Inspection of Fire Dampers
Overview of the most important dates:
- at the latest until 30 September 1984 (depending on the manufacturer), TROX until June 1981:
asbestos-containing damper blades, compression seal fittings and other construction elements
- until 31 July 1988 (TROX, SCHAKO), until mid-August 1988 (WILDEBOER):
asbestos-containing compression seal fittings ("Litaflex")
- at the latest from mid-August 1988 (all manufacturers):
Nowadays, a large number of the old asbestos-containing fire dampers are still in operation, but they show distinct symptoms of aging (especially at the compression seals).
Meanwhile, it has been shown that asbestos-containing fire dampers can release high amounts of asbestos fibers into the ventilation system when triggered (when the damper blade hits the compression seal), as happens during the required regular functional inspections, for example. This has already been taken into consideration in the current LV 45 Guidelines on the Hazardous Substances Ordinance issued by the Commission for Occupational Health and Safety of the Federal States (LASI) dated October 2018.
Besides this, the protective measures listed in the Hazardous Substances Ordinance in relation to exposure to asbestos (multi-chamber locks with negative pressurization, etc.) which correspond to the regulations in TRGS 519 for “Demolition and reconstruction work on friable asbestos products” (Section 14) must also be taken into account.
As the current legal requirements considerably increase the overall effort involved in operating and maintaining (functional inspection) fire dampers containing asbestos, remediation is now advisable for fire prevention and also commercial reasons.
The current state-of-the-art approach is an individual assessment of the condition of the fire dampers by an asbestos expert and the grading of the fire dampers into damage categories depending on the assumed risk of fiber release. As it is often not possible for organizational and/or financial reasons to replace all fire dampers in a building at the same time, this “prioritization” by the asbestos expert and recommended sequence for the demolition or reconstruction is useful. At the same time, this serves as the basis for an agreement between the building owner, building authorities and fire prevention experts.
During the inspection, the asbestos expert also documents the environment of the fire damper (access, room dimensions, etc.) and analyzes it for the presence of other materials suspected of containing asbestos (fire protection boards, mortar, flange gaskets, etc.). These aspects must also be taken into consideration during a demolition or reconstruction.
Our services to you include:
- Expert assessment of fire dampers with analysis for evidence of asbestos
- Assessment of the current condition and grading into damage categories / priority levels
- Technical investigation in the surrounding area of the fire dampers (collection and analysis of material samples)
- Contaminant register
- Renovation and disposal concepts
- Occupational safety concepts
- Bidding documents
- Project management, dismantling supervision
The General Association of Hazardous Material Remediation (Gesamtverband Schadstoffsanierung, GVSS) has certified us as "Remediation experts for surveying and planning" for the remediation of buildings and plants impacted with contaminants.
Moreover the LGA-IUA is qualified as "Examination Center for Contaminated Building Materials and Construction Waste" to perform external quality controls and take on tasks as head technical expert.
The German Demolition Association (Deutscher Abbruchverband, DA) has officially recognized Dr. Kisskalt as an "expert advisor" for the categories "general demolition", "hazardous building materials" and "waste management".