You know, roofs are pretty important. They keep the rain out, the heat in (or out, depending on the season), and generally keep our homes safe from the weather. But sometimes, things go wrong. Little issues can turn into big problems, especially with the flashing. This stuff is everywhere on your roof, guiding water away from tricky spots. When it fails, water finds its way in, and that’s never good. We’re going to look at some common flashing failure points roofing pros see all the time.
Key Takeaways
- Flashing is super important for keeping water off your roof, especially around things like chimneys and vents. When it’s not put in right or starts to break down, leaks happen.
- Things like rust, old age, and just the weather (sun, heat, cold cycles) can make flashing materials weak and cause them to fail over time.
- How the flashing is installed really matters. If it’s not overlapped right, fastened correctly, or if the wrong materials are used, it’s just asking for trouble.
- Ignoring small problems with flashing, like cracks or loose bits, can lead to much bigger water damage issues down the road. Regular check-ups are a good idea.
- When flashing fails, it’s often part of a bigger problem with how the whole roof system is working, or not working, together. Finding leaks means looking at the whole picture.
Critical Flashing Failure Points
Flashing is what keeps water out of the most vulnerable spots on your roof—where two surfaces meet, or where something like a vent pokes through. It’s amazing how such a small strip of metal makes a big difference for your home’s dry, mold-free future.
Improper Installation At Transitions
When flashing is installed where roof slopes change or meet a wall, it has to be done just right. If flashing isn’t layered and sealed properly at these transitions, water sneaks in unnoticed until you see interior leaks.
Common mistakes that cause problems:
- Insufficient overlap between flashing segments
- Incorrect fastener placement that leaves holes or open seams
- Forgetting to secure flashing tightly to the structure
- Using incompatible materials
Once water gets behind the flashing at these transition points, it will quickly rot wood, stain ceilings, and breed mold. Paying close attention to installation at these joints is key. Regular checks are a smart move, especially after major storms or if repairs were recently made. Get more tips on checking vulnerable roofing spots in this reference about common failure areas for water intrusion.
Corrosion And Material Degradation
Even the best material won’t last forever. Rain, sleet, temperature swings, and the sun’s UV rays all wear flashing down, especially if you live in a spot with harsh weather.
Table: Typical Lifespans of Common Flashing Materials
| Material | Expected Lifespan (years) |
|---|---|
| Galvanized Steel | 15–25 |
| Aluminum | 20–35 |
| Copper | 50+ |
| Rubber/Bits | 10–15 |
Rust, corrosion, and cracks show up as the material ages—corrosion leaves rusty streaks, and old sealants may crack apart. A single neglected corroded spot allows water to flow where it shouldn’t. Timely repairs and periodic, basic maintenance will stretch out the lifespan of your flashing by years.
Inadequate Sealing At Joints
The seams, corners, and overlaps are where flashing works the hardest—and where failure tends to start. When these spots aren’t sealed tightly (or the sealant dries and cracks), it becomes an instant water entry point.
Warning signs to watch for:
- Gaps or raised edges at overlaps
- Dried, cracked, or missing sealant
- Small water stains in your ceiling after storms
If you see these, even if the flashing looks okay from the ground, take a closer look. Sometimes a tube of quality roofing sealant can fend off a world of trouble.
Just one weak spot in flashing—no matter how small—can let rain find its way inside, leading to big, expensive headaches down the road.
Roof Penetrations And Vulnerabilities
Think about all the things that poke through your roof: chimneys, plumbing vents, attic vents, and skylights. Each one is a potential weak spot where water can try to sneak in. If the flashing around these areas isn’t installed just right, or if it starts to break down over time, you’ve got a problem. It’s like having a tiny hole in your raincoat – eventually, you’re going to get wet.
Chimney And Vent Integration Issues
Chimneys and vents are common culprits for leaks. The flashing here needs to be carefully fitted and sealed to the chimney or vent pipe and then integrated with the roofing material. If there are gaps, cracks, or if the metal flashing itself corrodes, water can seep down into your attic and walls. This isn’t just about a little drip; it can lead to rot in your roof structure and mold growth. Proper installation means the flashing should extend up the chimney or vent pipe and be covered by the roofing material in a way that sheds water effectively. We often see issues where the flashing wasn’t extended high enough, or where incompatible materials were used, leading to premature failure.
Skylight Flashing Deficiencies
Skylights add great natural light, but they’re also a major penetration point. The way the flashing is installed around a skylight is critical. It needs to create a watertight seal that can handle the angles and edges of the skylight frame. Problems can arise from incorrect overlap of the flashing pieces, inadequate sealing at the corners, or damage from impacts like hail. If the flashing isn’t properly integrated with the roofing material, water can travel underneath and into your home. It’s a common area for leaks, especially after heavy rain or snow.
New Penetration Points From Additions
When you add something to your roof, like a new vent for a bathroom fan or even solar panel mounts, you’re creating a new place for water to potentially enter. Each new penetration needs its own dedicated flashing system. If these aren’t installed with the same care as the original penetrations, or if the roofing material around them isn’t properly sealed, they become vulnerable spots. It’s important that any new additions are planned with proper flashing in mind from the start. We’ve seen cases where additions were made without fully considering how to integrate new penetrations, leading to leaks down the line. It’s all about making sure every single point where the roof surface is broken is protected.
Roof Valleys And Water Flow Obstructions
Roof valleys are where two sloping roof sections meet. They’re basically like gutters built right into the roof itself, designed to channel a lot of water down to the ground. Because of this, they get a lot of attention from water and debris, making them a common spot for problems if not installed or maintained correctly.
Flashing Failures In Roof Valleys
The flashing in a roof valley is super important. It’s usually a piece of metal, like aluminum or galvanized steel, that sits under the shingles or roofing material. Its job is to create a watertight seal where those two roof planes come together. If this flashing gets damaged, corroded, or wasn’t installed right in the first place, water can seep underneath it. This can lead to leaks that might not show up right away, but they can cause rot in the roof deck and even damage the ceiling below. A properly installed valley flashing system is key to preventing water intrusion. Sometimes, you’ll see open valleys, which use a metal liner that’s exposed, and these are really good at shedding water, especially on metal roofs or in areas that get a lot of rain. Open valley roofing design is a smart way to handle heavy precipitation.
Debris Accumulation And Drainage Blockages
Think about all the stuff that falls on your roof: leaves, twigs, dirt, maybe even small branches. In roof valleys, all that gunk tends to collect. When debris builds up, it can dam up the water flow. Instead of draining off the roof, the water sits there. This standing water can then find its way into tiny cracks or under shingles that might otherwise be fine. Over time, this constant moisture can break down the roofing materials and the underlayment. It also creates a nice little home for moss and algae to grow, which further traps moisture and debris. Keeping valleys clear is a big part of regular roof maintenance.
Improper Underlayment Integration
Underlayment is that secondary layer of protection installed between the roof deck and the shingles. In valleys, how this underlayment is installed is really critical. There are different ways to do it, like using a woven-in-place underlayment or a pre-formed metal valley liner. If the underlayment isn’t properly integrated with the flashing and the main roofing material, it can create pathways for water. For example, if the underlayment doesn’t extend far enough or isn’t sealed correctly, water that gets past the main flashing can still get to the deck. This is especially true in areas prone to ice dams, where water can back up significantly. Understanding the function of roof valleys means appreciating every layer of protection.
Roof-To-Wall Integration Weaknesses
The connection between your roof and the walls is a really common spot for problems to start. It’s where two big parts of your house meet, and water really likes to find its way into any tiny gap. If this area isn’t sealed up tight, you’re asking for trouble.
Flashing System Deficiencies
Flashing is supposed to be that metal or rubber barrier that guides water away from vulnerable spots. When it comes to where the roof meets the wall, this flashing needs to be installed just right. Sometimes, it’s not put in deep enough, or it’s not properly integrated with the siding or the roofing material itself. This can lead to water getting behind the flashing and into the wall structure. Think of it like a leaky gutter – if the water has nowhere to go but down the wall, it’s going to cause damage.
- Improper overlap: If pieces of flashing don’t overlap correctly, water can seep through the seams.
- Insufficient depth: Flashing needs to extend far enough up the wall and under the roofing material to create a proper seal.
- Material incompatibility: Using the wrong type of flashing material can lead to premature corrosion or failure, especially when it contacts different metals or building materials.
Sealant Integration Failures
Even with good flashing, sealants are often used to fill any remaining small gaps. These sealants, like caulk or specialized roofing adhesives, are key to a watertight seal. Over time, though, sealants can dry out, crack, or pull away from the surfaces they’re meant to protect. This is especially true if the wrong type of sealant was used in the first place, or if it wasn’t applied correctly. A good sealant job is like a second line of defense, and when it fails, water can find its way in.
The building envelope is the continuous barrier separating interior and exterior environments. It includes walls, roofing, insulation, air barriers, moisture barriers, and structural connections. Its primary functions are water management, air control, thermal regulation, and structural continuity. Failure in any component affects the entire system.
Mechanical Fastening Vulnerabilities
How the flashing and surrounding materials are actually attached matters a lot. Nails or screws are often used, and if they’re not placed correctly, or if the wrong type is used, they can become entry points for water. For example, nails that are too short won’t hold the flashing securely, and nails that are too long might go through the sheathing and into the interior. Also, the spacing of fasteners is important; too few, and the flashing can lift, creating gaps. It’s all about making sure everything is held down tight and sealed up properly.
We often see issues where the flashing wasn’t properly integrated with the siding, leaving a gap that allows water to run down the wall. This is a common problem that can lead to rot and other structural damage if not caught early. It’s a good idea to have your roof and wall connections inspected regularly, especially after major weather events, to catch these issues before they become big problems. You can find more information on detecting roof leaks to help you spot potential problems.
Material Degradation And Environmental Stress
UV Exposure Impact On Flashing
Sunlight, especially the ultraviolet (UV) rays, can really break down roofing materials over time. For flashing, this means the protective layers can start to crack or become brittle. Think of it like a plastic toy left out in the sun for too long – it gets weak and falls apart. This degradation makes the flashing less effective at keeping water out, creating little pathways for leaks to start, particularly around areas like chimneys and vents where flashing is constantly exposed. It’s a slow process, but over years, it adds up.
Thermal Cycling Effects
Temperature changes, day in and day out, cause materials to expand and contract. This constant back-and-forth, known as thermal cycling, puts stress on flashing joints. Over time, these stresses can lead to tiny cracks or loosen fasteners. In areas with big temperature swings, like places that get very hot during the day and cold at night, this effect is even more pronounced. It’s like bending a paperclip back and forth; eventually, it’s going to break. This movement can compromise the seal that flashing is supposed to provide.
Moisture Absorption and Corrosion
Materials used for flashing, especially metals like aluminum or galvanized steel, can corrode when exposed to moisture. This is often made worse by things like salt in coastal air or chemicals in roof treatments. Corrosion eats away at the metal, weakening it and eventually causing holes or cracks. Even if the flashing isn’t directly submerged in water, constant dampness from rain, snowmelt, or condensation can lead to rust and decay. This is why choosing the right material for your climate is so important. For instance, in areas prone to storms, flashing can get dislodged, allowing water to seep in and start the corrosion process [da53].
Here’s a quick look at how different environmental factors can affect common flashing materials:
| Material | UV Exposure Impact | Thermal Cycling Impact | Moisture/Corrosion Risk |
|---|---|---|---|
| Aluminum | Brittleness | Fatigue | High |
| Galvanized Steel | Surface pitting | Fatigue | High |
| Copper | Patina formation | Minimal | Moderate (verdigris) |
| Stainless Steel | Minimal | Minimal | Low |
It’s not just about the material itself, but how it interacts with its surroundings. Even the best flashing can fail if it’s constantly battling harsh environmental conditions without proper protection or maintenance. Regular checks can catch early signs of wear and tear before they become big problems.
When flashing starts to break down due to these environmental stresses, it’s a sign that the entire roof system might be under strain. Ignoring these signs can lead to bigger issues down the road, affecting not just the roof but potentially the whole structure. Keeping an eye on the condition of your flashing, especially after severe weather, is a good idea [c842].
Installation Errors Leading To Failure
When it comes to roof flashing, sometimes mistakes made during the installation set the stage for future headaches. Even the best materials can’t make up for errors at this stage. Incorrect installation is one of the top reasons why flashing systems end up failing far earlier than expected. Here’s where things usually go wrong:
Incorrect Fastener Placement
Fasteners help hold flashing in position, but put them in the wrong spot, and water can slip right in. Some frequent issues include:
- Fasteners driven too close to the edge, which weakens the hold.
- Nails not seated properly, leaving openings for water.
- Overdriven or underdriven fasteners, which can warp the metal or leave gaps.
| Fastener Issue | Possible Result |
|---|---|
| Too close to edge | Flashing lifts, leaks |
| Overdriven | Metal deformation |
| Underdriven | Water entry, loose fit |
| Wrong type used | Incompatible corrosion |
If the wrong type of fastener is used, you might also run into chemical reactions that quickly eat away at the metal, leading to more problems than you bargained for. Paying close attention to fastener type and placement is a step you don’t want to skip.
Improper Overlap And Seaming
The way pieces of flashing fit together is just as important as the material itself. Overlapping is supposed to shed water away from seams, but shortcuts can ruin this:
- Not enough overlap between flashing sections, leaving exposed seams.
- Seams running uphill instead of with the water flow.
- Failing to use sealant where pieces join.
A good rule of thumb is at least a 2-inch overlap when possible. Anything less creates a direct pathway for moisture. Proper seaming makes the difference between a watertight seal and a slow, hard-to-find leak.
When you cut corners during installation, you’re not just making the roofer’s life easier for that day—you’re inviting water into your home year after year.
Incompatible Material Selection
It’s not just about how you install flashing, but what you use. Sometimes, installers grab what’s at hand without thinking about how those materials react over time. Issues that come up include:
- Using aluminum against copper or pressure-treated wood, resulting in galvanic corrosion.
- Selecting flashing that isn’t made for exterior weather or UV exposure.
- Choosing sealants or tapes that don’t stick to the base material.
Here’s a quick tip: Make sure every material you use is rated for roof applications and matches your specific roofing system. For example, certain metal flashings pair poorly with specific shingles or membranes.
When all these details are handled well, flashing protects your home from water, wind, and pests. If not, you may be facing frequent roof repairs—not to mention plenty of stress. For more about advanced integration approaches, see these details on step and counter flashing methods.
Maintenance Neglect And Flashing Issues
You know, it’s easy to forget about the roof once it’s installed. Out of sight, out of mind, right? But that’s exactly where problems start. Neglecting regular maintenance is a surefire way to invite trouble, especially when it comes to flashing. Think of flashing as the tiny but mighty guardians around vulnerable spots like chimneys, vents, and where the roof meets a wall. If they’re not looked after, they can’t do their job.
Lack Of Sealant Replacement
Sealants are like the glue holding flashing systems together, keeping water out. Over time, though, sun exposure and temperature swings can make them brittle and cracked. When this happens, water finds its way in. It’s not always a big, obvious leak at first. Sometimes it’s just a slow drip that can cause rot and mold damage over months or even years. Replacing old, dried-out sealant is a pretty straightforward job, but it’s one that often gets put off. It’s a task that should be part of your routine roof inspection schedule.
Debris Accumulation And Drainage Blockages
Leaves, twigs, dirt – they all love to gather around flashing, especially in valleys or near vent pipes. This debris traps moisture against the flashing and the roofing material. Worse, it can block drainage paths, causing water to pool up. Standing water is never good for a roof. It puts extra stress on materials and can seep into places it shouldn’t. Keeping these areas clear is simple but makes a big difference.
Failure To Address Minor Damage
Sometimes, you might notice a small dent in the flashing, a loose nail, or a tiny gap. It might not seem like a big deal at the moment. But these small issues are like an open invitation for water. If you ignore them, they can quickly turn into major leaks. Addressing these minor problems early on is way easier and cheaper than dealing with the extensive damage they can cause down the line. It’s all about staying ahead of the curve with your property maintenance.
System Interaction And Water Intrusion
Flashing As A System Component
It’s easy to think of flashing as just a piece of metal or rubber, but it’s actually a really important part of the whole roofing system. It’s not just there to look pretty; it’s designed to work with all the other parts of your roof – the shingles, the underlayment, the vents, and even the walls – to keep water out. When you install flashing, you’re creating a connection point, and these connection points are often where things can go wrong if not done right. Think of it like a chain; if one link is weak, the whole chain is compromised. The same goes for your roof. Every piece has a job, and the flashing’s job is to manage water flow around tricky spots. If it fails, water can find its way into places it really shouldn’t be, causing all sorts of problems down the line.
Water Paths and Leak Tracing
Figuring out where a leak is coming from can be a real headache. Water doesn’t always travel in a straight line, and it can travel quite a distance from where it first enters your home. It might show up on your ceiling downstairs, but the actual entry point could be way up on the roof, maybe near a chimney or a vent pipe. This is where understanding how water moves across and through your roof system becomes key. You have to think about gravity, wind-driven rain, and how water might be wicked up under shingles or flashing. Sometimes, you’ll see staining or dampness in the attic that gives you a clue, but often it takes a careful, systematic inspection to trace the path back to the source. It’s like being a detective for your house.
Condensation Mimicking Leaks
Here’s something that can really throw you for a loop: condensation. Sometimes, the moisture you see inside your attic or on your ceiling isn’t from rain getting in through a faulty flashing. Instead, it’s moisture from inside your house that’s getting into the attic and then condensing on cooler surfaces, especially when the weather changes. This can look a lot like a roof leak, with water stains and dampness. Poor attic ventilation is usually the culprit here. If the air in the attic can’t circulate properly, warm, moist air gets trapped and turns into water droplets. It’s important to be able to tell the difference between a true roof leak and condensation, because the solutions are completely different. Fixing condensation usually involves improving airflow, not necessarily replacing flashing.
Here’s a quick look at common signs:
| Symptom | Likely Cause |
|---|---|
| Water stains after rain | Roof leak (flashing, shingles, etc.) |
| Dampness on cold days | Condensation (poor attic ventilation) |
| Mold growth in attic | Condensation or persistent leak |
| Water pooling on roof | Drainage issue or flashing failure |
| Rust on flashing | Material degradation or improper installation |
Structural Deformation And Flashing
Sometimes, the roof itself starts to change shape, and that’s where flashing can really get into trouble. Think about it: if the roof deck starts to sag or warp, the metal or rubber flashing that’s supposed to be sitting neatly in place can get pulled, bent, or even torn. This isn’t just about looks; it creates gaps where water can sneak in.
Load Imbalance Affecting Flashings
When a roof structure isn’t balanced, maybe due to uneven snow loads or issues with how the framing was put together, it can put extra stress on certain areas. This stress can cause the roof deck to flex or settle over time. If flashing isn’t installed with enough give or isn’t properly secured to handle this movement, it can lead to cracks or separations. It’s like pulling on a piece of tape too hard – eventually, it’s going to peel or tear.
Deck Deterioration Near Joints
Water is sneaky, and if it gets past the main roof covering, it can start to rot the wood decking underneath. This is especially problematic around joints and where flashing meets the roof. As the wood weakens and deteriorates, it loses its ability to hold fasteners securely. This means flashing might start to pull away, not because it was installed wrong initially, but because the material it’s attached to is falling apart. This is a common issue that can be hard to spot until a leak becomes obvious.
Framing Failure Impact
In more severe cases, the underlying framing – the rafters or trusses that support the whole roof – can fail. This is a big deal and will definitely cause noticeable sagging or even collapse in sections of the roof. When the main structure is compromised, the flashing system is put under immense strain. It’s not designed to bridge large structural gaps or support significant weight shifts. A framing failure almost guarantees that the flashing will fail too, leading to major water intrusion and further damage to the building envelope. It’s a cascade effect where one major problem triggers others.
Ventilation And Condensation Impact
When we talk about roof flashing, it’s easy to just focus on how it handles rain and snow. But there’s another big player in the game: ventilation. Or, more accurately, the lack of it. Poor attic ventilation is a major culprit behind a lot of flashing problems, and it all comes down to moisture.
Think about it. Your attic space, especially in warmer months, can get incredibly hot. Without good airflow, that heat gets trapped. Then, when the temperature drops, or when warm, moist air from inside your house rises into the cooler attic, you get condensation. This moisture can settle on all sorts of surfaces, including the underside of your roof deck and, you guessed it, your flashing. Over time, this constant dampness can lead to a few nasty issues.
Moisture Buildup Near Flashings
This is where things start to get serious. When condensation collects around flashing, especially at joints and penetrations like chimneys or vent pipes, it creates a damp environment. This isn’t just annoying; it actively works against the flashing’s integrity. Metal flashing can start to corrode, weakening it and making it more prone to cracks or separation. For other materials, prolonged moisture can lead to rot or degradation, compromising the seal. It’s like leaving a wet sponge on metal – eventually, it’s going to rust. This constant dampness is a silent killer for flashing systems, making them fail long before they should. Proper attic ventilation is key to preventing this, helping to regulate temperature and remove excess moisture before it can cause damage. Without it, trapped heat and moisture can lead to condensation, mold, rot, and insulation damage. Proper installation of flashing around roof penetrations is crucial, but so is ensuring the surrounding environment is dry.
Mold Growth From Poor Ventilation
That moisture buildup we just talked about? It’s a perfect breeding ground for mold and mildew. Mold doesn’t just look bad; it can actually start to break down building materials. If mold starts growing on or around your flashing, it can compromise the sealants and adhesives used, leading to leaks. It can also spread to the roof decking and rafters, causing structural damage that’s much more expensive to fix than a simple flashing repair. Plus, mold spores can become an indoor air quality issue if they find their way into your living space. It’s a cascade effect: poor ventilation leads to condensation, condensation leads to mold, and mold leads to material damage and potential health problems.
Structural Weakening Around Penetrations
When moisture lingers around flashing, especially near roof penetrations, it doesn’t just affect the flashing itself. The wood framing, decking, and sheathing in that area are also exposed. Constant dampness can lead to wood rot, weakening these structural components over time. A compromised roof deck or rafter can’t support the roof covering properly, leading to sagging or even more serious structural failures. This is particularly concerning around chimneys and vents, which are often points where flashing is critical. If the wood around these penetrations rots away due to poor ventilation and condensation, the flashing might be intact, but the structure it’s supposed to be protecting is failing. This can also make the roof more susceptible to wind damage, as weakened materials offer less resistance. Poor attic ventilation also contributes by causing moisture buildup, weakening roof materials over time, making them more susceptible to wind damage.
The interplay between ventilation, condensation, and flashing integrity is often overlooked. While flashing’s primary job is to shed water, the internal environment of the attic plays a significant role in its long-term performance and the health of the surrounding structure. Addressing ventilation issues proactively can prevent a host of secondary problems that stem from moisture buildup.
Wrapping It Up
So, we’ve gone over a bunch of ways flashing can go wrong. It’s not just about slapping some metal around a pipe and calling it a day. Things like extra weight on the roof, new holes for vents, or even just how air moves around can mess things up if not planned right. And remember, roofs don’t fail on their own. It’s usually a mix of bad materials, installation mistakes, weather, and not keeping up with maintenance. Figuring out where a leak started means looking at the whole picture, not just one spot. Keep an eye on those flashing joints, valleys, and anywhere something pokes through the roof. A little attention now can save a lot of headaches later.
Frequently Asked Questions
What is flashing and why is it important for my roof?
Flashing is like a protective shield made of metal or rubber that goes around parts of your roof where water might try to sneak in. Think of it around chimneys, vents, or where two roof sections meet. Its main job is to guide water away so it doesn’t get under your shingles and cause leaks.
What are the most common places where roof flashing fails?
Flashing often has trouble in tricky spots. This includes where the roof meets a wall, around chimneys and vents, and in roof valleys where water flows down. These areas are constantly dealing with water and movement, which can wear down the flashing over time.
Can bad weather damage my roof flashing?
Yes, definitely! Strong winds can lift or tear flashing, heavy rain can wash away protective sealants, and extreme temperature changes can make the metal expand and contract, eventually causing cracks. Over many years, things like rust and sun exposure also weaken the flashing.
What happens if my roof flashing starts to fail?
When flashing fails, water can get into places it shouldn’t. This can lead to leaks inside your home, causing water stains on ceilings, damaged insulation, and even rot in the wooden parts of your roof. It’s like leaving a door open for water to cause trouble.
How can I tell if my roof flashing needs repair?
Look for signs like rust or cracks on the metal flashing, especially around chimneys or vents. You might also see loose pieces, gaps where water could get in, or water stains on your ceiling or in the attic. Sometimes, you can even see granules from shingles in your gutters, which might mean water is getting under them.
Is it better to repair or replace flashing?
It depends on the damage. Small issues like a loose seam or a minor crack might be fixable with sealant or by re-securing it. However, if the flashing is badly rusted, cracked in many places, or has been improperly installed from the start, replacing it is usually the best long-term solution.
How often should I have my roof flashing checked?
It’s a good idea to have your roof, including the flashing, inspected at least twice a year, usually in the spring and fall. It’s also smart to get a check after any major storm with high winds or heavy rain. Catching problems early can save you a lot of money and headaches.
What’s the difference between flashing and sealant?
Flashing is usually a piece of metal or rubber that’s shaped to fit specific areas and direct water. Sealant, like roofing cement or caulk, is used to fill small gaps and create a watertight seal, often working together with the flashing. Think of flashing as the main barrier and sealant as the extra glue to keep everything tight.
