Tenders Are Invited For Sva/4620-36/2026 Renovation Of The Roof, Including Demolition And Reconstruction Of Brick Chimneys, Of A Commercial Building Located At Ul. Bernarda Pretficza 37 In Wrocław

The Subject Of The Order Is The Renovation Of The Roof, Along With The Demolition And Reconstruction Of Brick Chimneys, Of A Commercial Building Located At Ul. Bernarda Pretficza 37 In Wrocław. The Scope Of Works Includes: Replacement Of The Roof Covering And Sheet Metal Work, Including: - Dismantling The Roof Covering Of The Entire Surface, - Carrying Out Repair Works On The Concrete Screed Floor (Leveling Screed) Placed On Trough Slabs Using Cement Mortars. If Significant Destruction (Cracks, Chipping) Is Found, The Layer In Question Should Be Torn Off And Rebuilt In The Damaged Areas, - Dismantling All Steel Supply Ducts And Outlets Of The Quasi-Mechanical Ventilation Of The Outdated System, Including The Platforms Protruding Above The Roof Covering Surface, - Plugging The Holes Resulting From The Dismantling Of The Above-Mentioned. Ventilation Ducts By Installing A Flat Steel Sheet With A Thickness Of Min. 2.0 Mm, Fixed In The Substrate Using Steel Dowels Glued Onto Resin. Inventory The Places Of Covered Holes After Installation Passages For Future Use For The Installation Of New Mechanical And Exhaust Ventilation System Ducts, - Double Priming Of The Surface With Asphalt Emulsion, - Lay A Two-Layer System Covering Made Of Heat-Sealable Felt (Polyester Fiber Felt, Grammage Min. 200G/M2), Consisting Of Underlay Felt (Min. 3.2 Mm Thick) And Top Covering Felt (Min. 4.4Mm Thick). Roof Felt Reinforced With Polyester Non-Woven Fabric With A Grammage Of At Least 200G/M2 Of The Sbs System Should Be Used, - Execution Of Sheet Metal Flashings From Titanium-Zinc Sheets 0.55 Mm Thick, Connected By Soldering At The Chimneys, And Edge Flashings Around The Outline Of The Building. The Flashings Should Be Installed After Laying The Underlay Layer Of Thermally Weldable Felt, - Disassembly Of Existing Roof Drains, - Delivery And Installation Of Roof Drains With Connection, - Disassembly Of The Existing Roof Hatch, - Delivery And Installation Of The Roof Hatch. Renovation Of Brick Chimneys: - Chimneys Should Be Dismantled And Rebuilt According To The Design.