Residential Flat Roof Installations, Replacements & Re-Roofing
Not every home has a steep shingle roof. If your bungalow, garage, carport, sunroom or addition has a flat or low slope roof, it needs a roofing system designed to manage water, snow and Alberta's changing temperatures.
Iron Shield Roofing installs, repairs and replaces residential low slope roofing systems throughout Edmonton and the surrounding communities. From new construction to replacing old tar-and-gravel roofs, we'll help you protect your home with the right materials and installation.
Guard your castle with an Iron Shield.
Whether you're building an addition, replacing an aging roof or upgrading from tar and gravel to a modern membrane, our Edmonton roofing team can help.
We work with SBS modified bitumen, EPDM rubber roofing, PVC, TPO and traditional built-up roofing systems. The right choice depends on your roof's slope, drainage, structure, insulation and how the space below is used.
Your Home Deserves More Than Another Temporary Patch
A low slope residential roof might look simple, but the details matter. Water moves more slowly than it does on a steep roof, which makes proper drainage, seams, penetrations and flashing especially important.
Edmonton's heavy snow, spring melting, summer storms and repeated freeze-thaw cycles can expose weaknesses in an aging roof.
Our goal is to solve the underlying roofing problem rather than simply cover it up.
Whether your home needs a complete tear-off, a properly designed re-roof or a new membrane over an addition, we'll explain your options and help you make an informed decision.
Why Upgrade Your Low Slope or Flat Roof?
A flat roof doesn't have to be actively leaking to be ready for replacement. Many problems start beneath the surface long before water appears on your ceiling.
Common warning signs include:
- Water stains on ceilings or walls, especially after snowmelt.
- Cracked, blistered, split or loose roofing membranes.
- Standing water that remains long after rain or melting snow.
- Loose metal flashing around roof edges, chimneys or vents.
- Gravel washing away or exposed asphalt on an older built-up roof.
- Soft areas, damaged decking or suspected wet insulation.
- Ice buildup around drainage points and roof edges.
- Repeated repairs that never seem to fix the same leak.
Some roofs can be repaired. Others have reached the point where replacement makes better sense.
We'll assess the existing system, look for possible sources of water entry and explain whether a repair, partial replacement or complete re-roof is appropriate.
Our Residential Low Slope & Flat Roofing Process
We make residential roofing projects straightforward, from the first conversation to the final cleanup.
- Free Roofing Estimate
We review your roofing project, assess the existing conditions as needed for the estimate and discuss your options. Dedicated leak investigations and condition inspections are separate services. - Detailed Written Quote
You'll receive a clear scope outlining the proposed roofing system, insulation, drainage considerations, flashing work and any identified repairs. - Tear-Off & Preparation
When removal is required, we take off the existing membrane or tar-and-gravel assembly and examine the exposed deck. Damaged decking and wet insulation are addressed as needed, with wet insulation priced according to the individual project. - Professional Roof Installation
We install the approved roofing assembly, including the applicable insulation, membrane, seams, penetrations and perimeter details. Standard sheet-metal flashing is 26 GA, with other specifications used where the design requires them. - Final Inspection & Warranty
We review the completed work, clean up the property and explain the applicable workmanship and manufacturer warranty coverage.
Why Choose Iron Shield Roofing?
Flat Roofing Is Our Specialty
Low slope roofs require different installation methods than steep asphalt shingle roofs. Our team understands membrane roofing, vapour control, drainage, edge details and the conditions that make residential flat roofs challenging.
Trusted Products, Proven Techniques
We work with established roofing manufacturers including Soprema, Carlisle SynTec, Elevate and IKO. Iron Shield Roofing is an IKO Commercial Approved Applicator and an IKO ROOFPRO Select contractor. Applicable IKO Diamond Shield warranty options depend on the system and eligibility requirements.
Customer-First Service
It's your home, not a construction site that happens to have furniture inside. We plan material delivery, property access, tear-off and cleanup with your household in mind.
Local & Reliable
Our Edmonton roofing team serves homeowners throughout Edmonton, St. Albert, Sherwood Park, Spruce Grove, Leduc, Fort Saskatchewan and surrounding communities.
Get a Free Residential Low Slope Roofing Quote in Edmonton
Have an older bungalow with a gravel roof? Building a garage or sunroom? Tired of watching the same ceiling stain return every spring?
Iron Shield Roofing can help with new low slope roof installations, replacements, re-roofing and conversions from aging tar-and-gravel systems.
Tell us about your home and we'll help determine the next step.
Call (780) 758-7663 or request your free roofing quote online.
Guard your castle. We'll handle the roof.
Signs Your Low Slope or Flat Roof Needs Attention
Some residential flat roofing problems are obvious. A leak over the kitchen or water running down an interior wall is hard to ignore.
Other problems develop gradually.
Water can enter around an aging roof edge, drain, vent or flashing detail and travel before becoming visible indoors. Moisture beneath the membrane can also affect insulation and roofing materials without immediately producing a ceiling stain.
Edmonton homeowners should pay particular attention after major snowmelt, heavy rainfall and hailstorms. Never climb onto a snow-covered, icy or visibly damaged roof to investigate.
A professional roof inspection can help identify the source of a problem and determine whether repairs are practical. Roof inspections and leak investigations are paid services, separate from replacement estimates.
The following situations are signs that your roof may be having problems:
Increasing utility bills
Wet or deteriorated roof insulation can reduce thermal performance, although higher bills can have several causes.
Drafts or gusty parts of the building
Air leakage near ceilings, roof transitions and penetrations may indicate problems with the air barrier or surrounding construction.
Indoor humidity
Persistent condensation or dampness near ceilings can signal ventilation, vapour control or moisture problems that need investigation.
Temperature changes throughout the building
Rooms below an older flat roof may feel unusually cold in winter or warm in summer because of insulation or air-sealing deficiencies.
Pest infestations
Gaps around damaged soffits, fascia, vents or roof edges can create entry points for birds and other pests.
Leaks
Water stains, peeling paint, damp drywall or repeated dripping during thaw periods deserve prompt attention.
Unusual sounds from overhead
Unexpected movement or sounds, particularly when accompanied by sagging or other visible changes, should be assessed. Excessive snow accumulation or suspected structural distress requires qualified evaluation.
Low Slope & Flat Roofing Systems for Edmonton Homes
A residential flat roof is more than its visible outer membrane. The complete assembly may include a vapour barrier, insulation, cover board, waterproofing membrane, flashings and drainage components.
The best system depends on your home's construction, existing roof layers, slope, drainage and exposure to Edmonton's weather.
We offer five roofing system options and can explain which are appropriate for your property.

SBS Modified Bitumen Roofing for Edmonton Homes
SBS modified bitumen is one of our preferred solutions for residential low slope roofs.
It's particularly well suited to flat-roof bungalows, attached garages, additions, carports and older homes that need a reliable replacement for worn tar-and-gravel roofing.
A typical SBS assembly uses two layers of reinforced, rubber-modified asphalt membrane. The base sheet provides an additional waterproofing layer, while the granulated cap sheet protects the system from weather exposure.
Why homeowners choose SBS:
- A tough, multi-layer waterproofing system.
- Flexibility in cold temperatures and during seasonal movement.
- Granulated surfaces that provide protection against UV exposure and weathering.
- Suitable detailing for roof edges, vents, drains and wall transitions.
- Repairable membrane systems when properly assessed and maintained.
SBS systems can offer good protection against Alberta hail, although impact performance depends on the complete assembly and severity of the storm.
For an older Edmonton bungalow, replacing a deteriorated gravel roof with a properly designed SBS system can also be an opportunity to improve insulation, drainage and flashing details.
We install appropriate Soprema and IKO SBS roofing systems according to project specifications and manufacturer requirements.

EPDM Rubber Roofing for Low Slope Residential Roofs
EPDM is a synthetic rubber roofing membrane that remains flexible through hot summers and cold Alberta winters.
It can be an effective choice for residential additions, garages, carports and certain flat-roof homes, especially where a lightweight single-ply membrane is suitable.
Advantages of EPDM roofing:
- Excellent flexibility during expansion and contraction.
- Resistance to normal outdoor weather exposure.
- Suitable for simple roof shapes and properly detailed penetrations.
- Available in systems that can reduce the number of field seams.
- Can be repaired using compatible materials and manufacturer-approved methods.
EPDM systems commonly use black membranes, although other options may be available.
For Edmonton homeowners, the supporting insulation and cover board matter as much as the membrane. Hail resistance depends on the full assembly, and the system must be designed to manage drainage and snowmelt.
Iron Shield Roofing works with established EPDM manufacturers including Carlisle SynTec and Elevate.

PVC Roofing for Modern Flat-Roof Homes
PVC is a single-ply roofing membrane with heat-welded seams. It's an option for selected residential flat roofs, particularly modern homes, additions and roof designs where a reflective surface is desirable.
PVC membranes are available in light-coloured finishes that can help reduce solar heat absorption during sunny Alberta summers.
Benefits of PVC roofing:
- Heat-welded seams create durable, watertight connections when properly installed.
- Reflective membrane options help limit summer roof surface temperatures.
- Suitable for certain modern low slope residential designs.
- Resistance to a range of chemicals and weather exposure.
- Compatible accessories for detailing roof penetrations and edges.
PVC isn't automatically the right choice for every bungalow or garage. Roof configuration, attachment method, insulation and compatibility with existing materials all need consideration.
In Edmonton, we also assess how the proposed assembly will respond to cold temperatures, hail and repeated freeze-thaw conditions.

TPO Roofing for Residential Low Slope Applications
TPO is another single-ply membrane option used on flat and low slope roofs.
It's typically light coloured and uses heat-welded seams to join membrane sheets, making it suitable for certain contemporary homes, garages and additions.
Why consider TPO?
- Reflective finishes help reduce summer heat absorption.
- Heat-welded seams provide a strong waterproof connection.
- Suitable for appropriately designed low slope residential assemblies.
- Available in different membrane thicknesses and installation configurations.
- Can be combined with appropriate cover boards for added protection.
TPO must be installed over a properly prepared substrate with compatible materials and carefully detailed perimeter edges.
Hail performance varies by membrane thickness, cover board and assembly design. No membrane should be considered hail-proof.
For Edmonton homeowners, we'll assess whether TPO offers the right balance of durability, appearance and installation requirements for the particular roof.

Tar-and-Gravel Roofing & Residential Roof Conversions
Many older Edmonton bungalows, garages and mid-century homes still have traditional tar-and-gravel roofs.
Built-up roofing uses multiple layers of asphalt and reinforcing felts, with gravel protecting the surface from sunlight and weather.
When properly maintained, these roofs can provide dependable service. However, older assemblies may develop cracking, moisture problems, drainage issues or deteriorated flashing.
What homeowners should know:
- Gravel protects the roof but can make some membrane defects harder to locate.
- Wet insulation and deteriorated decking can remain hidden below the surface.
- Drainage problems should be corrected rather than covered with another roofing layer.
- Existing built-up roofing may sometimes be repaired or recovered when conditions and applicable requirements allow.
- A complete tear-off provides access to inspect the underlying assembly.
For homeowners ready to replace an old gravel roof, we commonly evaluate modern two-ply SBS systems alongside other compatible membrane options.
We can also install built-up roofing when the roof design and project requirements call for it.
The goal is not simply to exchange gravel for a new colour. It's to deliver a properly designed waterproofing system for the home.
About Iron Shield Roofing
Iron Shield Roofing provides residential, commercial and multi-family roofing services throughout Edmonton and the surrounding region.
Our residential low slope roofing work includes existing homes, new construction, garages, additions, porches, sunrooms and more complicated roof transitions.
We understand that roofing a home requires attention to the details people don't usually see: drainage, vapour control, insulation, flashing, membrane attachment and the condition of the existing roof deck.
Our team installs systems from Soprema, Carlisle SynTec, Elevate and IKO, with workmanship and manufacturer warranty options appropriate to the roofing assembly.
And yes, we'll explain what we're installing without making you learn an entirely new roofing vocabulary.
1. We Work On Roofs Of Any Size
A small garage roof deserves the same attention to waterproofing as the main roof of your home.
We install and replace roofing on flat-roof bungalows, detached garages, carports, porches, dormers, additions, sunrooms and larger residential properties.
Some roofs have straightforward layouts. Others involve difficult access, multiple elevations, skylights, chimneys, internal drains or transitions between sloped shingles and flat membranes.
We'll assess the details and recommend a roofing approach suited to the property.
2. We Offer Durable Materials That Make Sense for Your Home
Replacing a residential flat roof is an investment, so the right choice should consider more than the visible membrane.
We look at the roof's age, existing assembly, insulation, drainage and expected maintenance needs before recommending a system.
Our options include SBS modified bitumen, EPDM, PVC, TPO and traditional built-up roofing.
We'll explain the advantages and limitations of each applicable option, including whether a complete tear-off or a properly designed recover makes more sense.
The objective is a dependable roof that suits your home and avoids unnecessary work.
3. Enjoy Our Workmanship Warranty
Iron Shield Roofing stands behind its installation work with defined workmanship warranty options:
- Defender — 10-Year Workmanship Warranty
- Protector — 15-Year Workmanship Warranty
- Guardian — 20-Year Workmanship Warranty
Applicable warranty availability and coverage depend on the agreed roofing scope and warranty terms.
Manufacturer warranties are separate and may provide additional coverage depending on the products, complete system and project eligibility.
We'll explain the applicable workmanship and manufacturer warranty options before your project begins.
Protect Your Home with Iron Shield Roofing
A flat roof should be something you can depend on, not something you worry about every time the snow starts melting.
Whether you're maintaining an older Edmonton bungalow, planning a home addition or replacing a garage roof, Iron Shield Roofing is here to help.
We provide residential low slope roof installations, repairs, replacements and assessments, with practical advice and workmanship focused on the details that matter.
Need a new roof? We'll help you find the right system.
Not sure what's wrong with the current one? Ask about our professional roof inspection services.
Call (780) 758-7663 or request a roofing quote online.
Iron Shield Roofing — Guard your castle.
Residential Low Slope Roofing Across Edmonton & Area
Iron Shield Roofing serves homeowners throughout the Edmonton region, including:
Low Slope & Flat Residential Roofing in Edmonton — Frequently Asked Questions
What is the best roofing material for a low slope house in Edmonton?
Two-ply SBS modified bitumen is often a strong choice for Edmonton homes because of its flexibility, layered waterproofing and suitability for cold-weather conditions. EPDM, PVC and TPO may also be appropriate depending on your roof's design. The right system depends on slope, drainage, insulation, roof structure and how the roof will be used.
Can you replace an old tar-and-gravel roof on my bungalow?
Yes. We work on older residential tar-and-gravel roofs and can replace them with a modern membrane system, including SBS roofing where appropriate. We assess the existing layers, decking, insulation and drainage before recommending a tear-off or recover.
Can asphalt shingles be installed on a low slope roof?
Only within the minimum slope and installation requirements of the specific shingle product and applicable building code. Roofs below those limits generally need a suitable low slope membrane system. We assess the actual roof pitch before recommending materials.
Do flat residential roofs hold too much snow in Edmonton?
Flat roofs are designed to carry snow loads appropriate to their structure and code requirements, but excessive accumulation and drifting can create concerns. Roofing membranes do not increase the structural capacity of an existing roof. If you notice sagging, unusual movement or other signs of distress, arrange a qualified structural assessment. Avoid climbing onto an icy roof.
Can my flat roof be replaced during Edmonton's winter?
Certain roofing repairs and installations may be possible during suitable winter conditions, depending on the membrane system and manufacturer requirements. Temperature, ice, snow, moisture and adhesive limitations all affect the work. We schedule full replacements around appropriate installation conditions whenever possible.
How long does residential flat roof replacement take?
The schedule depends on roof size, access, weather, removal requirements and any deck or insulation repairs. A straightforward garage roof may involve less work than a bungalow with several roof levels and complicated drainage. We'll review the anticipated schedule with you before construction.
Can you install a new roof over my existing flat roof?
Sometimes. A recover may be possible when the existing assembly is dry, stable, compatible and permitted by applicable requirements. If insulation is wet, the membrane is badly deteriorated or the existing layers are unsuitable, removal may be necessary. We don't recommend trapping existing moisture beneath a new roof.
What causes ponding water on a residential flat roof?
Common causes include inadequate slope, low spots in the deck, blocked drainage, settlement and poorly located drains or scuppers. Some temporary standing water after rainfall is normal, but persistent ponding should be investigated. Tapered insulation or drainage modifications may be possible during replacement.
How much maintenance does a low slope residential roof need?
Homeowners should monitor visible roof edges, drainage outlets and signs of leaks, especially after major storms and snowmelt. Professional inspections can identify loose flashing, membrane damage and drainage concerns before they develop into larger problems. Maintenance requirements depend on the roofing system and applicable warranty terms.
What warranties are available for residential flat roofing?
Iron Shield Roofing offers Defender 10-year, Protector 15-year and Guardian 20-year workmanship warranty options, subject to the project and applicable terms. Manufacturer warranties may also be available through eligible roofing systems. We explain the specific coverage, exclusions and maintenance requirements before installation.



