Tenders Are Invited For Renovation Of The Attic And Roofing In The Primary School Building No. 246 At Ul. Białowieża 22 In Warsaw.

1. The Subject Of The Contract Is: Renovation Of The Roof Of The Primary School Building No. 246 At Ul. Białowieża 22 In Warsaw. The Purpose Of Roof Renovation Is To Remove Roof Leaks, Irregularities In Ventilation And Lightning Installations, And To Prepare The Roof For Attic Development In The Future For Utility Purposes. The Building In Question Is A Building Made In Traditional Technology, Brick With Reinforced Concrete Ceilings. The Roof Of A Multi-Pad Of A Wooden Flavor-Sprace Structure, With A Slope Angle Of Approx. 32 And 45. Roof Main Girders Spaced Every 3.80 M. Building On The Outline Topped With A Cornice. The Roof Is Covered With Roofing Metal Sheet Made Of Galvanized Sheet Metal In Red. Gravitational Ventilation Chimneys Made Of Brick Full Of Brick Finished With Steel Sheet, Cast Iron Roof Outfits Or Galvanized Sheet. Technical Condition Of The Roof Of The Building - Medium. The Roofing Has A Significant Degree Of Wear - Locally Soaked Formwork, Especially In The Lower Parts Of The Roof Slopes. Waterproof Layer Made Of Bituminous Papa In Medium State - Visible Local Leaks. Roof Covering With A Metal Roof Tile - Made Incorrectly, Leaky Connections, Visible Leaks. Medium Flashings - Visible Deformations, Unsealing And Corrosion Focus. Murowy Structure Of The Cornices In A Sufficient State - No Visible Larger Brick Defects. Finishing Cornices In An Insufficient State - Locally Visible Defects In Plaster. Chimney Sweep Benches In A Sufficient State, But There Is No Other Chimneys. Brick Chimneys In A Sufficient State - No Visible Cracks; Calculation And Chimney Caps Made Of Sheet Metal. Roof Structure In A Sufficient Condition - Only Birds Dirt Visible With Droppings And Slight Surface Moisture. As Part Of Renovation Works, The Installation Of Roof Windows Measuring 78X160cm In The Existing Roof Is Expected. The Installation Of Windows Is Intended In The Context Of Development Of The Attic For Utility Purposes In The Future. Windows Are Designed As Wooden, With A Heat Transfer Coefficient U = 0.9 W/M2 × K.Strop Above The Last Floor In A Sufficient State - There Is No Permanent Damage To The Ceiling Structure That Can Affect The Safety Of Use. The Ceiling Insulated With A Layer Of Polystyrene With A Thickness Of 15Cm. The Attic Space Is Sufficiently Venting The Sewage Risers And Some Of The Ventilation Channels From The Metal Sheet Moved Only To The Attic Space. The Existing Ventilation Of Sanitary Sewage Divisions In Insufficient State - Old Cast Iron Pipes Qualify For Replacement. Chimney Flues Sewers Rusted And Permanently Opened. Renovation Covers Include: 1. Maintenance And Repair Of Roof Truss Structure. 2. Renovation Of Building Cornices. 3. Renovation Of Chimneys. 4. Replacement Of Flashings. 5. Replacement Of Roof Outlets. 6. Replacement Of Roofing. 7. Installation Of Roof Windows. 8. Replacement Of Lightning Protection Installation. A Detailed Description And Scope Of Works Is Specified In Annex 9 To Swz: A) Description Of Th