How To Take A Core Sample On A Flat Roof

Take one core sample mid way.

How to take a core sample on a flat roof.

To determine the true moisture content of a roof system core samples need to be extracted from the affected roof areas. Critically this should be at random locations on the roof not in a straight line. Whether one is taking core samples for the purpose of evaluation or design one of the primary purposes is material identification. One method of taking a core sample is with a special tool developed by the cold regions research engineering laboratory called a crrel cutter.

Core samples may be weighed dried and re weighed to provide a quantitative measure of moisture content. Why take a core sample. This tool consists of a 12 long 2 diameter pipe. 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.

Core samples consist of cuts through the roof membrane down to the roof deck. One end has saw teeth cut into the pipe the other has a place to insert a steel rod. The core cut also permits the constituents of the roof system and their condition to be determined. The core sample technique should be as follows.

How to take a core sample of a roof. 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. Skip navigation sign in. 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.

Taking core samples from flat roofs the right way. The method and process of core sampling is therefore important. 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. Take one core sample at a high point take one core sample at a low point and.

The sample provides an absolute test of moisture content and location. Flat roofs core sampling technique.