Ground penetrating radar uses electromagnetic pulses to detect changes in subsurface materials and objects. Like seismic reflection, GPR sends a pulse of electromagnetic energy into the ground and reflects off subsurface objects or changes in conductive and dielectric properties of the underlying material. The resulting signal return is captured by the receiver antenna and displayed on the screen as a hyperbola-shaped trace. The distortions and contrast of the returned signal indicate the presence and size of a buried object or change in the underlying material.Read more :gpr-survey.uk

The maximum penetration depth of the radar system depends on the type of soil or rock and the frequency of the antenna used. Lower frequencies offer better penetration depth but less resolution, whereas higher frequencies provide greater resolution but less penetration depth. A GPR survey area can be scanned with a variety of frequencies and different antennas, depending on the investigation objectives.

Ground Penetrating Radar: A Non-Destructive Testing Technique

Typically, an antenna pair mounted on a pushcart is used to transmit radar pulses over a survey path. The signals reflect off of buried structures and the data gathered is read by a GPR technician to produce an image of the underlying material. GPR is a non-invasive and highly portable method with the highest lateral and vertical resolution of any surface geophysical method. For more information about how a ground penetrating radar can help with your project, contact us today! Our expert staff can answer your questions and assist with planning and preparing for your next utility location or buried structure investigation.

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The roof of your home or commercial building has more functions than just the visible material that covers it. One of the most important is insulating it to keep heat inside when you need it and outside when you don’t, and that in turn helps lower your energy bills, protects the structure, and helps you become more sustainable.

When it comes to insulation roof, there are many options out there. You can choose from a variety of materials including traditional fiberglass batts and spray foam, as well as natural alternatives such as cellulose insulation. You can also use a reflective radiant barrier to prevent cold air from entering your home and heat from escaping.

Insulation Roof: Key Considerations for Effective Installation

Fiberglass insulation is a popular choice since it’s affordable and easy to install by your roofers. It also has a good insulating value, called R-value, for most climate zones. Other options include blown-in cellulose insulation, which is made of recycled newsprint and paper and can be installed in hard to reach areas. This type of insulation, which is usually applied to wall studs and ceiling joists, also has a low embodied energy content compared with other types of roof insulation.

You can also opt for a more modern roof insulation material such as spray foam, which is applied by professionals and expands to fill cracks and crevices in the attic space. This type of insulation is water-resistant, doesn’t appeal to rodents and has a higher R-value than fiberglass. It’s also fire-resistant and can seal around plumbing vents.

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