ÂÜÀòÔ­´´

Construction Contract Leads

Section I: Contracting authority

I.1) Name and addresses

Nantwich Town Council

Nantwich Civic Hall, Market Street

Nantwich

CW55DG

Contact

Samantha Roberts

Email

samantha.roberts [at] nantwichtowncouncil.gov.uk

Telephone

+44 1270619224

Country

United Kingdom

Region code

UKD62 - Cheshire East

Justification for not providing organisation identifier

Not on any register

Internet address(es)

Main address

I.3) Communication

The procurement documents are available for unrestricted and full direct access, free of charge, at

Additional information can be obtained from the above-mentioned address

Tenders or requests to participate must be submitted electronically via

Tenders or requests to participate must be submitted to the above-mentioned address

I.4) Type of the contracting authority

Other type

Town Council

I.5) Main activity

General public services

Section II: Object

II.1) Scope of the procurement

II.1.1) Title

Market Hall Roof Refurbishment

II.1.2) Main CPV code

• 45261900 - Roof repair and maintenance work

II.1.3) Type of contract

Works

II.1.4) Short description

THE WORKS INVOLVE THE APPLICATION OF A COLD-APPLIED LIQUID ROOFING SYSTEM TO THE EXISTING FAILED METAL PITCHED ROOF. THE SITE IS A HIGH-PROFILE PUBLIC BUILDING SITUATED IN A CONSTRAINED TOWN-CENTER ENVIRONMENT. THE MARKET HALL WILL REMAIN FULLY OPERATIONAL THROUGHOUT THE DURATION OF THE WORKS.

THE WORKS SHALL INCLUDE THE PREPARATION AND WATERPROOFING OF THE PARAPET WALL ABUTMENT TO THE CHURCHYARDSIDE AND PEPPER HOUSE GABLES OF THE EXISTING METAL ROOF USING A REINFORCED COLD LIQUID-APPLIED KEMPEROL WATERPROOFING SYSTEM.

THE WORKS SHALL INCLUDE:

• TEMPORARY REMOVAL OF EXISTING COPING STONES.

• PREPARATION OF PARAPET WALL SURFACES.

• FORMATION OF A CONTINUOUS KEMPEROL WATERPROOFING UPSTAND.

• WATERPROOFING BENEATH COPING STONES.

• REINSTATEMENT OF COPING STONES FOLLOWING COMPLETION.

• ALL ASSOCIATED DETAILING, SEALING, AND MAKING GOOD.

II.1.5) Estimated total value

Value excluding VAT: £175,000

II.1.6) Information about lots

This contract is divided into lots: No

II.2) Description

II.2.3) Place of performance

NUTS codes

• UKD6 - Cheshire

Main site or place of performance

Nantwich Market Hall

Market Street

Nantwich

CW5 5DG

II.2.4) Description of the procurement

1. GENERAL

A FULL ROOF SURVEY WILL ESTABLISH ANY PROBLEMS THAT EXIST WITH THE EXISTING ROOF. SOME COMMON ISSUES WITH THIS TYPE OF STRUCTURE INCLUDE;

• LOOSE FIXINGS AND FASTENERS

• CUT END CORROSION OF METAL SHEETS

• MISSING PROFILE FILLER PIECES - RIDGE AND EAVES

• LEAKING GUTTERS

FIXINGS

FIXINGS ARE CONSIDEREDTHE MAIN REASON FOR WATER INGRESS IN THIS ROOF. ALLOWING WATER INGRESS. FIXINGS WILL ALSO BE AFFECTED BY RUST AND WILL PROVE DIFFICULT TO TIGHTEN UP. ALL THE FIXINGS SHOULD BE WIRE BRUSHED AND GIVEN INDIVIDUAL TREATMENT IN ACCORDANCE WITH THE COATING MANUFACTURER'S SPECIFICATION.

THE NUMBER OF FIXINGS SHOULD ALSO BE CHECKED. FOR ADEQUATACY

THE WORK SHALL INCLUDE THE SUPPLY AND INSTALLATION OF THE KEMPEROL LIQUID APPLIED WATERPROOFING SYSTEM TO THE EXISTING METAL PITCH ROOF, AS WELL AS THE LINING OF THE GUTTERS.

ALL WORK SHALL BE CARRIED OUT IN ACCORDANCE WITH THE MANUFACTURER'S GUIDELINES AND BRITISH STANDARDS FOR ROOFING SYSTEMS.

2. MATERIALS

THE SYSTEM SHALL USE KEMPEROL V 210 M, A COLD LIQUID-APPLIED, SEAMLESS WATERPROOFING SOLUTION.

KEMPEROL 500 FLEECE FABRIC: HIGH-STRENGTH, POLYESTER REINFORCEMENT FABRIC TO BE EMBEDDED IN THE RESIN.

PRIMER: KEMPERTEC 2 PARTS POLYURETHENE D-PRIMER PART A + B PRIMER SUITABLE FOR METAL SURFACES, ENSURING ADHESION.

3. SURFACE PREPARATION

EXISTING METAL ROOF SURFACE SHALL BE CLEANED, DEGREASED, AND FREE FROM DUST, RUST, OIL, AND LOOSE DEBRIS.ANY STRUCTURAL REPAIRS, INCLUDING MINOR RUST TREATMENT OR SEALING HOLES, SHALL BE COMPLETED PRIOR.

THE METAL SURFACE MUST BE DRY AND PRIMED WITH THE RECOMMENDED KEMPEROL METAL PRIMER, APPLIED IN ACCORDANCE WITH THE MANUFACTURER'S INSTRUCTIONS.

4. PRIMER APPLICATION

APPLICATION SHOULD ONLY TAKE PLACE WHEN THE AIR TEMPERATURE IS +5°C OR GREATER AND THE SUBSTRATE IS +3°C (AND RISING) ABOVE THE DEW POINT.

INSPECT THE SURFACE TO BE COATED TO ENSURE IT IS DRY AND FREE FROM CONTAMINATION. APPLY BY BRUSH OR NYLON ROLLER TO SEAL AND CONDITION THE SUBSTRATE

5.WATERPROOFING APPLICATION

APPROXIMATELY 2/3 OF THE REQUIRED KEMPEROL® RESIN SHOULD BE APPLIED TO THE PRIMED SUBSTRATE PRIOR TO EMBEDDING THE KEMPEROL® FLEECE. ROLL OUT THE KEMPEROL® FLEECE DIRECTLY INTO THE LIQUID KEMPEROL® WATERPROOFING SYSTEM ENSURING THERE ARE NO FOLDS, CREASES OR AIR BUBBLES, ALLOWING FOR 50MM ON FLEECE OVERLAPS. USE A ROLLER OR BRUSH TO REMOVE ANY AIR BUBBLES AND THEN APPLY THE REMAINING APPROXIMATELY 1/3 OF THE KEMPEROL® WATERPROOFING RESIN WHILE THE FIRST COAT IS STILL WET UNTIL THE FLEECE IS FULLY SATURATED. AVOID ACCUMULATIONS OF MATERIAL.

ALL OVERLAPS IN THE FLEECE SHOULD BE FULLY SATURATED TO ENSURE CONTINUITY OF THE SYSTEM AND BE A MINIMUM OF50MM. CONNECTIONSTOTHESURFACEWATERPROOFINGSHOULDBEMADEWITHAMINIMUM100MMOVERLAP.

APPLICATION SHOULD ONLY TAKE PLACE WHEN THE AIR TEMPERATURE IS +5°C OR GREATER AND THE SUBSTRATE IS +3°C (AND RISING) ABOVE THE DEW POINT.

ENSURE ALL TRANSITIONS, UPSTANDS, AND DETAILING (SUCH AS AROUND FLASHINGS AND GUTTERS) ARE THOROUGHLY SEALED AND REINFORCED.

ON VERTICAL SURFACES, WHILST STILL WET OVER-SCATTER WITH KEMPERDUR® NQ0712 KILN-DRIED QUARTZ AT A COVERAGE RATE OF 2KG/M2, TO PROVIDE AN IMPROVED KEY FOR THE WATERPROOFING MEMBRANE.

6. GUTTER LINING

THE GUTTERS SHALL BE FULLY PREPARED, CLEANED, AND PRIMED AS PER THE ROOF SURFACE.

APPLY THE SAME TWO-COAT KEMPEROL SYSTEM TO ALL GUTTER LININGS, ENSURING A CONTINUOUS SEAL FROM THE ROOF INTO THE GUTTER.

INSPECT ALL CORNERS, JOINTS, AND OUTLET POINTS FOR FULL WATERPROOFING COVERAGE.

7. CURING AND PROTECTION

ALLOW THE KEMPEROL SYSTEM TO CURE FULLY AS PER MANUFACTURER GUIDELINES BEFORE ANY FOOT TRAFFIC OR EXPOSURE TO WATER.

ENSURE THE SURFACE IS PROTECTED FROM MECHANICAL DAMAGE DURING AND AFTER APPLICATION.

8. GUARANTEE

THE KEMPEROL SYSTEM SHOULD BE GUARANTEED FOR A MINIMUM OF 20 YEARS AGAINST WATER INGRESS, PROVIDED ALL INSTALLATION STEPS ARE FOLLOWED.

9. HEALTH AND SAFETY

ENSURE ALL PERSONNEL FOLLOW THE SAFETY GUIDELINES WHEN WORKING ON A PITCHED METAL ROOF, INCLUDING HARNESSES AND EDGE PROTECTION.PROVIDE SAFETY MEASURES TO PREVENT SLIPS AND FALLS DURING APPLICATION

2. PARAPET WALL AND COPING STONES CHURCHYARD GABLE

1. SCOPE OF WORKS

THE WORKS SHALL INCLUDE THE PREPARATION AND WATERPROOFING OF THE PARAPET WALL ABUTMENT TO THE CHURCHYARDSIDE AND PEPPER HOUSE GABLES OF THE EXISTING METAL ROOF USING A REINFORCED COLD LIQUID-APPLIED KEMPEROL WATERPROOFING SYSTEM.

THE WORKS SHALL INCLUDE:

• TEMPORARY REMOVAL OF EXISTING COPING STONES.

• PREPARATION OF PARAPET WALL SURFACES.

• FORMATION OF A CONTINUOUS KEMPEROL WATERPROOFING UPSTAND.

• WATERPROOFING BENEATH COPING STONES.

• REINSTATEMENT OF COPING STONES FOLLOWING COMPLETION.

• ALL ASSOCIATED DETAILING, SEALING, AND MAKING GOOD.

2. EXISTING CONSTRUCTION

THE EXISTING ROOF COMPRISES PROFILED METAL SHEETING ABUTTING A MASONRY PARAPET WALL WITH STONE COPING UNITS ABOVE. THE EXISTING ARRANGEMENT SHALL BE INSPECTED PRIOR TO COMMENCEMENT TO IDENTIFY:

• LOOSE OR DEFECTIVE MASONRY.

• FAILED POINTING OR CRACKED COPING STONES.

• AREAS OF CORROSION OR DEFECTIVE FLASHINGS.

ANY DEFECTIVE SUBSTRATE SHALL BE REPAIRED PRIOR TO APPLICATION OF THE WATERPROOFING SYSTEM.

3. REMOVAL OF COPING STONES

CAREFULLY REMOVE EXISTING COPING STONES TO THE FULL LENGTH OF THE PARAPET WHERE KEMPEROL WATERPROOFING IS TO BE INSTALLED.

STORE COPING STONES SAFELY FOR REUSE WHERE SUITABLE.

REPLACE ANY DAMAGED OR FRACTURED COPING STONES WITH MATCHING UNITS.

REMOVE EXISTING MORTAR BEDDING AND CLEAN THE EXPOSED PARAPET SURFACES.

CARE SHALL BE TAKEN TO AVOID DAMAGE TO ADJACENT MASONRY AND ROOF COVERINGS.

4. SURFACE PREPARATION

MECHANICALLY CLEAN ALL PARAPET SURFACES TO REMOVE DIRT, LOOSE MATERIAL, BIOLOGICAL GROWTH, FAILED COATINGS, AND CONTAMINANTS ABRADE AND CLEAN ADJACENT METAL ROOF SURFACES TO PROVIDE A SUITABLE KEY.

PRIME ALL SUBSTRATES WITH THE APPROPRIATE KEMPEROL PRIMER IN ACCORDANCE WITH THE MANUFACTURER'S RECOMMENDATIONS

SUBSTRATES MUST BE DRY, SOUND, AND FREE FROM STANDING WATER BEFORE APPLICATION.

5. KEMPEROL UPSTAND WATERPROOFING

APPLY KEMPEROL REINFORCED LIQUID WATERPROOFING CONTINUOUSLY FROM THE ROOF SURFACE AND EXTEND VERTICALLY UP THE PARAPET WALL.

* THE WATERPROOFING SHALL:

EXTEND TO THE FULL HEIGHT OF ALL PARAPET WALL SECTIONS AND CONTINUE OVER THE TOP OF THE PARAPET BENEATH THE COPING STONES TO PROVIDE A CONTINUOUS WATERPROOF BARRIER.

BE FULLY REINFORCED USING KEMPEROL FLEECE EMBEDDED WITHIN WET RESIN.

BE DRESSED NEATLY AROUND ALL JOINTS, CORNERS, AND TERMINATIONS.

THE COMPLETED SYSTEM SHALL PROVIDE A SEAMLESS WATERPROOF MEMBRANE WITH NO EXPOSED LAPS OR JOINTS.

6. COPING STONE REINSTATEMENT

RE-BED COPING STONES ON FRESH MORTAR BEDDING FOLLOWING COMPLETION AND CURING OF THE KEMPEROL SYSTEM.

ENSURE COPING STONES ARE LAID TO CORRECT FALLS TO SHED WATER AWAY FROM THE WALL FACE.

FORM JOINTS USING APPROPRIATE EXTERIOR-GRADE POINTING MORTAR.

AVOID MECHANICAL DAMAGE TO THE COMPLETED KEMPEROL MEMBRANE DURING REINSTATEMENT WORKS.

WHERE REQUIRED, INSTALL SEPARATION/PROTECTION LAYERS BETWEEN THE MEMBRANE AND BEDDING MORTAR IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS.

7. DETAILING AND TERMINATIONS

PARTICULAR ATTENTION SHALL BE GIVEN TO:

INTERFACES BETWEEN METAL ROOF SHEETS AND MASONRY.

ENDS OF PARAPET RUNS.

RAINWATER DISCHARGE POINTS AND GUTTER INTERFACES.

ALL DETAILING SHALL BE COMPLETED USING COMPATIBLE KEMPEROL COMPONENTS TO MAINTAIN SYSTEM INTEGRITY.

8. PROTECTION AND COMPLETION

PROTECT COMPLETED WORKS FROM DAMAGE AND FOOT TRAFFIC UNTIL FULLY CURED.

REMOVE DEBRIS AND SURPLUS MATERIALS FROM SITE.

LEAVE ALL GUTTERS AND RAINWATER OUTLETS CLEAN AND FULLY OPERATIONAL.

9. GUARANTEE

THE COMPLETED KEMPEROL WATERPROOFING INSTALLATION SHALL BE ELIGIBLE FOR A MANUFACTURER-BACKED GUARANTEE, SUBJECT TO INSTALLATION BY AN APPROVED CONTRACTOR AND COMPLIANCE WITH THE MANUFACTURER'S SPECIFICATION.

PROJECT SPECIFICATION: UPPER LEVEL MASONRY REMEDIALS

1. SCOPE OF WORK

THE WORKS COMPRISE THE LOCALIZED REPOINTING AND BRICK REPLACEMENT TO THE HIGH-LEVEL PARAPET, PEDIMENT, AND ASSOCIATED TRIANGULAR AND HORIZONTAL GABLES. THIS INCLUDES:

CAREFUL REMOVAL OF FAILED OR NON-BREATHABLE (CEMENTITIOUS) MORTAR.

REPLACEMENT OF PERISHED OR "BLOWN" BRICKS TO MATCH THE EXISTING BOND AND CHARACTER.

APPLICATION OF NEW LIME-BASED MORTAR TO THE HIGH-LEVEL ELEVATIONS.

2. MATERIALS AND MATCHING

BRICKS: ANY REPLACEMENT UNITS MUST MATCH THE EXISTING IN DIMENSIONS, COLOR, TEXTURE, AND COMPRESSIVE STRENGTH. GIVEN THE "PERISHED" NATURE MENTIONED, RECLAIMED OR HANDMADE BRICKS SHOULD BE SOURCED TO ENSURE A SEAMLESS BLEND WITH THE 19TH-CENTURY FABRIC.

MORTAR MIX: A NATURAL HYDRAULIC LIME (NHL 3.5) MIX IS RECOMMENDED TO ALLOW FOR MOISTURE MOVEMENT AND BREATHABILITY.

RATIO: TYPICALLY 1:2.5 OR 1:3 (LIME:AGGREGATE).

AGGREGATE: WELL-GRADED SHARP SAND, COLOR-MATCHED TO THE EXISTING WEATHERED JOINTS.

SAMPLES: A 1M² SAMPLE AREA OF REPOINTING AND A SAMPLE OF REPLACEMENT BRICKS MUST BE APPROVED ON-SITE BEFORE FULL COMMENCEMENT.

3. PREPARATION AND EXECUTION

RAKING OUT: JOINTS MUST BE RAKED OUT MANUALLY OR USING SPECIALIZED OSCILLATING TOOLS TO A MINIMUM DEPTH OF 20MM (OR TWICE THE JOINT WIDTH). STRICTLY NO USE OF ANGLE GRINDERS, WHICH RISK DAMAGING THE BRICK ARRISES.

CLEANING: JOINTS MUST BE BRUSHED CLEAN AND PRE-WETTED WITH DEIONIZED WATER TO PREVENT THE MASONRY FROM "SUCKING" MOISTURE OUT OF THE NEW MORTAR TOO QUICKLY.

LAYING & POINTING: * NEW BRICKS MUST BE LAID TO MATCH THE EXISTING FLEMISH OR ENGLISH BOND (AS APPLICABLE TO THE SPECIFIC SECTION).

MORTAR SHOULD BE FIRMLY "IRONED" INTO THE JOINTS.

FINISH: A "RECESSED" OR "FLUSH" FINISH (TO BE CONFIRMED BY SAMPLE) THAT IS LIGHTLY BRUSHED BACK AS IT REACHES ITS INITIAL SET TO EXPOSE THE AGGREGATE AND AVOID A "FATTY" LIME FINISH.

II.2.5) Award criteria

Quality criterion - Name: Quality and Service / Weighting: 30

Cost criterion - Name: Price / Weighting: 60

Cost criterion - Name: Sustainability / Weighting: 10

II.2.6) Estimated value

Value excluding VAT: £175,000

II.2.7) Duration of the contract, framework agreement or dynamic purchasing system

Start date

26 October 2026

This contract is subject to renewal

No

II.2.10) Information about variants

Variants will be accepted: Yes

II.2.11) Information about options

Options: Yes

Description of options

The term can be extended in line with the weather conditions for the time of year.

II.2.12) Information about electronic catalogues

Tenders must be presented in the form of electronic catalogues or include an electronic catalogue

Section III. Legal, economic, financial and technical information

III.2) Conditions related to the contract

III.2.3) Information about staff responsible for the performance of the contract

Obligation to indicate the names and professional qualifications of the staff assigned to performing the contract

Section IV. Procedure

IV.1) Description

IV.1.1) Type of procedure

Open procedure

IV.1.8) Information about the Government Procurement Agreement (GPA)

The procurement is covered by the Government Procurement Agreement: No

IV.2) Administrative information

IV.2.2) Time limit for receipt of tenders or requests to participate

Date

25 September 2026

Local time

5:00pm

IV.2.4) Languages in which tenders or requests to participate may be submitted

English

IV.2.6) Minimum time frame during which the tenderer must maintain the tender

Tender must be valid until: 31 March 2027

IV.2.7) Conditions for opening of tenders

Date

29 September 2026

Local time

3:00pm

Place

Civic Hall

Market Street

Nantwich

CW5 5DG

Section VI. Complementary information

VI.1) Information about recurrence

This is a recurrent procurement: No

VI.2) Information about electronic workflows

Electronic ordering will be used

Electronic invoicing will be accepted

Electronic payment will be used

VI.4) Procedures for review

VI.4.1) Review body

Nantwich Town Council

Nantwich Civic Hall

Nantwich

CW5 5DG

Email

samantha.roberts [at] nantwichtowncouncil.gov.uk

Telephone

+44 1270619224

Country

United Kingdom

Internet address