Tag Archives: flat roofing

Preparing your Flat Roof for Winter

As summer winds down and the leaves prepare to start falling, now is a good time to have your commercial or industrial flat roof inspected for possible problems. If you haven’t started preparing your flat roof for its battle with winter, now is the time to begin.

By the time the first snowfall hits the ground, our phones will be ringing off the hook with customers calling us because their roof is leaking and water damage is starting to occur on the inside of the building.Why wait until this happens? Problems like this can be avoided with just a simple roof inspection by a licensed flat roof specialist.

Flat Roof Inspections

Getting your flat roof inspected by a licensed professional before the winter begins is as simple as picking up the phone and calling Roof Maintenance.ca. No matter if your commercial or industrial building is located in Mississauga, Oakville, Brampton or anywhere in the Greater Toronto Area, we can come on site and give your flat roof a thorough inspection for any potential problems. Using thermal imaging technology, we inspect your roof with infrared roof scans to detect subsurface moisture and pinpoint any leaks to its origin. Detecting and repairing and problems that pose threats to your flat roof fixed before winter is not only smart, it helps prevent serious damage, saving you money in future costly repairs.

Roof Leak Investigations

Quite often, when you notice water leaking into your building, the damage has already been done to the underlying structure. Water can take its time and pool up under the damaged areas on the roof, eating away at the structure until it finally breaks free and starts to leak inside. This only leads to costly structural repairs and replacement of insulation and waterproofing membranes.

We often get calls from commercial industrial property owners complaining that water is leaking onto inventory or machinery from the roof overhead. When we arrive to have a look at the problem, we often find the flat roof has either been poorly maintained or installed with low quality workmanship. We also find that the leak has been present for some time, and some of the roof trusses are rotten or the flat roof decking has completely rusted or given way resulting in the need for the total replacement of the roof. Had the property owner invested in a roof maintenance plan, these issues would have been noticed and the problem would have been fixed before it got out of hand. Instead, thousands of dollars are required to repair the structure and replace the entire roof.

Your Final Roofing Solution

Roof Scan.ca | Commercial Industrial Flat Roofing
Roof Scan.ca | Commercial Industrial Flat Roofing

At Roof Maintenance.ca, when we remediate a flat roof, we always give you the option in upgrading your current roof to a more durable and longer-lasting alternative. The cost of the inspection is relatively minor compared to the total cost of repairs when damage has occurred. Not to mention the savings in your sanity by not having to deal with your insurance company over the damage that may occur when a leak is left too long. Have your roof inspected before the winter rolls in. Schedule an appointment today for free consultation and the highest quality commercial and industrial flat roofing services in the Greater Toronto area.

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Roof Scan.ca Acquired by Roof Maintenance.ca

In a push to provide the Greater Toronto Area with the highest quality commercial and industrial flat roofing services available, Roof Maintenance.ca has acquired ownership of infrared flat roof inspection expert and industrial roofing contractor Roof Scan.ca. This unification of companies will create the most effective commercial and industrial roofing services the Greater Toronto Area has to offer. Roof Maintenance.ca will remain the parent company but the companies will remain separate.

Roofing Contractors

“The roofing industry has changed from what was a battle between a handful of roofing companies to hundreds of roofing companies within the Greater Toronto Area. Working together with Roof Scan.ca, we can drive innovation, set new standards for quality roofing and restore confidence to property owners who have experience failed roofs.”

– Alex Murdza, President of Roof Maintenance.ca

Roof Maintenance.ca is a leader in the Toronto roofing industry for its commitment to high quality roofing. With over 15 years of flat roofing experience and thousands of satisfied customers, the acquisition of Roof Scan.ca adds specialty infrared roofing experience to a team of highly trained roofing experts in flat roof leak repair, flat roof replacement, roof-top equipment installation, skylight services, and commercial waterproofing.

For more information on the roofing services provided, visit www.roofmaintenance.ca and www.roofscan.ca.

Bad Flat Roof

Common Flat Roofing Errors to Avoid

Why, despite the knowledge, decades of experience in the design and construction of flat roofs and the use of increasingly sophisticated materials, do flat roofs still bring doubts and worries to many property owner’s minds? The answer to this question lies in these three factors: Design, Construction and Operation.

Very common flat roof problems stem from poor maintenance or a complete lack thereof. Regular maintenance requires flat roofs to be periodically inspected for damage, repaired, cleaned and checked for the functionality of its insulation and waterproofing properties.

Design

Design Errors

The cycling through hot and cold seasons deteriorates flat roofs across the Greater Toronto Area year after year. On the surface of a flat roof, temperatures can range from -30 to +80 ° C. They are also exposed to UV (ultraviolet) radiation and several cycles of freezing and thawing. Therefore, the nature and properties of the materials from which the flat roof will be made and insulated with should ensure functionality under these conditions for at least 15-20 years.

Leaks, roof moisture and fungus are the most visible consequences of imporoper maintenance. Poor insulation promotes heat from escaping through the layers of roofs leading to leaks and flooding from melting ice and snow. This process becomes detrimental to the flat roof and leads to the deterioration and destruction of the membrane, flashings, gutters, downsputs, and melting or falling icicles that add danger your workplace.

Construction

Thermal Insulation

Each type of roof should have carried out calculations of temperature and moisture. The aim is to not only select the correct thickness of thermal insulation, but also eliminate the possibility of condensation between the layers of the roof and eliminate conditions conducive to the growth of mold on the ceiling and walls on the inside. These calculations take into account the space around windows, skylights, roof hatchways, etc. These are the places where freezing frequently occurs and are favorable conditions for mold growth. With inadequate ventilation, steam and moisture within the layers cause separation and can be seen visually on the ceiling and wall in the form of streaks and peeling paint coating, which are tell all signs of weakness in the roof’s waterproof seal.

Waterproofing

This layer on every flat roof, regardless of its function is crucial. The most common cause of leaks is due to errors by the contractors: lack of knowledge of the technologies used and the lack of a qualified team of employees.

Approaching the problem from the exterior (the “positive side”) seems to make the most sense to many people. It takes a considerable amount of labor to dig down to the base of your foundation wall. Once excavated, any areas in the roof decking or concrete foundation or walls that have been compromised can be repaired with a new waterproofing membrane.

Waterproofing Toronto flat roofs and foundations and detecting any flat roof problems early can help extend the service life of a flat roof for many years.

Substitution of Materials

A common mistake is to use “just as good but cheaper” alternatives or materials other than those provided by the manufacturer or chosen and described in the project documentation. The resulting “savings” for the difference in price of material is usually superficial and disproportionate to the cost of any subsequent repairs.

Equipment Technology

Proper execution of waterproofing usually depends on the use of special equipment. The waterproofing layers can can be mechanically fastened and connected to factories, glued or welded with hot air, fumes, flame or heat-sealed and require the use of different types of equipment. Overheating of the burner flame can cause weight loss in the asphalt’s insulating properties and can be made “stale”. This risk is virtually removed with the use of insulating materials welded by hot gases or hot air. Welding temperatures in this case are too low to permanently damaged the roof waterproofing material.

Operation

Roof-top Equipment

Some property owners believe that the purpose of the roof, due to the fact that it is flat can be freely changed. Ventilation, HVAC units, television antennas and other rooftop equipment are connected via an internal installation carried out through the ceiling or attic, through which the lead wires are often randomly located. Each of these elements can have a negative impact on the stability of the roof, insulation and can increase the load.

Vegetation

Roofs with a layer of grass need an appropriate thickness of the substrate (at least 20cm). The growing grass requires regular mowing and watering daily. Roofs with vegetation (shrubs and low trees) need to be cautious – it is unacceptable to hammer into a roof (such as wood or metal supports for trees) without the knowledge and consent of the manufacturer or professional contractor. Waterproofing layers can easily be damaged by this process leading to a re-roof or replacement, and this is an expensive venture.