When we think about roof damage, it’s usually storms, heavy rain, and winter frost that come to mind first. But here in Stoke-on-Trent and across Staffordshire and Cheshire, our summers have been getting hotter and more intense in recent years, and prolonged heatwaves can be just as tough on a roof as a bad winter. Here’s what actually happens to your roof in extreme heat, and what you can do to protect it.
Thermal Expansion And Contraction
Roofing materials expand as they heat up and contract again as they cool down overnight. During a heatwave, that daily swing in temperature is much bigger than usual, and the constant expansion and contraction puts real stress on tiles, slates, flashing and joints. Over time, this cycle can cause tiles to crack, slip out of position, or work loose at the nail fixings, especially on older roofs where the materials have already lost some flexibility.
Flat roofs are particularly exposed to this issue. Felt roofing can soften and become tacky in intense heat, then harden again as it cools, and repeated cycles like this can lead to cracking, bubbling, or the felt lifting away from the deck. Modern EPDM rubber and GRP fibreglass systems handle temperature swings far better than old-style felt, which is one of the main reasons we recommend upgrading older flat roofs when the time comes.
UV Damage To Roofing Materials
It isn’t just the heat itself causing problems — prolonged UV exposure during long, sunny summers gradually breaks down the protective coatings on roofing felt, rubber membranes and even some tile finishes. This can leave materials more brittle and more likely to crack or fail earlier than they should, particularly on south-facing roof slopes that get the most direct sun throughout the day.
Loft Ventilation And Overheating
A poorly ventilated loft space can trap heat, pushing the temperature inside the roof void far higher than the air temperature outside. Over time, this can dry out and warp timber battens and rafters, and it also makes upstairs rooms uncomfortably hot to live in. Good roof ventilation, whether that’s ridge vents, soffit vents, or additional tile vents, helps hot air escape and reduces the strain on the roof structure during a heatwave.
Signs Your Roof May Have Been Affected By Heat
After a spell of particularly hot weather, it’s worth keeping an eye out for a few tell-tale signs: cracked or slipped tiles, felt that looks bubbled or blistered on a flat roof, gaps appearing around flashing or ridge tiles, and any new staining or damp patches appearing on ceilings once the weather turns wet again. Small movement caused by heat often only becomes an obvious problem once autumn rain starts finding its way through.
If you’ve noticed any of these signs, or simply haven’t had your roof checked in a while, it’s worth arranging an inspection before the weather changes again. Catching heat-related movement early is usually a quick, low-cost fix — left unchecked, it can turn into a much bigger repair once winter rain gets underneath.
Low Cost Roofing has over 20 years’ experience inspecting and repairing roofs across Stoke-on-Trent, Staffordshire and Cheshire, and every full roof replacement comes with an insurance-backed guarantee of up to 25 years. Call us on 01782 694710 or 07581 388 962, or email info@lowcostroofingstoke.co.uk, for a free, no-obligation roof inspection.
Winter can be tough on roofs across the UK, especially here in Stoke-on-Trent where cold, wet and changeable weather is common. As temperatures drop and rainfall, frost and snow increase, your roof can face several issues that may lead to leaks, structural damage, or costly repairs if not addressed early.
1. Ice Dams and Frozen Gutters
Ice dams form when heat escapes through the roof, melting snow which then refreezes at the eaves and gutters. This prevents water from draining properly and can force moisture back under roof tiles, causing leaks and damp inside your property.
Prevention Tip: Ensure your loft insulation and ventilation are adequate, and keep gutters clear before winter arrives.
2. Blocked or Overflowing Gutters
Gutters often become blocked with leaves, moss and debris during autumn. When winter rain or snow arrives, water cannot drain correctly and may overflow onto walls, soffits and foundations, increasing the risk of damp and damage.
Prevention Tip: Regular gutter cleaning and inspections can prevent costly water damage during winter.
3. Condensation and Poor Ventilation
Warm air rising from inside your home can condense in cold loft spaces if ventilation is poor. Over time, this moisture can lead to mould growth, timber rot and reduced insulation performance.
Prevention Tip: Make sure roof vents are clear and airflow in the loft space is not restricted.
4. Damaged Roof Tiles and Flashing
High winds, frost and temperature changes can loosen or crack roof tiles and damage flashing around chimneys and vents. Even small gaps can allow water to penetrate your roof during heavy winter rainfall.
Prevention Tip: Arrange a professional roof inspection to identify and repair damage before it worsens.
5. Heavy Snow Build-Up
Although heavy snowfall is less common, when it does occur it can add extra weight to your roof. Flat and low-pitched roofs are especially vulnerable to strain caused by snow accumulation.
Prevention Tip: If snow builds up excessively, seek professional advice rather than attempting to remove it yourself.
6. Freeze and Thaw Damage
Repeated freezing and thawing can cause roofing materials to expand and contract, leading to cracks, weakened seals and general wear over time.
Prevention Tip: Quality materials and timely repairs help protect your roof from long-term winter damage.
Professional Winter Roofing Services in Stoke-on-Trent
If you notice leaks, damp patches, missing tiles or overflowing gutters this winter, it’s important to act quickly. Small problems can quickly become expensive if ignored during harsh weather.
Low Cost Roofing Stoke provides reliable roof repairs, inspections and maintenance to keep your home protected throughout the winter months. Contact our experienced team today for a free quote or expert advice.
Your chimney is one of the hardest-working parts of your home. Day after day it withstands driving rain, freezing temperatures, and the constant cycle of heating and cooling that comes with a working fireplace or flue. The mortar joints that hold its brickwork together are particularly vulnerable to this punishment — and when they start to fail, the problems can spread fast.
Repointing is the process of removing deteriorated mortar from between the bricks and replacing it with fresh material. Done at the right time, it’s a relatively affordable repair. Left too long, failing mortar can allow water into the chimney stack, accelerate brick deterioration, and even cause structural instability at height. Knowing what to look for can save you a significant amount of money and stress.
Here are the most important signs that your chimney needs repointing — and what to do if you spot them.
1. Crumbling or missing mortar joints
The most obvious sign that repointing is overdue is mortar that is visibly crumbling, recessed, or missing altogether between the bricks. Mortar has a lifespan of roughly 25 to 30 years under normal conditions, though chimneys are exposed to far harsher weather than the rest of your brickwork, so deterioration often sets in sooner.
You may be able to spot crumbling mortar from the ground using binoculars, but the joints at the very top of the stack — closest to the chimney pot — are often the worst affected and the hardest to see. If you can see obvious gaps or powdering mortar even from ground level, the situation is likely more advanced than it appears.
Don’t be tempted to run a finger along any mortar you can reach at low level and assume that tells you everything. Chimney mortar degrades from the top down as water pools in the joints, freezes, and widens the cracks over successive winters.
2. Damp patches on interior walls or ceilings near the chimney breast
If you notice damp staining, peeling wallpaper, or a musty smell in a room adjacent to your chimney breast, failing mortar joints are one of the most common culprits. Water finds the path of least resistance, and open mortar joints in an exposed chimney stack give it a direct route into your home’s structure.
The tricky thing about chimney damp is that water can travel a significant distance before it shows itself. A wet patch on a first-floor ceiling, for example, might be caused by a chimney joint failure several feet above it. This means the problem is often attributed to a roof leak or plumbing issue before the chimney is properly investigated.
If internal damp is appearing near the chimney breast and your roof covering appears intact, it’s well worth having a roofer inspect the chimney stack itself. Repointing the joints at that stage is far cheaper than the plastering, redecorating, and potential timber treatment that prolonged damp ingress can require.
3. White staining (efflorescence) on the chimney brickwork
Efflorescence is the white, powdery or crystalline deposit that appears on brickwork when water-soluble salts are carried to the surface as moisture moves through the masonry and evaporates. On a chimney, it’s a reliable indicator that water is penetrating the stack — often through compromised mortar joints.
While the staining itself isn’t structurally dangerous, it’s a warning that moisture is actively working through the brickwork. Left unaddressed, this repeated wetting and drying cycle weakens both the mortar and the bricks over time, eventually leading to spalling (where the face of the brick flakes away) and potentially serious structural damage.
If you can see white staining running down the face of your chimney stack, particularly in vertical streaks below the joints, it’s a strong signal that repointing should be assessed sooner rather than later.
4. Loose, shifted, or spalling bricks
Once mortar deteriorates sufficiently, individual bricks can begin to move. Frost action is particularly effective at this: water enters an open joint, freezes, expands, and gradually pushes bricks out of position. You may notice bricks that appear slightly proud of the stack’s face, or that have rotated slightly from their original position.
Spalling — where the surface of a brick breaks away — often begins when water gets behind the face of the brick after entering through degraded mortar. In the Stoke-on-Trent area, where we experience cold, damp winters with regular freeze-thaw cycles, spalling is a common consequence of chimney joints that haven’t been maintained.
By the time individual bricks are visibly loose or spalling, the chimney typically requires more than just repointing. Some bricks may need to be replaced before fresh mortar is applied. The earlier deteriorating joints are caught, the more likely it is that straightforward repointing will be sufficient.
5. Gaps between the chimney stack and the roof flashing
Chimney flashing is the lead or metal strips that seal the junction between the chimney stack and the surrounding roof covering. It’s designed to flex slightly with natural movement in the building, but it relies on the mortar joints it’s bedded into being intact.
If you notice gaps appearing between the flashing and the chimney brickwork, this is often caused by mortar failure pulling the flashing away from the stack. This is a double problem: the flashing gap allows water into the roof structure directly, while the failing mortar underneath is also allowing water into the chimney stack itself.
Flashing repairs and chimney repointing frequently need to be carried out together. If a roofer is inspecting your flashing, ask them to assess the condition of the mortar joints at the same time.
6. Visible cracks running through the mortar or bricks
Hairline cracks in mortar are not unusual in older chimneys and don’t always demand urgent attention. However, cracks that run through the mortar in a horizontal pattern across multiple joints, or that extend into the bricks themselves, are more concerning and should be assessed by a professional.
Diagonal cracks or stepped cracking through the brickwork can indicate differential movement in the chimney, which may have structural causes beyond simple mortar deterioration. Vertical cracking through the bricks rather than along the joints is similarly worth investigating promptly.
In most cases, visible cracking is a sign that water has been entering the stack for some time and that the freeze-thaw cycle has been at work. Early intervention — repointing the affected joints before the damage progresses — is always the most cost-effective course of action.
7. Your chimney hasn’t been inspected in over 10 years
Even if you can’t see any obvious signs of deterioration from the ground, a chimney that hasn’t been professionally inspected in over a decade may well have joints that are beginning to fail at height. The uppermost sections of the stack — the courses closest to the chimney pot and cap — are the most exposed and tend to deteriorate first. They’re also the hardest to assess without actually getting onto the roof.
A routine chimney inspection by an experienced roofer will typically involve getting up close to the stack to assess the condition of the pointing, flashing, and chimney pot. In many cases, minor repointing at this stage prevents a full chimney repair further down the line.
As a general rule of thumb, chimneys on properties built before the 1980s should be inspected every 5 to 10 years, particularly if the property has been through several cold winters without any maintenance.
Why early action on chimney repointing matters
Repointing a chimney at the right time is one of the most cost-effective maintenance jobs you can carry out on your home. The cost of repointing a standard chimney stack in the Staffordshire area is a fraction of what a full chimney rebuild or extensive internal damp remediation can run to. Water is patient — given time and deteriorated joints, it will work its way through a chimney stack and into your roof structure, causing damage that multiplies with every passing winter.
The Stoke-on-Trent area’s climate — characterised by wet, cold winters and significant temperature variation — makes chimney maintenance particularly important for local homeowners. Freeze-thaw action on open mortar joints is aggressive, and damage that might take 15 years to develop in a milder climate can progress significantly faster here.
If you’ve spotted any of the signs above, or if your chimney simply hasn’t been looked at in a number of years, it’s worth getting a professional assessment sooner rather than later.
Get a free chimney inspection in Stoke-on-Trent and Staffordshire
At Low Cost Roofing Stoke, our team carries out chimney inspections and repointing work across Stoke-on-Trent, Newcastle-under-Lyme, Stafford, Crewe, and the wider Staffordshire area. We’ll give you an honest assessment of what your chimney needs — and a free, no-obligation quote before any work begins.
With over 20 years of experience in chimney repair and repointing, we have the knowledge to identify deterioration early and carry out quality work that lasts. All our chimney repointing is completed using properly matched mortar to ensure compatibility with your existing brickwork and to avoid accelerating further damage.
Your garage roof plays a crucial role in protecting your vehicle, tools and stored belongings from the elements. Over time, exposure to rain, frost, wind and UV rays can wear it down — often long before you notice obvious damage. By spotting early signs, you can avoid expensive repairs and prevent the problem from spreading.
1. Visible Cracks, Splits or Holes
Cracks and splits are common signs that your garage roof is reaching the end of its lifespan. Flat roofs, felt roofs and older tiled roofs are especially prone to this kind of deterioration.
Hairline cracks in felt or bitumen
Tears caused by weather or falling branches
Small holes allowing water to seep in
If left untreated, these small openings can expand quickly, leading to leaks and structural damage.
2. Water Stains or Damp Patches Inside the Garage
One of the earliest and most reliable signs of roof trouble is moisture appearing inside your garage. Look for:
Dark patches on the ceiling
Damp streaks on walls
Mildew or mould growing in the corners
These signs usually indicate water entering through the roof covering or around the edges.
3. Sagging or Uneven Roof Areas
A sagging area often suggests water is pooling on the roof, weakening the structure below. Flat roofs are particularly susceptible to this issue.
A noticeable dip in the roof surface
Ponding water after rainfall
Visible soft spots when gently pressed
Ignoring these signs can lead to structural failure or major repairs.
4. Peeling or Blistering Roof Surface
Blisters and bubbles on the roof’s surface often occur when moisture becomes trapped under felt, asphalt or rubber membranes.
Raised bubbles under the surface
Loose or peeling sections of felt
Soft, spongy patches underfoot
These blisters eventually crack, allowing water to enter freely.
5. Damaged or Missing Roof Tiles (for Tiled Garage Roofs)
If your garage roof is tiled, inspect it visually from a safe distance for any broken, loose or missing tiles.
Cracked tiles
Tiles that have slipped out of position
Gaps where tiles have fallen off
Even a single missing tile can expose the underfelt and lead to damp or leaks inside the garage.
6. Rusting on Metal Roofs
Metal garage roofs can last for many years but are vulnerable to rust if their protective coating wears away.
Orange or brown rust patches
Flaking paint or protective coatings
Corrosion around fixings and screws
Rust weakens the metal sheets, eventually creating holes and leaks.
7. Excessive Moss or Algae Growth
Moss and algae thrive in damp conditions and can signal hidden moisture problems. On felt and tiled roofs, moss can lift edges and trap water.
Thick moss patches
Green or dark algae streaks
Moss growing around joints and edges
If moss is spreading quickly, it could indicate the roof is holding moisture or degrading.
8. Guttering Problems Around the Garage
Sometimes the issue isn’t the roof surface itself but the drainage system around it.
Blocked gutters causing water to spill over
Loose or broken gutter brackets
Downpipes not draining properly
Overflowing water can damage the edges of your garage roof and seep into the structure.
When to Call a Professional
Early signs of roof damage should never be ignored. A quick repair today is far more affordable than a full roof replacement later. Professional roofers can assess the extent of the damage, recommend the best repair method and ensure the garage remains safe and weatherproof.
If your garage roof is old, leaking, sagging or showing any of the signs above, getting an expert inspection is the best next step.
Garage Roof Repairs in Stoke-on-Trent
Low Cost Roofing Stoke specialises in repairing and replacing all types of garage roofs, including felt, EPDM, tiled and metal systems.
By checking your garage roof regularly and acting quickly when early signs appear, you can avoid major damage and prolong the roof’s life. A little attention now can save a lot of money and protect what matters inside your garage.
Roof flashing is one of the most important — and most overlooked — components of any roofing system. These thin strips of metal or lead are installed around chimneys, skylights, vents, and roof joints to direct water away from vulnerable areas. When flashing fails, even a small gap can allow water to penetrate your roof, leading to damp walls, ceiling damage, and costly structural repairs. The good news? In many cases, you can repair roof flashing yourself with the right tools and a bit of know-how.
At Low Cost Roofing Stoke, we’ve helped hundreds of homeowners across Stoke-on-Trent tackle flashing problems before they spiral into major leaks. Here’s our expert step-by-step guide.
What Causes Roof Flashing to Fail?
Flashing can deteriorate for several reasons. Age and weathering are the most common culprits — over time, sealant cracks, metal corrodes, and mortar joints crumble. Thermal expansion and contraction can also cause flashing to lift or pull away from the roof surface. Poor installation, storm damage, or years of heavy Staffordshire rainfall can all accelerate wear. Spotting the problem early is the key to a simple, affordable fix.
Tools & Materials You’ll Need
Before you start, gather the following: a wire brush, roofing sealant or flashing cement, a caulking gun, a trowel, replacement flashing (lead or aluminium), roofing nails, a hammer, and a stable ladder. Always work on a dry, calm day and follow proper ladder safety at all times.
Step 1: Inspect & Identify the Problem
Begin with a thorough visual inspection. Look for lifted, buckled, or missing sections of flashing. Check for cracked sealant, rust stains, and damp patches on your ceiling directly below the affected area. Identifying exactly where and how the flashing has failed will help you choose the right repair method.
Step 2: Clean the Area
Use a wire brush to remove rust, old sealant, dirt, and debris from the damaged flashing and surrounding surface. A clean, dry surface is essential for any new sealant or patching material to bond properly. Wipe everything down with a dry cloth before moving on.
Step 3: Re-seal Small Cracks & Gaps
For minor cracks or lifted edges, a quality roofing sealant or flashing cement is often all you need. Apply it generously along the joint, press the flashing back into position, and smooth it with a trowel. Make sure there are no gaps left uncovered. This approach works well for chimney and skylight flashing that has simply dried out over time.
Step 4: Patch Damaged Sections
If a section of flashing is corroded or torn, cut a patch from matching flashing material. Lead is the traditional choice and highly durable, while aluminium is lighter and easier to work with. Cut the patch so it overlaps the damaged area by at least 6cm on each side, apply flashing cement underneath, press it firmly into place, and seal all edges thoroughly to prevent any water ingress.
Step 5: Replace Flashing Completely (If Needed)
Sometimes the damage is too extensive to patch. In this case, carefully remove the old flashing with a pry bar or trowel, taking care not to disturb surrounding tiles. Fit new flashing to the original profile, secure it with roofing nails, and seal all joints and edges with flashing cement. Re-point any disturbed mortar around chimney stacks once the new flashing is in place.
When to Call a Professional Roofer
While minor repairs are well within a confident DIYer’s ability, significant flashing replacement — especially around chimneys or complex roof junctions — is best left to a qualified roofer. Working at height carries real risk, and a poorly fitted repair can make leaks worse in the long run. If you’re unsure about any part of the process, it’s always worth getting a professional opinion.
The team at Low Cost Roofing Stoke offers fast, affordable flashing repairs across Stoke-on-Trent and the surrounding areas. Get in touch today for a free, no-obligation quote and let us take the worry out of your roof.
