Ensure maximum safety with RNS Qatar’s expert duct fireproofing services. Our Flamebar BW11 fire-rated ductwork and protective coatings offer up to 4-hour fire resistance, corrosion protection, and energy efficiency for HVAC systems. Ideal for smoke extract, kitchen exhaust, and stairwell pressurization applications across Qatar. https://rnsqatar.com/duct-fireproofing/