How To Take A Core Sample On A Flat Roof

Take one core sample at a high point take one core sample at a low point and.

How to take a core sample on a flat roof.

One end has saw teeth cut into the pipe the other has a place to insert a steel rod. If you are an estimator for a company involved in the residential or commercial roofing industry you are aware of how important a core cut is to developing qualified bids for your roofing. The inspector observes and documents the composition of the roof membrane cover board insulation vapour air retarder thermal barrier and roof deck layers thicknesses and method of. Taking core samples from flat roofs the right way.

How to take a core sample of a roof. One method of taking a core sample is with a special tool developed by the cold regions research engineering laboratory called a crrel cutter. Skip navigation sign in. The sample provides an absolute test of moisture content and location.

To determine the true moisture content of a roof system core samples need to be extracted from the affected roof areas. How to take a core sample of a roof. Samples of your roof will be neatly cut out in areas of dry medium and heavy moisture presence using a specialist cutting tool appropriate for your roof s material. The crrel cutter saws a 2 diameter hole in the roof.

Take one core sample mid way. Core samples may be weighed dried and re weighed to provide a quantitative measure of moisture content. The roof will be penetrated through the membrane down to the deck in a cut between 4 and 12 inches in size and each sample will be taken away in an airtight container for scientific analysis. Whether one is taking core samples for the purpose of evaluation or design one of the primary purposes is material identification.

The core sample technique should be as follows. Critically this should be at random locations on the roof not in a straight line. The method and process of core sampling is therefore important. Why take a core sample.

Core samples consist of cuts through the roof membrane down to the roof deck. Tyler showing how to take a core sample out of a roof also known at best roofing as a roof cookie core samples consist of cuts through the roof membran.