleys in Water Management

Roof valleys are essentially the internal corners where two sloping roof sections meet. They’re designed to channel large amounts of water down towards the gutters and downspouts. Think of them as miniature drainage channels built right into your roof. Because of their shape and the volume of water they handle, they’re super important for keeping your house dry. Properly functioning valleys prevent water from pooling and seeping into your home’s structure. When they get clogged, water can back up, which is never a good thing for any building.

Common Sources of Debris in Valleys

So, what exactly ends up in your roof valleys? A lot of things, honestly. Leaves and twigs from nearby trees are probably the biggest culprits. They get blown around by the wind and naturally settle in these low spots. Pine needles are another common offender, especially if you have pine trees around. Shingle granules, which are the tiny bits that coat your shingles to protect them from the sun, can also break off over time and wash down into the valleys. Even dirt and dust can accumulate. Basically, anything that can be carried by wind or water has the potential to end up here.

Impact of Debris on Roof Performance

When debris piles up in the valleys, it creates a dam. This blockage stops water from flowing freely. Instead of going where it’s supposed to, the water starts to pool. This standing water can then find its way under your shingles or flashing, leading to leaks. It also keeps the roofing materials in that area constantly wet, which can speed up their decay. Over time, this constant moisture and the added weight of the debris can really wear down your roof, making it less effective at protecting your home. It’s like leaving a sponge sitting on wood; eventually, the wood is going to rot.

Debris accumulation in roof valleys isn’t just an eyesore; it’s a direct threat to your roof’s ability to do its job. Ignoring it can lead to a cascade of problems, from minor leaks to significant structural damage down the line. Regular checks are key.

Here are some common types of debris found:

Leaves and twigs
Pine needles
Shingle granules
Dirt and sediment
Moss and algae (in damp conditions)

This buildup can significantly impact how well your roof sheds water. For instance, a valley clogged with leaves can cause water to back up and potentially seep under the flashing, compromising the seal. This is why keeping these areas clear is so important for the overall health of your roofing system.

Consequences of Roof Valley Debris Accumulation

When debris piles up in your roof valleys, it’s not just an eyesore. It actually starts to cause some real problems for your roof’s performance and longevity. Think of the valley as a major highway for water runoff from two large roof sections. When that highway gets blocked, water has nowhere to go but to sit and pool.

Accelerated Material Degradation

That standing water is a big deal. It keeps the roofing materials underneath constantly wet. This can lead to premature breakdown, especially for asphalt shingles where the granules can be washed away, exposing the matting underneath. This makes the shingles weaker and more susceptible to damage from sun and weather. For metal flashing, constant moisture can speed up corrosion, leading to rust and eventual holes. It’s like leaving metal out in the rain without drying it off – eventually, it’s going to degrade faster than it should.

Increased Risk of Water Intrusion

This is probably the most serious consequence. When water can’t drain properly, it starts looking for ways in. It can seep under shingles, find tiny cracks in flashing, or even work its way through nail holes. This water intrusion can then start damaging the underlayment and the roof decking below. If it gets past that, you’re looking at leaks into your attic and potentially down into your living spaces. This is how small debris problems can turn into major water damage issues, affecting everything from insulation to ceiling drywall. Proper flashing is key to preventing water intrusion around window flashing, and valleys are a critical part of that system.

Compromised Structural Integrity

Over time, persistent moisture in the roof valleys can lead to rot in the wooden roof decking and even the rafters. Rot weakens the wood, making it soft and spongy. This can cause visible sagging in the roofline. In severe cases, prolonged water damage and rot can compromise the overall structural integrity of the roof, making it less able to withstand loads like snow or wind. It’s a slow process, but the damage can be extensive and costly to repair.

Hindered Drainage Systems

Debris in the valleys doesn’t just sit there; it often makes its way into gutters and downspouts. When these drainage components get clogged with leaves, twigs, and other gunk from the roof, water can’t flow away from the house effectively. This backup can cause water to pool on the roof, exacerbating all the problems mentioned above. It also puts extra stress on the gutters themselves, potentially causing them to pull away from the fascia or even collapse. A well-functioning building envelope relies on effective drainage, and clogged valleys are a direct threat to that.

Diagnostic Approaches for Valley Debris

When you’re trying to figure out what’s going on with your roof valleys, especially when it comes to debris, you can’t just guess. You’ve got to do some detective work. It’s not always obvious from the ground, so getting a closer look is key.

Visual Inspection Techniques

This is where you start. Grab a ladder, or better yet, have a professional do it, and really look at the valley. What are you seeing? Leaves, twigs, shingle grit, maybe even larger stuff like pinecones? All of this can get stuck.

Look for standing water: If water isn’t flowing freely, that’s a big sign something’s blocked.
Check for shingle damage: Are the shingles in the valley worn down faster than elsewhere? This can happen when debris holds moisture against them.
Examine flashing: Make sure the metal flashing isn’t bent, rusted, or pulling away. This is a common failure point.

Identifying Water Intrusion Patterns

Debris in the valley can cause water to back up. This water doesn’t always show up right where the blockage is. You might see signs of water intrusion in places that seem unrelated at first.

Interior Stains: Look for water stains on ceilings or walls, especially near the roofline or in the attic. These can be subtle, so a good look around is needed.
Damp Insulation: In the attic, feel the insulation. If it’s damp or smells musty, water has likely found its way in. This is a classic sign of a leak, and debris in the valley could be the culprit. Water stains on ceilings are a common indicator.
Mold or Rot: Persistent moisture can lead to mold growth or rot in the roof decking or framing. This is a more serious sign that needs immediate attention.

Assessing Underlying Damage

Sometimes, the debris itself isn’t the main problem; it’s what the debris causes. Trapped moisture can lead to bigger issues over time.

The real danger of valley debris isn’t just the mess; it’s the prolonged contact of moisture with roofing materials and the underlying structure. This can accelerate wear and tear, leading to leaks and potential structural compromise if left unchecked.

Material Degradation: Debris can hold moisture, which speeds up the breakdown of shingles and underlayment. You might see premature granule loss or cracking.
Flashing Failure: Constant moisture trapped by debris can cause metal flashing to corrode or rot, creating entry points for water. This is especially true if the flashing wasn’t installed perfectly to begin with.
Decking Issues: If water gets past the shingles and underlayment due to a blocked valley, the roof deck can start to rot. This is a serious structural problem that needs professional assessment. Dealing with ice dam intrusion often involves checking valleys for similar moisture issues.

Preventative Maintenance Strategies

Taking care of your roof’s valleys isn’t just about fixing things when they break; it’s about stopping problems before they even start. Think of it like regular check-ups for your car – you do them to avoid a breakdown on the highway, right? Your roof valleys are kind of the same. They’re super important for directing water away, and if they get clogged up, that water has to go somewhere it shouldn’t.

Routine Debris Removal Schedules

This is probably the most straightforward thing you can do. Leaves, twigs, shingle grit, and other junk tend to pile up in roof valleys pretty quickly, especially if you have trees nearby. If you let this stuff sit there, it traps moisture. That moisture can start to break down your roofing materials and even the underlayment. Plus, a big pile of wet leaves can act like a dam, forcing water up under shingles or into places it shouldn’t be.

Aim to clear out debris at least twice a year. A good time is usually late spring after everything has bloomed and dropped its bits, and again in the fall after most of the leaves have fallen.
If you have a lot of trees, you might need to do it more often. Keep an eye on it.
When you’re clearing, be gentle. You don’t want to damage the shingles or flashing underneath. A soft brush or a leaf blower on a low setting usually works well.

Don’t forget that debris in the valleys can also be a fire hazard, especially in dry climates. Keeping them clear is a safety measure too.

Trimming Overhanging Vegetation

Speaking of trees, those branches hanging over your roof are a double-edged sword. They provide shade, which can be nice, but they also drop a lot of stuff onto your roof. More importantly, if a branch gets heavy with snow or breaks in a storm, it can cause serious damage to your roof, especially the valleys.

Keep branches trimmed back at least a few feet from the roofline. This reduces the amount of debris that lands in the valley and minimizes the risk of storm damage.
Regularly inspect the health of your trees. Remove any dead or dying branches that could fall.
Consider the type of trees you have. Some trees shed more needles or leaves than others, which might influence how often you need to trim.

Regular Gutter and Downspout Checks

Your gutters and downspouts are the exit ramps for the water that flows off your roof, including the water from the valleys. If they’re clogged or damaged, water can back up onto the roof or pool around your foundation. This is bad news all around.

Clean your gutters and downspouts at the same time you’re clearing your roof valleys. Make sure there are no blockages that would prevent water from flowing freely.
Check that the gutters are securely attached to the house and have a slight slope towards the downspouts. If they’re sagging, water will just sit in them.
Ensure downspouts are directing water away from your home’s foundation. You don’t want water pooling right next to the house.

Doing these simple things regularly can make a huge difference in how long your roof lasts and prevent costly repairs down the line. It’s all about staying ahead of the game.

Material Considerations for Valley Longevity

When we talk about roof valleys, the materials used are super important for how long they last and how well they work. It’s not just about slapping something in there; you’ve got to think about what can stand up to all the weather and water that flows through these critical areas. Picking the right stuff can make a big difference in avoiding leaks and keeping your roof in good shape for years.

Durability of Valley Flashing Materials

The flashing in your roof valleys is like the unsung hero. It’s the barrier that stops water from getting where it shouldn’t. Because valleys channel so much water, the flashing material needs to be tough. Think about metals like aluminum, galvanized steel, or copper. Each has its pros and cons. Aluminum is light and doesn’t rust, but it can be softer. Steel is strong but needs good galvanization to fight off rust. Copper looks great and lasts ages, but it’s pricier. The key is that whatever you choose, it has to resist corrosion and wear from constant water flow and temperature changes. A good flashing material will stand up to UV rays, rain, and even freeze-thaw cycles without breaking down.

Compatibility with Roofing Coverings

It’s not enough for the flashing to be durable on its own; it also has to play nice with whatever roofing material you’ve got covering the rest of your roof. If you mix certain metals, like copper flashing with aluminum shingles, you can get something called galvanic corrosion. Basically, one metal eats away at the other, and that’s a fast track to a leak. You want materials that won’t react negatively with each other. For example, asphalt shingles might need a different type of underlayment or flashing detail than, say, metal roofing panels. Always check the manufacturer’s recommendations to make sure everything is compatible. Getting this wrong can really shorten the life of your valley system.

Resistance to Environmental Stressors

Roof valleys are basically water highways, and they take a beating from the environment. We’re talking about constant moisture, debris piling up, and temperature swings. Materials need to handle all of this. Some materials might degrade faster under intense sun (UV exposure), while others can become brittle in the cold. You also have to consider wind. While valleys themselves aren’t usually the first place to blow off, the materials need to be securely fastened to resist uplift and the general wear and tear that comes from being exposed to the elements 24/7. Choosing materials that are specifically rated for your local climate conditions is a smart move. For instance, in areas with heavy snowfall, you’ll want something that can handle freeze-thaw cycles without cracking. If you’re in a region prone to high winds, the fastening method and material strength become even more important. It’s all about picking something that’s built to last in your specific environment.

Installation Best Practices for Valleys

When it comes to installing roof valleys, getting it right from the start is super important. This is where two roof planes meet, and it’s a prime spot for water to collect and flow. If it’s not set up correctly, you’re asking for trouble down the road, like leaks and damage.

Proper Flashing Integration

The flashing in a valley is like the main defense against water. It needs to be installed so it can handle all the water that comes its way. Think of it as a channel. You want to make sure the flashing material itself is tough and won’t break down easily. It should extend far enough up under the roofing material on both sides to prevent water from getting behind it. Also, the type of flashing matters – metal is common, but you need to make sure it’s compatible with your roofing material to avoid weird reactions or corrosion. For asphalt shingles, you might use a self-adhering ice and water shield under the metal flashing for extra protection, especially in colder areas where ice dams can be a problem. This layer acts as a backup if the main flashing fails or if water gets pushed up underneath. It’s all about creating a watertight seal that can last.

Secure Fastening and Sealing

Once the flashing is in place, how you secure it is key. Nails or screws should be placed strategically so they don’t become entry points for water. Often, the fasteners are covered by the roofing material or sealed over. Using the right kind of sealant is also a big deal. It needs to be flexible enough to handle the roof expanding and contracting with temperature changes but strong enough to keep water out. Some sealants can dry out and crack over time, so picking one that’s made for outdoor roofing use is a must. A good seal means no little gaps for water to sneak through.

Ensuring Adequate Water Shedding

This is about making sure the valley design helps water move off the roof efficiently. The angle and width of the valley play a role here. A valley that’s too flat or too narrow might not drain well, leading to water pooling. You want a nice, clear path for the water to flow down and away. This means keeping the installation clean, without any debris or excess materials that could block the flow. It’s a simple concept, but it makes a huge difference in how well your roof handles rain and snow. A well-designed valley system helps prevent water from backing up and causing damage to the roof structure and the interior of the home. It’s a critical part of the overall roof drainage system.

Here’s a quick rundown of what makes a good valley installation:

Material Choice: Use durable, compatible flashing materials.
Overlap: Ensure sufficient overlap of flashing and roofing materials.
Fastening: Secure fasteners properly, ideally concealed or sealed.
Sealing: Apply high-quality, weather-resistant sealant.
Drainage: Design the valley to promote efficient water flow.

Getting the valley right is more than just a step in the roofing process; it’s a foundational element for preventing water damage. It requires attention to detail and a good understanding of how water moves across a roof surface. Skipping steps or using the wrong materials here can lead to expensive problems later on.

Addressing Existing Roof Valley Issues

When you notice problems in your roof valleys, it’s time to take action. Ignoring these issues can lead to bigger headaches down the road. Think of it like a small leak in your car – you can patch it up for a bit, but eventually, you’ll need to deal with the real problem before it causes major damage.

Repairing Damaged Flashing

Damaged flashing in the valley is a common culprit for leaks. This is where two roof planes meet, and the flashing acts as a critical barrier against water. Over time, it can corrode, crack, or become dislodged, especially after harsh weather.

Visual Inspection: Look for signs of rust, tears, or gaps in the metal or rubber flashing. Check if it’s pulling away from the roof deck or if the sealant around it has failed.
Material Degradation: Metal flashing can corrode, particularly if it’s not the right type for your climate or if it’s constantly exposed to moisture. Asphalt-based flashing can become brittle and crack.
Repair Process: For minor damage, a qualified roofer might be able to reseal the flashing with a compatible roofing sealant or patch small holes. However, if the flashing is significantly damaged or corroded, it will need to be completely removed and replaced. This often involves carefully lifting the shingles on either side of the valley to access and secure the new flashing properly.

Clearing Blocked Waterways

Valleys are designed to channel water away from the roof. If they get clogged with leaves, twigs, and other debris, water can back up, sit on the roof, and find its way into your home.

Debris Removal: This is often the first step. Manually remove all accumulated debris. Be careful not to damage the roofing materials or flashing while doing so.
Gutter and Downspout Check: Ensure that the gutters and downspouts connected to the valley’s drainage path are also clear. A blocked downspout can cause water to back up into the valley.
Underlying Issues: Sometimes, the blockage is a symptom of a larger problem, like overhanging trees that constantly shed leaves or a roof design that encourages debris to collect. Addressing the source of the debris is key to preventing future blockages.

Evaluating System Integrity

It’s not just about the valley itself; you need to look at how it fits into the whole roof system. A problem in the valley can sometimes point to issues elsewhere, or vice versa.

Shingle Condition: Check the shingles on either side of the valley. Are they cracked, curled, or missing? Damaged shingles can allow water to reach the flashing and underlayment.
Underlayment: If possible, inspect the underlayment beneath the flashing and shingles. This layer provides secondary protection, and if it’s compromised, leaks are almost certain.
Structural Assessment: In cases of prolonged water intrusion, the roof deck or even the rafters underneath could be damaged. Signs of this include sagging in the valley area or soft spots when walking on the roof (though walking on a roof should only be done by professionals).

Addressing existing roof valley issues requires a methodical approach. It starts with identifying the specific problem, whether it’s damaged flashing, debris buildup, or a more widespread system failure. Then, a plan for repair or replacement is put into action, always considering how the valley integrates with the rest of the roofing assembly. Getting this right prevents minor problems from turning into costly structural damage and keeps your home protected.

Here’s a quick look at common valley issues and their potential fixes:

Issue	Potential Cause	Common Solution(s)
Leaks	Damaged flashing, clogged valley, cracked shingles	Repair/replace flashing, clear debris, replace damaged shingles
Standing Water	Poor slope, debris accumulation	Improve slope (if possible), regular debris removal, check drainage
Material Deterioration	Age, UV exposure, constant moisture	Replace flashing, consider more durable valley liner material
Sagging Valley	Water damage to decking/rafters, heavy debris	Repair/replace damaged structure, clear debris, address water intrusion source

The Role of Ventilation in Valley Health

Think of your attic like a lung for your house. It needs to breathe properly to keep things healthy, and that’s where ventilation comes in. When your attic isn’t ventilated well, moisture can get trapped. This is especially true around roof valleys, which are already prone to collecting debris and holding onto water. Proper airflow helps to move that moist air out before it can cause problems.

Preventing Moisture Buildup

Poor ventilation is a major culprit behind moisture issues in the attic. Without a good exchange of air, humid air from inside the house can rise and condense on the cooler surfaces of the roof structure. This condensation can lead to mold and mildew growth, which isn’t good for your health or the integrity of your home. It can also make wood rot over time. A well-ventilated attic helps to keep these moisture levels in check. This is why having the right balance of intake and exhaust vents is so important for your entire roofing system.

Regulating Attic Temperature

Ventilation does more than just manage moisture; it also plays a big role in keeping your attic temperature stable. In the summer, a hot attic can transfer heat down into your living space, making your air conditioner work harder. In the winter, a poorly ventilated attic can lead to ice dams forming at the roof’s edge, which can cause water to back up under your shingles. Proper airflow helps to vent out that excess heat in the summer and can reduce the temperature difference that leads to ice dams in the winter. This temperature regulation is key for the longevity of your roofing materials.

Mitigating Condensation Risks

Condensation is a sneaky problem that can happen when warm, moist indoor air meets cold attic surfaces. This is particularly a concern in roof valleys where debris might slow down drainage, giving moisture more time to settle. Without adequate ventilation, this condensation can mimic the damage caused by leaks, leading to rot and mold. It’s like having a slow leak that you can’t see.

Here’s a quick look at how ventilation helps:

Removes excess heat: Vents allow hot air to escape, keeping the attic cooler.
Dries out moisture: Airflow carries away moisture that can lead to mold and rot.
Reduces temperature swings: Helps prevent extreme heat in summer and ice dams in winter.
Protects structural components: Keeps wood framing and decking from deteriorating due to moisture.

Think of your attic ventilation as a critical part of your home’s air circulation strategy. It works hand-in-hand with your HVAC system to create a more comfortable and durable home environment. Making sure your vents are clear and functioning correctly is a simple but effective way to protect your roof, especially in those tricky valley areas.

Long-Term Roof System Performance

Lifecycle Cost Analysis of Maintenance

When we talk about roofs, it’s easy to get caught up in the initial price tag. But honestly, that’s just a small piece of the puzzle. Thinking about the entire life of your roof is what really matters for your wallet and your peace of mind. This means looking beyond just the installation cost and considering everything that comes after. We’re talking about how much you’ll spend on keeping it in good shape, how often you might need to patch things up, and when you’ll likely have to replace the whole thing. A roof that seems cheap upfront could end up costing way more over the years if it needs constant attention or fails prematurely.

Here’s a breakdown of what goes into that lifecycle cost:

Initial Installation: The price of materials and labor when the roof is first put on.
Routine Maintenance: Regular cleaning, inspections, and minor upkeep like clearing valleys and checking seals.
Repair Frequency: How often you need to fix leaks, replace damaged sections, or address issues like flashing failures.
Replacement Timing: The eventual cost of a full roof replacement, which depends on the materials chosen and how well the roof has been maintained.

It’s a bit like owning a car. A cheap used car might get you around for a while, but if it’s always breaking down, you’ll spend a fortune on repairs. A slightly more expensive, well-maintained car often turns out to be the better deal in the long run.

The true value of a roofing system isn’t just its upfront price, but its ability to perform reliably and cost-effectively over its entire lifespan. Neglecting maintenance is a common pitfall that significantly increases long-term expenses and risks.

Integrating Valley Care into Roof Inspections

So, you’re getting your roof checked out – that’s great! But are the inspectors really looking at the valleys? These spots are like the roof’s drainage highways, and if they’re clogged with leaves and gunk, water can’t flow where it’s supposed to. When you schedule regular roof inspections, make sure the person doing the work knows to pay special attention to the valleys. They should be looking for:

Accumulated debris (leaves, twigs, dirt)
Signs of wear or damage to the flashing in the valley
Any water staining or dampness that might indicate a leak
The condition of the shingles or roofing material right up to the edge of the valley

Think of it as a specific checklist item for your inspector. If they’re just glancing at the main roof surface, they might miss the problems brewing in these critical areas. A thorough inspection means checking every nook and cranny, and the valleys definitely count.

Planning for Roof Replacement

No roof lasts forever, right? Eventually, you’ll face the need for a full replacement. Planning for this down the road is way smarter than waiting until your roof is actively failing. When you’re thinking about replacement, consider the materials you used the first time around. Did they hold up well? Were they worth the cost? Maybe it’s time to explore different options that offer better longevity or require less maintenance, especially in those tricky valley areas. The choices you make now will impact the cost and hassle of replacement later. It’s also a good time to think about upgrades – maybe better flashing materials or a roofing system that naturally sheds debris more effectively. Getting a professional assessment of your current roof’s condition can give you a heads-up on when replacement might be necessary, allowing you to budget and plan accordingly.

Wrapping Up: Keeping Valleys Clear

So, we’ve talked a lot about roof valleys and why they can be such a pain when they fill up with leaves and gunk. It’s not just about how it looks, either. All that stuff can hold moisture, mess with your shingles, and even lead to bigger problems down the road, like leaks or damage to the roof structure. Keeping an eye on these areas and clearing them out regularly, maybe a couple of times a year, is a pretty simple step that can save you a lot of headaches and money. Think of it as basic maintenance, like changing the oil in your car. A little effort now can really help your roof last longer and do its job protecting your home.

Frequently Asked Questions

What exactly is a roof valley and why is it important?

A roof valley is the V-shaped section where two sloping sides of a roof meet. It’s super important because it’s where a lot of rainwater and snowmelt collects and needs to flow down efficiently. Think of it as a channel designed to guide water away from your house.

What kind of stuff usually ends up in roof valleys?

You’ll often find leaves, twigs, pine needles, dirt, and other bits of nature that fall from trees or blow around. Sometimes, pieces of roofing material can break off too. Basically, anything that can get caught in a downward slope can end up there.

How does all that junk in the valley cause problems?

When debris piles up, it blocks the natural path for water. This can make water pool up, which then seeps under your shingles or flashing. It can also trap moisture, leading to rot, and the extra weight can stress the roof structure over time.

What are the signs that my roof valleys have too much debris or are causing issues?

Look for water stains on your ceilings, especially near the walls where the roof slopes meet. You might also see moss or algae growing in the valleys, or notice water backing up instead of draining away. Sometimes, you can even see the debris directly if you look up at your roof.

How often should I clean out my roof valleys?

It’s a good idea to check and clean your roof valleys at least twice a year, usually in the spring and fall. If you have a lot of trees around your house, you might need to do it more often, especially after windy storms or when leaves are falling.

Besides cleaning, what else can I do to keep my roof valleys in good shape?

Keeping branches from overhanging your roof helps a lot, as it reduces the amount of debris that falls. Also, making sure your gutters and downspouts are clear ensures that the water has a place to go once it leaves the valley. Regular checks by a professional can catch small issues before they become big ones.

Can I just ignore small amounts of debris in the valleys?

Even small amounts can start to cause problems over time. Trapped moisture can slowly damage the roofing materials underneath. It’s best to tackle debris before it builds up and leads to leaks or more serious damage, which can be much more expensive to fix.

What happens if I don’t maintain my roof valleys properly?

If you don’t keep your roof valleys clear, water can start to get under your roof covering. This can lead to leaks inside your house, damage to the roof structure like wood rot, and even compromise the overall strength of your roof. It’s like not cleaning out a drain – eventually, it will cause a backup and flood.

TOEDWY

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