What Duro-Last is
Duro-Last is a PVC (polyvinyl chloride) single-ply roof. It has been made since 1978, is headquartered in Saginaw, Michigan, and has a manufacturing plant in Dallas, Texas, among eight plants across the country. Duro-Last reports more than 2 billion square feet of membrane installed across North America.
Some people search for it as Duralast or Duro Last. It is the same system: a custom-fabricated PVC roof for low-slope commercial buildings.
Why custom fabrication matters on a Corpus Christi roof
Duro-Last itself points out that most leaks in single-ply roofs come from imperfect seams and poor workmanship. Duro-Last moves most of that seam work into a factory. Using its own example of a 50,000 square foot roof, the field seams drop from about 7,968 linear feet with 6-foot roll goods to about 1,278 linear feet with custom-fabricated deck sheets.
On the Coastal Bend, where storms push rain sideways off the bay and the Gulf, fewer field seams means fewer places for water to get in. Flashings and accessories, like corners, parapet flashings, scuppers and collector boxes, can also arrive pre-made with welded membrane skirts.
What Duro-Last does well in South Texas
Sun and heat. A white PVC roof reflects far more of the Corpus Christi sun than a dark roof, which keeps the roof cooler and cuts the cooling load in the building below.
Chemicals and grease. PVC resists many chemicals, which is why it is a strong fit for restaurants, food plants and industrial buildings near the Port and the refinery corridor.
Faster, cleaner installs. With most seams made in the factory, crews spend less time welding on the roof and there is less scrap and cleanup.
Fire. PVC membranes self-extinguish after fire exposure.
Re-roofing options. On the right building, Duro-Last can be installed over a sound existing roof where local code allows it.
Buildings in the Coastal Bend that suit Duro-Last
Restaurants and kitchens with grease exhaust, food processing, warehouses, retail centers, offices, medical buildings, churches, schools-style buildings, and industrial and plant buildings along the Port of Corpus Christi, Ingleside and the refinery corridor. Roofs with lots of penetrations and odd shapes benefit most, because the custom fabrication handles the details.
Why Nelson Roof Contracting for Duro-Last
Nelson Roof Contracting is a certified Duro-Last installer and brings over 50 years of hands-on roofing experience to Corpus Christi building owners. Every job is supervised, and every coastal re-roof is planned with the Texas windstorm code in mind. Our office is at 5233 IH 37 in Corpus Christi.
How Nelson Roof Contracting runs a Duro-Last job
1. Inspect and measure. We walk the roof, check the deck and insulation, and take the exact measurements Duro-Last needs to fabricate your roof.
2. Duro-Last builds your roof in the factory. From our measurements, Duro-Last fabricates the deck sheets and flashings to fit your building, with up to 85% of the seams welded before delivery.
3. Supervised installation. Our crews install the system with every job supervised, paying special attention to edges, corners and penetrations, where coastal roofs fail.
4. Windstorm inspection. On the Texas coast we plan the roof for the windstorm inspection and WPI-8 certificate from day one.
5. Duro-Last's own inspection. A Duro-Last Quality Assurance technical representative inspects the finished roof before the warranty is issued.
Duro-Last is a registered trademark of Duro-Last, Inc. Nelson Roof Contracting is an independent roofing contractor and certified Duro-Last installer.