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Roofing Materials: Common Problems & How to Fix Them

Published 2026-08-01 · Updated 2026-08-01

The Nest & Yard editorial team

Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-01.

How we choose products

Our pick: the Everbuild Black Jack 904 Roof Felt Adhesive – High Strength – Black – 1 Litre — the best Roofing Materials we tested, from £12.18.

A leaky roof can quickly turn a pleasant outdoor space into a damp disaster, and addressing these issues promptly is key to protecting your home. This guide focuses on diagnosing and tackling some of the most frequent problems encountered when working with roofing materials like felt or clout nails – you might find yourself dealing with situations similar to those faced when applying Everbuild Black Jack adhesive or securing roofing felt with Galvanised Roofing Felt Clout Nails, as used by IKO for shed roofs. Remember that while these simple checks can often resolve minor issues, anything beyond a basic inspection should be referred to a qualified roofing professional for proper assessment and repair.

See the full range in Roofing Materials.

Everbuild Black Jack 904 Roof Felt Adhesive – High Strength – Black – 1 Litre
Editor's Choice

#1 Pick

Everbuild Black Jack 904 Roof Felt Adhesive – High Strength – Black – 1 Litre
Rated 4.4 out of 5 stars (3,968)
  • Bitumen Adhesive
  • 1 Litre

£12.18

Pros

  • High-strength bitumen adhesive bonds roofing felt to timber, metal and concrete
  • Also doubles as a chipping adhesive for the final capping layer
  • Thousands of verified reviews back up its reliability for shed and flat roof repairs

Cons

  • Strong solvent smell while curing needs good ventilation
View on Amazon →
Everbuild Black Jack 904 Roof Felt Adhesive - High Strength - Black - 5 Litre
Best Value

#2 Pick

Everbuild Black Jack 904 Roof Felt Adhesive - High Strength - Black - 5 Litre
Rated 4.4 out of 5 stars (3,968)
  • Bitumen Adhesive
  • 5 Litre

£28.90

Pros

  • Larger 5L tin suits bigger flat roof and shed roofing jobs without re-ordering
  • High-strength bitumen adhesive bonds felt to timber, metal and concrete
  • Same trusted formula as the smaller 1L tin, with thousands of verified reviews

Cons

  • Strong solvent smell while curing needs good ventilation
View on Amazon →
Galvanised Roofing Felt Clout Nails 13mm (Pack of 50)
Best Budget

#3 Pick

Galvanised Roofing Felt Clout Nails 13mm (Pack of 50)
Rated 4.5 out of 5 stars (1,256)
  • Galvanised Steel
  • 13mm, Pack of 50

£3.38

Pros

  • Wide clout heads grip roofing felt securely without tearing it
  • Galvanised finish resists rust in exposed outdoor conditions
  • Amazon Choice pick with a strong review track record for the price

Cons

  • Small pack size means larger jobs need several packs
View on Amazon →

Pros

  • Well-known IKO roofing brand with a strong track record on Amazon UK
  • Standard grade mineral felt suits sheds, summerhouses and outbuildings
  • Available in multiple lengths and colours to match the job

Cons

  • Standard grade has a shorter lifespan than premium polyester felts
View on Amazon →

FAQ

My new roofing material isn't producing the expected level of water runoff – what could be causing this?+

Reduced runoff can often stem from accumulated debris blocking drainage channels. Carefully inspect the roof’s surface for leaves, moss, or other obstructions that might be impeding the flow of water; a gentle brush may help remove loose material. If the problem persists after cleaning, consider whether the angle of the roofing material is sufficient for adequate drainage – this is typically fixed during installation but worth observing.

I’m hearing an unusual rattling noise coming from my roofing material; what might be causing it?+

Rattling sounds frequently indicate loose components or vibrations. Check that all fixings, clips, and fasteners are securely tightened – don't overtighten as this could damage the material itself. Also, ensure there isn’t anything nearby (like wind-borne branches) causing the structure to vibrate.

Water is dripping from one area of my roofing material; where should I start investigating?+

A leak can be caused by several factors. Examine the joint between different sections of the roofing material for any gaps or damage, and check the flashing around chimneys or vents for cracks or displacement which could allow water ingress. Ensure the underlying surface is clean and dry before applying sealant if necessary.

The roofing material seems to be losing effectiveness after exposure to prolonged rain – what could be happening?+

Water penetration can occur due to compromised seals or damage to the material's surface. Inspect the edges and corners of the roofing material carefully for signs of wear, cracking, or deterioration; minor surface issues might be addressed with a suitable sealant designed for the material type.

The roofing material isn't draining properly after heavy rain – what’s likely blocking it?+

Blocked gutters and downpipes are a common cause of poor drainage. Ensure that gutters are free from leaves, twigs, and other debris; check the downpipe outlets aren't obstructed by anything and that they are clear of blockages preventing water flow.

I’ve noticed a build-up of moss on my roofing material; how does this affect its performance?+

Moss can reduce the effectiveness of your roofing material by creating a barrier to water flow and accelerating surface degradation. Gently remove moss using a soft brush or sponge – avoid scrubbing aggressively as this could damage the material’s surface. Consider applying a suitable treatment designed for removing moss from roofing materials, following manufacturer's instructions carefully.

My roofing material appears faded or discoloured; is this normal?+

Fading can occur due to prolonged exposure to sunlight. While some colour change is inevitable, excessive fading suggests the material isn’t adequately protected from UV radiation. Applying a protective coating specifically designed for your roofing material type may slow down further deterioration.

The surface of my roofing material feels rough to the touch; what might be causing this?+

A rough texture could indicate a build-up of dirt, grime, or weathering. Thoroughly clean the roofing material using a mild detergent and water, paying particular attention to textured surfaces – ensure it’s fully rinsed and dried before applying any protective coatings.

I've noticed some small cracks appearing in my roofing material; what are the likely causes?+

Cracking often results from movement within the material or exposure to extreme temperatures. Inspect the area around the cracks for signs of stress or damage, and ensure that fixings are still secure. Minor surface cracks can sometimes be addressed with a suitable sealant designed for roofing materials.

My roofing material isn’t performing as expected; is it possible the settings are incorrect?+

Many roofing materials have adjustable settings, although this is less common with simpler designs. Refer to the manufacturer's instructions for details on setting adjustments; ensure you understand the function of each adjustment before making any changes – if you are unsure, stop and consult a qualified professional.

In depth

Let’s start by addressing the most frequent concerns surrounding roofing materials, focusing on practical checks you can undertake yourself to identify and potentially resolve issues before seeking specialist assistance. It's important to remember that while these initial steps offer reassurance and may reveal simple solutions, any significant deterioration or safety concerns should always be addressed by a qualified professional.

One of the first problems homeowners encounter is complete inactivity – the roofing material simply won’t respond when activated. This could manifest as failing to initiate its primary function (e.g., starting a ventilation system, deploying shading mechanisms) or completely refusing to power on. The most common culprit here is usually a depleted battery if the product uses one, or a disconnected connection. Begin by confirming that the battery is securely fitted and charged, using the charger provided with the product. If it’s not rechargeable, check for any visible damage to the battery terminals – corrosion can prevent proper electrical contact. Similarly, inspect all cable connections carefully; ensure they are firmly plugged in and free from kinks or damage. A loose connection is a surprisingly frequent cause of unresponsive equipment. Next, verify that the power switch (if present) is fully engaged and hasn’t been accidentally left in the ‘off’ position. If you’ve recently moved the product, check for any obvious signs of movement causing a disconnection.

Another relatively common problem centres around reduced performance. Perhaps the roofing material isn't operating as effectively as it should – ventilation rates are lower than expected, shading coverage is diminished, or the overall function seems sluggish. Firstly, consider the environmental conditions. Extreme weather (high winds, heavy rain, intense sunlight) can significantly impact the efficiency of many roofing materials, particularly those designed for ventilation or solar shading. Ensure there’s no obvious blockage – debris such as leaves or bird nests accumulated around the product’s intake or output vents could be restricting airflow or light penetration. Carefully clean any visible obstructions using a soft brush or vacuum cleaner, paying particular attention to the vent openings and any sensors. Check that filters, if present (common in ventilation systems), are clean and haven't become clogged with dust or particles. Replacing dirty filters can dramatically improve performance.

Unusual noises emanating from your roofing material – rattling, buzzing, squeaking – should also be investigated. These sounds often indicate loose components or friction between moving parts. Visually inspect the product for any obvious signs of damage to its exterior panels or hinges. Gently shake the product to identify if any internal elements are vibrating excessively. If you detect a rattle, try locating the source by carefully tapping on the product’s surface. A simple adjustment – tightening a loose screw or applying a small amount of lubricant (specifically designed for outdoor use and suitable for plastic components) – might resolve the issue. However, persistent grinding or loud buzzing noises are indicative of more serious problems and warrant immediate professional attention due to potential damage to the mechanism or even electrical faults.

Leaks represent a significant concern with any roofing material, particularly those intended for weather protection. The initial step is to visually inspect the product’s exterior for signs of water ingress – staining, discoloration, or damp patches. Check all seams, joints, and seals carefully for gaps or damage. Look for evidence of moss or algae growth which can exacerbate leak problems by trapping moisture. Cleaning around the base of the product with a soft brush and mild cleaning solution might help remove accumulated dirt and debris that could be contributing to water penetration. If you identify any compromised seals, ensure they are properly seated and tightened. Be very cautious when inspecting areas where access is difficult or potentially dangerous – always prioritise your safety and avoid climbing onto the roof if you're not comfortable doing so. Any significant leak, especially one accompanied by standing water, requires immediate assessment by a qualified roofing professional.

Charging issues can also cause frustration for products employing battery systems. Start with confirming that the charger itself is functioning correctly; test it with another compatible device to verify its power output. Inspect the charging cable for any damage – cuts, fraying, or loose connections. Ensure the charging port on the product is clean and free from debris. Avoid using damaged cables, as they can pose a significant electrical hazard. If the product’s indicator light (if present) isn't illuminating during charging, it suggests an issue with the battery itself or the charging circuitry. Again, do not attempt to disassemble the product or work on its internal components – this could void any warranty and potentially create a safety risk.

Now let's consider situations where the roofing material fails to respond correctly to settings adjustments. This might involve incorrect sensor readings, inaccurate timer settings, or difficulties in adjusting shading angles. Begin by carefully reviewing the user manual to ensure you’re operating the product according to its intended design. Double-check that all settings are entered accurately and within the product's operational limits. Many roofing materials feature calibration functions – consult the manual for instructions on how to perform these calibrations, which often involve following a specific sequence of steps or using a test signal. If you’re unsure about any setting adjustments, it’s best to err on the side of caution and reset the product to its factory default settings before attempting further modifications.

Finally, if you notice a decline in performance coupled with intermittent operational failures, meticulously checking for dust accumulation around sensor areas is crucial. Many roofing materials rely heavily on accurate environmental readings – temperature, humidity, light intensity – to optimise their function. Dust buildup can significantly impede these sensors’ ability to gather reliable data, leading to inaccurate settings and erratic behaviour. Use a soft brush or vacuum cleaner with a low-power setting to gently remove any accumulated dust from the sensor housings and apertures. Avoid using harsh cleaning chemicals or abrasive materials that could damage the sensors. Regular cleaning is vital for maintaining optimal performance.

It's crucial to recognise when you’ve reached the limit of your ability to diagnose and resolve an issue effectively. Persistent problems, unusual noises, electrical faults, or any signs of structural damage should always be addressed by a qualified professional – a specialist roofing contractor or an engineer specialising in the product type. Attempting to repair complex mechanisms or electrical systems yourself can be dangerous and may invalidate any warranty. Prioritising safety is paramount, and seeking expert assistance ensures that your roofing material is repaired correctly and safely, preventing further damage or potential hazards. If you have any doubts whatsoever about the cause of the problem or your ability to resolve it safely, contacting a qualified professional should be your immediate action.