Flat Roof Replacement Glasgow
Flat Roofs Glasgow
Revitalize Coatings Ltd has a wide range of flat roof replacement options on offer for homeowners in Glasgow, Edinburgh, Ayrshire, Fife and Central Scotland.
These days there are lots of flat roofing systems you can use to replace your homes flat roof surface. If you have an old felt flat roof, metal roofing or an asbestos coated surface that needs to be safely sealed or replaced with a more modern solution such as metal cladding or EPDM Firestone Rubber roofing.
Old felt flat roofs, metal cladding and asbestos flat roofs are the most common type of flat roof replacement homeowners in Glasgow and Central Scotland tend to be looking for.
This can be for all types of flat roof surfaces found on your home such as extensions, outdoor garden buildings, garages, ledges and other areas.
Flat roof replacement is a specialist area of roofing, using a particular process to remove your existing flat roofing material.
This will likely happen on at least one occasion over the years. Flat roofs, especially old felt, cheap and outdated EPDM rubber or roofs with asbestos sheets can all become worn out, no longer performing efficiently, meaning it’s time to replace.
Flat roofs are commonly found on garages, extensions, outdoor garden buildings, and some modern homes found in Glasgow, with combined roofing slopes and solutions for various property expansions.
Due to their minimal pitch (usually less than 10°), flat roofs are more prone to water pooling, leaks, and damage over time compared to pitched roofs, meaning they require certain types of materials to be used such as EPDM Firestone Rubber.
Prompt Flat Roof Replacement
Our team can replace your flat roof in swift fashion, anywhere in Central Scotland.
5 Star Rated
Our team are 5 star rated by dozens of satisfied customers for our new roofs, flat roofing, coatings and exterior renovations.
Protection From Elements
Roughcasting provides maximum protection from the harsh Scottish weather including strong winds, rain and snow.
Zero Damp or Moss
When installed properly, roughcast will protect your home from damp including any growth of moss, algae or lichen etc.
Extra Insulation
Roughcast render provides an extra layer of insulation on your homes walls.
Zero Maintenance
Properly installed roughcasting can last over 30 years with very little maintenance requirements other than occasional cleaning.
What Is Flat Roof Replacement
Flat roof replacement is the process of removing an old or damaged flat roofing system and installing a new one. Flat roofs, which are commonly used on extensions, garages, garden rooms and other structures, typically have a slight slope to allow water drainage. Over time, these roofs can suffer from issues like leaks, cracks, water pooling, and general wear and tear due to weather exposure.
Replacing a flat roof helps protect the structure, improve energy efficiency, and reduce the risk of costly repairs in the future.
Signs You Need To Replace Your Flat Roof
Here are some common signs that your flat roof may need replacing:
Persistent Leaks
If you’re regularly dealing with water dripping from the ceiling or finding puddles inside after rain, it may indicate that the waterproofing layer on your flat roof has failed.
Cracks, Blisters, or Splits in the Surface
Flat roofs can develop visible damage like cracks or air bubbles (blisters) in the material. These are often caused by trapped moisture or long-term exposure to the sun and elements.
Ponding or Pooling Water
Water that sits on your flat roof for more than 48 hours is called “ponding.” It can lead to structural damage, leaks, and deterioration of roofing materials.
Sagging Areas or Uneven Surfaces
If parts of the roof appear sunken or sagging, it may mean the underlying structure is rotting or weakened and needs immediate attention.
Mould, Mildew, or Damp Inside
Moisture from a failing flat roof can cause damp patches, mildew, or mould growth on walls and ceilings inside your property.
Frequent Repairs
If you’re calling in roofers repeatedly to patch up problems, it might be more cost effective to replace the whole roof.
Roof is Over 25 Years Old
Most flat roofs have a limited lifespan depending on the material used:
Modern Felt Flat Roofs: ~Up to 15 years
EPDM Firestone Rubber Flat Roofs: ~25 years to 50 years.
GRP (Fibreglass): ~20 to 30 years
If your roof is near or past its expected life, a full replacement is usually the best option.
Benefits Of Flat Roof Replacement
If you’re considering flat roof replacement in Glasgow or Central Scotland, Replacing a flat roof offers a range of practical, financial, and aesthetic benefits, especially if your current roof is leaking, outdated, or inefficient.
Listed below are the main benefits of replacing your flat roof with a modern solution:
Improved Waterproofing
Modern flat roofing materials like EPDM, GRP (fibreglass), and PVC membranes offer superior resistance to water penetration. Replacing an old or leaking roof ensures a watertight seal, preventing structural damage and damp issues inside your property.
Increased Energy Efficiency
New flat roofs often include upgraded insulation, which helps regulate indoor temperatures more effectively. This can lower heating bills and reduce your carbon footprint, making your home more environmentally friendly and cost efficient.
Enhanced Structural Integrity
Old flat roofs may suffer from rotting timbers, sagging, or trapped moisture. Replacing your flat roof allows for a full inspection and repair of the decking and supports, improving the overall safety and longevity of your property.
Long-Term Cost Savings
While a replacement can seem costly upfront, it eliminates the recurring expense of patch repairs. New flat roofing systems typically last 20 to 30 years with minimal maintenance, making it a solid long term investment.
Modern Appearance
New materials offer a sleek, clean finish that can enhance the appearance of extensions, garages, or even commercial buildings. Some systems also allow for custom colours or finishes to match your design.
Warranty Protection
Most professional flat roof replacements come with a manufacturer or installer warranty (often 20 to 25 years), giving you peace of mind and protection against defects.
Better Drainage and Design
A new flat roof can be built with improved slopes, drainage systems, or even accommodate green roofing or solar panels, adding more functionality to your space.
Firestone Rubber Flat Roofing
EPDM Firestone rubber flat roofing is a highly durable and 100% waterproof roofing solution made from ethylene propylene diene monomer (EPDM), a synthetic rubber material. EPDM Firestone rubber is one of the leading brands in the industry, known for producing high quality EPDM membranes that are ideal for flat and low slope roofs. This type of roofing is lightweight, flexible, and can withstand extreme temperatures, UV rays, and harsh weather conditions without cracking or shrinking. It’s typically installed in large, seamless sheets, which greatly reduces the risk of leaks. The material is also low maintenance and has a long life expectancy, often over 25 to 30 years when properly installed.
EPDM Firestone rubber roofing is an environmentally friendly choice as well, being fully recyclable and offering excellent insulation benefits. It’s a popular option for both residential extensions and commercial buildings, due to its combination of performance, longevity, and cost effectiveness.
YouTube video from Rubber4Roofs, showing how to best install an EPDM Firestoner Rubber Flat Roof
How To Install an EPDM Firestone Rubber Flat Roof
Installing an EPDM Firestone rubber flat roof involves several steps and should be done carefully to ensure a watertight, durable finish.
Here’s a step by step guide to ensure a successful Firestone Rubber Flat Roof installation:
Step by Step Rubber Flat Roof Installation Guide:
Prepare the Roof Deck
Ensure the surface is clean, dry, and free from debris or sharp objects. The deck should be made of plywood or OSB with no major gaps or rot.
Lay Out the EPDM Membrane
Unroll the EPDM rubber and allow it to “rest” for about 30 to 60 minutes. This helps the material relax and reduces wrinkles. Make sure it overhangs the edges slightly.
Apply the Adhesive
Fold the membrane back halfway (lengthwise). Apply water based adhesive to the roof deck using a roller or brush.
Wait until the adhesive becomes tacky (not wet) before laying the rubber back down. Smooth the rubber into place using a broom or squeegee to remove air bubbles.
Repeat for the other half of the membrane.
Secure Edges and Corners
Use contact adhesive around edges, upstands, and corners where water-based adhesive is not suitable. Trim any excess EPDM with a utility knife.
Install edge trims or termination bars to seal and secure the perimeter.
Seal Joints and Penetrations
If your roof requires seams, apply EPDM primer and Firestone seam tape. Press seams together firmly and roll over with a seam roller.
Flash any pipes, skylights, or other penetrations using appropriate EPDM flashing kits.
Final Check
Inspect the entire surface for wrinkles, bubbles, or missed edges. Ensure water will drain properly (slight fall recommended). Do a light water test if necessary after full curing.
Benefits Of Firestone Rubber Flat Roof Systems
Replacing your flat roof with a Firestone rubber (EPDM) roofing system specially Firestone rubber cover, comes with many benefits that improve the durability, efficiency, and overall performance of your property. Here’s a list of why opting for a EPDM Firestone rubber flat roof replacement is a smart choice:
Exceptional Durability
Firestone EPDM membranes are made from synthetic rubber that resists cracking, tearing, and weathering.
Withstand UV rays, ozone, frost, and temperature extremes without degrading.
Long Lifespan
Offers an expected lifespan of 50 years with minimal maintenance.
Far outlasts traditional felt roofs and many other flat roofing systems, with a 25 year product guarantee.
Superior Waterproofing
Installed in large, seamless sheets, reducing the risk of water ingress.
Adhesive based application ensures a watertight seal even around corners and penetrations.
Hassle Free Installation
Cold applied (no open flame required), making installation faster and safer.
Lightweight material that reduces structural load.
Low Maintenance
Requires very little upkeep, just occasional inspection and cleaning.
Naturally resists moss, algae, and root intrusion.
Proven Performance
Firestone has installed over 1.5 billion m² of EPDM roofing worldwide.
Backed by a solid reputation and robust warranties.
Cost Effective in the Long Run
Though the initial cost may be higher than felt, its low maintenance and long service life make it highly economical.
Fewer repairs and replacements will be needed over time.
Common Issues with Felt Flat Roofs
Felt flat roofs are a more traditional and in 2025, becoming an outdated flat roofing option, they often come with several common issues, especially as they age or if they’re poorly installed. Here’s a breakdown of the most frequent problems associated with felt flat roofing:
Cracking and Splitting
Over time, exposure to sun, frost, and rain can cause felt to become brittle and develop cracks or splits.
These openings allow water to seep through and damage the underlying layers or structure.
Water Ponding
Flat roofs must have a slight slope to allow water to drain.
Poor design or sagging can lead to standing water, which puts stress on the felt and increases the risk of leaks and structural issues.
Leaks and Water Ingress
Damaged seams, blistering, or lifted edges often result in leaks.
Moisture can cause rot in the timber structure or lead to mould growth inside the building.
Blistering and Bubbling
Moisture trapped under the felt or poor ventilation can lead to blisters (raised bubbles).
These weaken the membrane and eventually lead to splits or holes.
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Shorter Lifespan
Most felt roofs last 10 to 15 years, which is significantly shorter than EPDM rubber, GRP (fibreglass), or metal roofing systems.
Frequent repairs may be needed toward the end of its service life.
.
Poor Aesthetics
Felt roofs can become worn, discoloured, or patchy, especially if frequently repaired.
Not ideal for visible areas like home extensions or porches.
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Should You Replace Your Felt Roof?
If your felt flat roof is leaking regularly, showing signs of age, or ponding, it might be worth upgrading to a more modern flat roof system like:
EPDM rubber roofing (e.g. Firestone Rubber Cover)
Torch-on mineral felt with better durability
.
Felt Flat Roof Replacement Glasgow
Felt flat roof replacement in Glasgow is a fairly common requirement, due to felt roofing materials not lasting as long as other flat roofing surfaces, especially felt that was used from over 20 years ago.
Our team at Revitalize Coatings Ltd can ensure you get a cost effective solution when looking to restore or upgrade your aging flat roof system. Traditional felt roofs, while affordable, typically have a lifespan of only around 10 to 15 years, flat roofs can deteriorate over time due to exposure to the elements, especially in the Scottish climate.
When cracks, splits, leaks, ponding water, or blistering begin to appear, it’s usually a sign that a full felt flat roof replacement is required rather than just repairs. Replacing a felt flat roof involves stripping away the old roofing material and installing a new system generally made of high performance EPDM rubber or bitumen based membranes, applied using a torch-on method. These new flat roof systems offer significantly improved waterproofing, greater resistance to thermal movement, and a smoother, cleaner finish.
The installation process, when done professionally, is relatively quick and suitable for a variety of buildings such as extensions, garages, porches, and commercial units. Modern torch-on felt roofing also requires minimal maintenance and is more resilient against foot traffic compared to older systems. Some installations may also incorporate upgraded insulation beneath the felt, improving the energy efficiency of the property and potentially reducing heating bills. With proper care and regular inspections, a new felt flat roof can last between 15 to 25 years. We can also replace your felt flat roof with long lasting EPDM Firestone rubber roofing.
Refelting Flat Roofs Glasgow
Refelting flat roofs is the process of renewing or replacing the felt membrane on a flat roof to restore its waterproofing and structural integrity. Over time, felt roofing can degrade due to exposure to UV rays, temperature changes, moisture, and general wear and tear. Common signs that a flat roof needs refelting include leaks, visible cracks or blisters, pooling water, and general aging of the surface.
The refelting process typically involves removing the old felt layers, repairing any damaged decking or insulation underneath, and then applying new layers of felt using a torch-on method or cold adhesive, depending on the type of felt. Modern torch-on systems often include two or three layers: a base layer, a reinforced underlay, and a mineral finished top layer that offers protection from UV and weather.
Refelting flat roofs is commonly done on garages, extensions, porches, and commercial roofs. When installed professionally, a refelted flat roof can last 15 to 25 years, offering a cost effective solution for restoring performance without switching to a more expensive system like EPDM or fibreglass.
Torch-On Felt Roof Replacement
Torch-on felt roof replacement is a popular and durable method of renewing a flat felt roof using heat applied bitumen based felt membranes. This roofing system is ideal for replacing older, damaged felt roofs that are leaking, cracked, or have reached the end of their lifespan.
Benefits of Torch-On Felt Roof Replacement
*Waterproof: Seamless, bonded layers create a highly water resistant surface.
*Durable: Lasts up to 25 years with proper installation and maintenance.
*UV resistant: Mineral surface protects from sun damage.
*Cost effective: More affordable than GRP or rubber, yet longer lasting than traditional felt.
*Versatile: Suitable for garages, extensions, porches, and commercial buildings.
Things to Consider
*Requires professional installation due to open-flame application.
*Not as environmentally friendly as EPDM rubber or green roof systems.
*Best installed in dry, mild weather for optimal adhesion.
Flat Roof Replacement Cost Glasgow
Along with product information and details regarding their specific needs, often one of the first things homeowners in Glasgow ask when searching for a flat roof replacement, is a rough idea of the expected cost.
Although we understand people want this type of home improvement completed for as competitive a price as possible, the exact cost depends on various factors, such as your flat roof surface area, the existing roof condition and your chosen material.
Flat roof replacement in Glasgow starts at around £2,500, for smaller surfaces that require for a more straight forward replacement.
To get a more exact cost to consider, its best to have ahome survey completed to discuss your options.
The companies offices are based in Glasgow, for flat roof replacement our installers and surveyors will travel across most of Scotland, including Argyll and Bute, Ayrshire, Clackmannanshire, Dumfries and Galloway, Dundee, East Dunbartonshire, East Lothian, Edinburgh, Falkirk, Fife, Glasgow, Greenock & Inverclyde, Lanarkshire, Paisley & Renfrewshire, Perth & Kinross, Stirling, The Borders, West Dunbartonshire and West Lothian.