The Duro-Last Advantage
Top Quality Product, Exceptional Service
The Duro-Last Advantage
PVC MEMBRANE
The development in roof sciences and products has been rapid in the last 40 years. Tar & gravel has largely been replaced by Torch On membranes during that time.
Now, Duro-Last PVC membrane is beginning to replace other roofing materials thanks in part to its durability, life span and warranties. The change in Canada from tar & gravel was slow, coming in about 10 years behind the USA and Europe.
The resistance to this change was in part due to different installation techniques required and the fear that the new products would not perform as well as the tried and tested, old school Bur systems ie: Tar & Gravel. The same can be said for the development and influx of single ply systems which are now replacing Torch On.
Torch On is a modified bitumen membrane with a polyester & sometimes fibreglass core. PVC, a chemically engineered membrane made from polyvinyl chloride polymer, is basically derived from oil and salt. The end product is able to be recycled at the end of its life cycle as PVC is classified as a Type 3 plastic.
Vanderleek Roofing Inc. received training from Duro-Last at its Grants Pass, Oregon, facility in 2016 and has been successfully installing single ply PVC membrane in B.C., Alberta and beyond. This year, Duro-Last celebrated its 40th year in business.
Vanderleek Roofing Inc. has now completed over 1,000,000 Sq. Ft. of PVC roofing using Duro-Last PVC. Those installations cover a variety of commercial and industrial roofing projects, as well as condo board, stratified buildings and private residences.
Our clients include 7-Eleven stores, Extendicare, FreshPoint, The League, Tyee Plaza, Canada Bakery, NVI Mining, Value Village, Riverside Resort, Strata Vis 3178, Okotoks Air Ranch, Torrington Inn, Grace Baptist Church, CFMETR, Omni Foods, World Health, Emterra Environmental, CGGG Development, Nasim Charania, GW Carlson Construction. We have also completed a number of jobs for property management companies including CMS Realty & Property Management, Emerald Property Management, Widsten Property Management and Concise Strata Management.
Discover The Benefits
There are many benefits to using a Polyvinyl Chloride Polymer (PVC) product like Duro-Last. One of the biggest is that it is PVC through and through, which means no fillers or additives that could affect your roof system. Duro-Last’s membrane also has a non-wicking scrim. In other words, the woven core inside of it that will not pull water into it.
Duro-Last is lightweight, weighing roughly less than half a pound per square foot for the membrane. All of its components are also fully recyclable, which means you can basically roll the roof off, it gets ground down and is repurposed into new product, creating less impact on the environment compared to many other popular roofing products.
Maintenance
Duro-Last is virtually maintenance free. If any debris lands on the roof, or if there is mechanical work done, for example on HVAC units, it should be removed. But, other than that, nothing has to be done to the roof for the warranty to remain valid. Many other roofing systems require a regular maintenance schedule and without proof of one they will decline the warranty.
How Duro Last Compares to
TORCH ON
When considering a switch to a new roofing system, one of the first things many people want to know is, ‘How does it compare?’ In the case of Torch On roofing, we pulled together a few facts for you to see for yourself:
LIGHTWEIGHT
PVC is lightweight, weighing in at .3lb per Sq. Ft. compared to Torch On at 2lb per Sq. Ft
SAFETY
PVC is hot air welded, which means no flame and risk of fire. Torch On is open flame welded.
REFLECTIVITY
PVC is reflective leading to a cool roof. Torch On is minimally reflective, resulting in a hot roof.
PONDING WATER
PVC/Duro-Last’s guarantee is NOT Affected by ponding water. With Torch On, ponding water voids guarantees/warranties.
GUARANTEE
PVC/Duro-Last’s commercial guarantee is fully transferable without limitation to the number of transfers. Torch On membrane Commercial Guaranties are limited to one transfer.
WARRANTY
PVC/Duro-Last Commercial guarantee is NOT prorated, 15-year coverage on both materials & labour at no extra cost, & up to $10 Million consequential damages coverage included. Torch On systems limit coverage to materials only and are prorated after the first five years. Additional coverages cost extra.
ENVIRONMENTALLY FRIENDLY
PVC/Duro-Last membrane is recyclable as a class 3 plastic Torchon membrane is not recyclable.
DURABILITY
PVC/Duro-Last membrane is able to withstand salt, spray chemicals, acids, grease, oil and more.
Torch On membrane is not able to handle all acids or greases and is limited to chemical resistance.
With all these benefits the question is why this product is not more widely used the answer is simple Duro-Last PVC membrane is a manufacturer direct to installer product. All of the other commercial roofing products on the market are sold through distribution and then to the roofers.
This process requires that outside inspectors and roofing consultants be involved in the warranty process. Additionally, associations back these various entities so it is not in their best interest to allow or promote this manufacturer factory direct approach which saves money for the consumer and provides warranties at no additional cost to the consumer.
Warranty
With many of the other roofing product manufacturers, the warranty is pages thick and a breach of any of those items in it will void the warranty. The warranty is also broken into two section, one for materials and one for labour. The material warranty is typically being pro-rated after five years, which means the value will start to diminish after five years.
Duro-Last offers a manufacturer direct warranty on materials and labour for all commercial and industrial roofing projects. It is 15 years non-pro-rated, during that period of time Duro-Last also carries the labour warranty for the full 15 years. In addition, Duro-Last offers conflict damage up to $10 million for the building and/or the contents of the building.
We all know commercial buildings are flipped, and many manufacturers do not allow the transfer of the warranty. By not transferring the warranty, liability over the product is limited. Duro-Last stands behind its products and knows they want to be there to replace the roof when the time comes. That’s why they are one of the few roofing manufacturer companies that offer a fully transferable warranty for all of its roofing systems.
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