Vanguard Roofing

As the wind at ground level meets the building the wind is forced up and over the building creating (negative) uplift pressure and wind vortexes on the roof. Interior pressure from the building creates (positive) pressure. A pull test determines the positive & negative pressure applied to the roof from the wind. and how much the roofing system can stand before blowing off. It can also let roof designer know if you have adequate roof venting for your roofing system.

It’s is a scheduled maintenance plan that may extend the life-span of your commercial roof. Some manufacturers require that you have this plan, in place, for the warranty to be effective. It includes roof inspection twice a year, commonly one in the spring and the second in the fall. It also includes regular repairs of common roof components such as flashings, drains, curbs, gutters, vents, etc. Special attention is given to the roof surface on a flat roof. It is at risk due to weathering and standing water. As such your roofing contractor will look for; ponding water, punctures and holes, shrinkage, and cracking & blistering. By having a preventative maintenance in place you can significantly lower your overall facilities costs and diminish the need for emergency repairs.

Typically the average lifespan for low-pitch /flat roofing is: Built –up 10-15 years Modified Bitumen 12-20 years Spray –applied coatings 20-50 years TPO (thermoplastic) 22-30 years* PVC (vinyl) 22-35 years* EPDM (Synthetic Rubber) 25-30 years* Metal 30-45 years.

An Infra-red Scan provides vital information about a flat roof so that a more informed decision can be made when assessing new roofing options for a facility. The Infra-red scan indicates areas of a flat roof that are moisture contaminated or worse, has saturated the underlying insulation. A roof diagram may be developed for the building owner plotting areas of dry, damp and/or saturated insulation. This information not only helps to build a history of your roof but may also help in pinpointing problematic areas that need to be inspected for defects or in need of repair. The cost of the scan is minimal compared to the savings.