COMMISSIONING ANINFRARED SURVEY ENABLES QUICK & TRUE TIME DATA TO YOUR HOUSING STOCK SURVEY
‘’Thermographic imaging is a quick and cost effective way to evaluate a roof’s performance, and is more accurate than conventional inspection methods. The results allow building managers and owners to make informed decisions about how to action any defects identified, budgeting repair costs and extend the life of their roof.’’
IDENTIFY PROBLEMATIC LEAKS, MOISTURE INGRESS AND SATURATED INSULATION IN A THERMAL SURVEY
INFRARED FLAT ROOF SURVEYSThermographic imaging is a non-destructive test methodology, which identifies areas of a roof damaged through moisture ingress, which could otherwise remain undetected using standard visual inspection and random core sample techniques. The captured images are converted into a clear report of the roof’s overall condition.In many instances, it is vital for the extent of damaged insulation and moisture ingress to be identified prior to deciding remedial action. Examples of important issues for consideration are:Excessive roof loading through added moisture (particularly when considering adding HVAC & PV equipment)Stored moisture may enter the building over a number of yearsStructural CorrosionContinuous Cosmetic Degradation to Finished SurfacesThe Thermal Performance of Saturated Insulation is akin to a Thermal Bridge, resulting in higher energy bills.APPLICATIONS•All Year-Round Survey•School Roof surveys simplified •Evaluating a Roofs Performance & Life Span•Integrity of Waterproofing •Before & After Roof Repair Surveys•Large Renovation Projects •Quick & Cost Effective Solution for On-going Problematic Leaks•Identifying Potential Problems Before They Escalate •Reduces Costly Downtime & Interrupted Operations •Quick, Accurate & Precise Results•Establish Condition Before Other Works Commence (Such As PV Installations).
ELECTRONIC LEAK DETECTION TESTING (ELD)By using Electronic Leak Detection (ELD) Technology in conjunction with Thermal Imaging, our surveyor can identify the precise location of tiny pin holes within a roof’s waterproof membrane. With a test voltage of up to 40,000 volts and a conductive brush made with Phosphor Bronze bristles, a systematic sweep of the roof is carried out. The surveyor is alerted by a visible spark and audible tone when a hole is located. The position of the defect is photographed, marked on the roof and noted on a sketch plan. Once the repairs have been completed, we would recommend a re-test, to make sure all the voids have been patched effectively. This type of survey is often considered mandatory by some Main Contractors as a ‘sign-off’ test for a new roof, for which we can issue a ‘’Certificate’ of Water Proofing Integrity’’ after a successful survey. An ELD survey identifies where the holes are located, a thermal survey will highlight the extent of trapped moisture.APPLICATIONS•All Year-Round Survey•Flat Roof Surveys•School Roof Projects•Evaluating Waterproofing Performance & Life Span •Before & After Roof Repair Surveys•Sign Off for New Roofs, Certificate Provided•Large Renovation Projects - Part of a BREEAM pre works assessment•Quick & Cost Effective Surveys for On-going Problematic Leaks•Identifying Potential Problems Before They Escalate •Reduces Costly Downtime & Interrupted Operations •Quick, Accurate & Precise Results OUR PROCESS FOR AN ELD SURVEY •Daytime ELD - Dry Conditions•Mark the Roof and photograph any defects detected.•Produce a plan of photographed defects.•Collate and evaluate data into a report. •Presentation Meeting of the Report (If Requested)•Remedial Work to Be Actioned by The Client•Re-Test of The Roof (Recommended)•Certificate of Waterproofing Integrity issued (Once any repaired defects are retested)
CONDITIONS FOR A SUCCESSFUL THERMAL SURVEY OF A FLAT ROOF•The roof should be dry, free of ponding and clear of debris•The wind speed should be less than 5m/sec•The membrane must be exposed – no chippings, ballast or slabs or debris.•The Membranes over treated with reflective paint or resin can give poor results•Sufficient solar gain to warm the roof membrane and any trapped moisture
CONDITIONS FOR A SUCCESSFUL ELD SURVEY OF A FLAT ROOF•The roof should be dry, free of ponding and clear of debris•The membrane must be exposed – no ballast, slabs or debris•The Membranes over treated with reflective paint or resin can give poor results