TRADE PACKAGE TP-01 [FIRE WALLS/ METAL STUD/ WALL …

ASSET AND FACILITIES MANAGEMENT PROPERTY SERVICES

FIFE COUNCIL

TRADE PACKAGE TP-01 [FIRE WALLS/ METAL STUD/ WALL LININGS] V3.0

CA5150111_Phase 3 Depot Project - Glenrothes

Release: V_3.0

First drafted date: 24/01/11

Author: CL/ NW

Checked: CL/ NW

Status: TENDER

Document Number: CA5150111_8.2.13_TP-01

Document History Document Location - The source of this document is on Property Services network in location: N:\Client\Corporate\Glenrothes\10073300 - Bankhead Facility\5150111 - Adaptation & Fit Warehouse Space\Docs\08 Pre-Contract\8.2 Design team\8.2.1 CA\8.2.13 Specification Doc's Revision History Revision date

Previous revision date

Summary of Changes By Checked

24/01/12 1.0 Preliminary Issue CL/NW CL/NW

17/04/12 2.0 Adjustments following team review /status amended to Tender

CL CL/NW

24/05/12 3.0 MP8 replaced with MP7A in spec. CL/KA CL/KA

Distribution - This document has been distributed to: Name Title Date of Issue Version

JL Project Manager 24/01/12 1.0

BB, CW, PQ, JG Cost Team 24/01/12 1.0

PP, SK, JC, IS, RH Design Team 24/01/12 1.0

CA, PG Senior Manager/ Project Client Rep 24/01/12 1.0







CA5150111 - Bankhead Ph3 TP-01_METAL STUD-WALL_v3.0.doc/ Specification

Asset and Facilities Management Services > Property Services of 29

Approvals - This document requires the following approvals (signed approval forms are filed in the Management section of the project file): Name Title Signature Date of Issue Version

John Lilley

Project Manager



Performance Specification Metal Stud Partitions and Linings

Contents Scope Of Work

101 General

102 Related Documents

103 Locations

General Items

201 Installer

203 Pre-lnstallation Meeting

205 Pre-lnstallation Inspection

206 Installation

209 Quality Assurance Supervisor 210 Maintenance Manual

213 Difficult Access Areas

215 Protection and Cleaning

216 Replacement

217 Defects Inspections

218 Design

220 Drawings

221 Builders Work Drawings

222 Installation Drawings

223 Shop / Fabrication Drawings 224 As-Built Drawings

225 Architect's Comments on Drawings

240 Submittals and Samples

245 Method Statement 250 Manufacture

255 Warranty

260 Storage and Handling

275 Electrolytic Action



Types of Partition / Wall Lining

310 Metal Stud Partition (MP1).


312 Independent Wall lining System (MP3).



315 Metal Stud Partition (MP6)

316 Independent Wall lining System (MP7)



319 Independent Wall lining System (MP10).

340 Glazed partitions to offices & meeting rooms

Workmanship

410 Generally 415 Joints 420 Horizontal Joints 421 Horizontal joints (2 layer boarding)

425 Framing of Openings

430 Constructing Metal Stud Partitions 432 Metal Stud partitions formed from Double Studs

435 Fixing Bay Linings 440 Cavity Barriers 470 Taped Seamless Finish

480 Internal Air Pressures 490 Dwangs

500 Metal suspended ceiling framing

510 Fixing plasterboard to metal supports

520 Rigid bead stops

530 Bead stops generally



Scope Of Work

101 The Work Package Contractor shall be responsible for the detailed design, supply and construction of the following to satisfy the performance requirements as detailed in this specification, on the design intent drawings and the current British Standards and Codes of Practice;

The scope of work includes, but is not limited to:-

1. Complete Metal Stud Partitions of various heights, widths & constructions

2. Complete Independent Plasterboard wall linings to blockwork and cladding.

3. Safe Removal/ Relocation/ Diversion/ Alteration of all existing bracing systems, M&E services/ equipment, pipe work, cabling, ductwork, rails/ etc…& any other obstructions in order to allow installation of trade package system[s].

4. Secondary steel support members for doors and other openings. 5. Additional steelwork, bracing, twangs, fixing straps/ members, bolts,

grommets etc. 6. Skirting trims and plates to all partitions. 7. Deflection heads in all metal stud partitions, in accordance with

the latest edition of the British Gypsum 'White' book or equivalent/ equal and approved.

8. Fire protection/ sealing/ collars/ Fire tube [fire protection & insulation to pipes] is to be designed and fitted by the sub-contractor and shall include all secondary steelwork necessary to ensure structural stability in accordance with Fire Engineers Recommendations/ report.

9. Design materials and workmanship shall comply with relevant current British Standards, Codes of Practice and all statutory requirements.

10. Complying with Acoustic Consultants recommendations/ report. 11. Complying with Fire Engineering Consultants recommendations/

report.

102 Related Documents

This specification should be read in conjunction with the following;

A The Preliminaries [General conditions] B Tender Drawings C Specification for Z20 / Fixings and adhesives.



103 Locations The locations are as indicated on the drawings accompanying the Tender.

• (22)001-06 - Ground floor new partition proposals

• (22)002-05 - 1st Floor new partition proposals

• (22)003-03 - Partition types



General Items

201 Installer

The Trade Package contractor will be trained, approved and licensed by

the partition system manufacturer and will be required to give proof of the

same.

203 Pre-lnstallation Meeting

Prior to the installation of the partitioning, the Trade Package Contractor

shall meet at the Project site to review the materials selections, application

procedures and co-ordination of the work with other trades.

Meeting shall include the Construction Manager, Architect, The Trade

Package Contractor, and other Trade Package Contractors whose work

requires coordination with this trade package.

205 Pre-lnstallation Inspection

Prior to commencement of installation the Trade Package Contractor

shall examine substrate and adjoining construction and conditions under

which work is to be installed. The Trade Package Contractor shall not

proceed with the work until any unsatisfactory conditions have been

corrected. By commencing the installation the Trade Package Contractor

is deemed to have accepted the existing conditions as satisfactory.

207 Installation

Set out accurately to ensure frames, panels, fascias and doors are plumb,

level and accurately aligned.

Do not cut, plane or sand pre-finished surfaces except where shown on

drawings or otherwise agreed with CA Representative.

Fix securely as section Z20, using manufacturers fixing components

with out causing distortions to frames, panels and doors.

209 Quality Assurance Supervisor

The Trade package Contractor shall nominate their Quality Assurance

representative who shall direct the installation of the systems/ components

to ensure quality standards are achieved. The Quality Assurance

Supervisor shall be named with the Tender return and shall not be

changed at any time thereafter without the consent of the Construction

Manager.



210 Maintenance Manual

The Trade Package Contractor shall state in his detailed Specification,

submitted with the Tender, any maintenance required to ensure the

performance of the Works, so that a realistic evaluation can be

made by the designers of maintenance work required.

A Maintenance Manual shall be prepared by the Trade Package

Contractor which shall give details of all work required to maintain the

works, consistent with the performance and other requirements of this

specification and which must clearly state the following:

a) Method of Maintenance.

b) Any sequence related to maintenance.

c) Identification of parts requiring maintenance, giving

reference to location of the item on record drawings, together

with manufacturer's reference numbers, addresses and

telephone numbers of firms from whom materials or parts can

be obtained.

The Works shall not be accepted as completed until three copies of the

Maintenance Manual have been submitted to the Construction Manager in

a form approved by the Construction Manager.

213 Difficult Access Areas

The Trade Package Contractor shall consider well in advance any

problems of access to areas to be protected, bearing in mind the need to

achieve complete integrity of the fire protection.

215 Protection and Cleaning

The Trade package Contractor will be held responsible for the protection of

all adjacent works. Any damage caused to adjoining works shall be made

good at the Trade Package Contractors expense.

The Trada Package Contractor is responsible for ensuring that the v;orks

are kept clean and tidy. At the end of each day all debris including offcuts

from studs, boards etc shall be collected by the Trade Package contractor

and deposited in skips provided by the Construction Manager.

Do not remove protective packaging/covering until just before

components are require for fixing. Stack doors and panels flat on

bearers and separated by spacers where necessary to prevent

damage to or from projections.

Keep completed cubicles clean, dry and adequately protected from



damage until Practical completion.

216 Replacement

The Trade Package Contractor shall replace any boards or components

which are broken, dented or otherwise damaged and causing technical

performance or visual impairment.

217 Defects Inspections

The Work package contractor is responsible for carrying out thorough

defect inspections and rectifying defects before offering the Works to the

Construction Manager for acceptance as complete, if, during the

inspection procedure it becomes obvious that a thorough defects

inspection has not been carried out by the Trade Package contractor then

the inspection procedure shall be immediately suspended until such time

as the Construction Manager is satisfied that the Trade Package

Contractor has effectively undertaken his responsibilities.

218 Design

The contractor shall be responsible for the detailed design of the

complete partitions and wall linings installation which shall be fit for the

purpose for which it is intended.

Deflection heads to be incorporated in all metal stud partitions, in

accordance with the latest edition of the British Gypsum 'White' book or

equivalent/ equal and approved.

Fire tube [fire protection & insulation to pipes] is to be designed by the

sub-contractor and shall include all secondary steelwork necessary to

ensure structural stability.

Reference should be made to the Architects design intent drawings along with the acoustic and fire engineer consultant reports.

It is a condition that the contractor shall guarantee his design, workmanship

and construction of all elements within the contract.

The contractor's design, material and workmanship shall comply with with all relevant current British Standards, Codes of Practice and all statutory requirements especially BS 476 : All relevant sections and their amendments.



220 Drawings

The drawings issued with the Trade Package are indicative only for tendering.

The Trade Package Contractor shall have included in his tender for all and

any costs associated with the development of details and materials to

enable the system to achieve the performance requirement of his

specification. The Trade Package Contractor shall submit drawings along with the returned Tender with sufficient detail shown to enable the Architect to check during the tender assessment period that the design is being met by the Tenderer.

The Trade Package Contractor shall submit drawings detailing all aspects of the works to the Construction Manager. These drawings shall be

submitted timeously to allow comment, correction and re-submittal to

take place within the Programme.

The details issued with the Tender documents are indicative only and

shall be adapted by the Trade Package Contractor. The Trade Package

Contractor shall provide the following:

Builder's Work Drawings Installation Drawings Shop / Fabrication

Drawings As-Built Drawings

221 Builder's Work Drawings

Drawings and/or schedules showing architectural and/or structural work

required by the Trade Package Contractor, but executed by others, and

necessary to facilitate the execution of the Works and their integration into

the remainder of the Works.

Provide such drawings appropriate to the stage of design development to

which they relate and include, inter alia, requirements for foundations,

bases and supporting structures for plant or equipment, holes through the

structure, fabric and finishes, ducts and trenches, fixings to be made into

or onto the structure. The Trade Package Contractor is to indicate all

loadings likely to be applied to the structure, either via fixings or bases

and plinths. The Trade Package Contractor is to ensure that his design

resolution and installation does not exceed maximum loadings. The Trade

Package Contractor shall obtain from the Construction Manager the

maximum loadings.

222 Installation Drawings

Drawings based on the Contract Drawings. The Installation Drawings shall

show the development of information for the whole of the Works. Ensure



such drawings and details relate and co-ordinate with all drawings for which

the Trade Package Contractor is responsible.

The Trade Package Contractor shall inform the Construction Manager

before changing any component or detail of installation shown on the

Contract Drawings, or described elsewhere in these documents. At the

time, notify the Construction Manager of the total effect of these changes.

223 Shop / Fabrication Drawings

Drawings developed from the Installation Drawings for the purpose of

defining how elements and components of the Works are to be fabricated

and assembled.

224 As-Built Drawings

The Trade Package Contractor shall provide the "as-built drawings"

on completion of the work and until receipt of same the Works will not be

accepted as complete.

Drawings shall be standard size A1 or A3. Adequate paper prints of the

drawings shall be submitted for comment and once the drawings are

satisfactory they shall be provided as final drawings on DVD/ CD media in

DWG/ DXF format suitable for editing by AutoCAD software – [version

2007 or greater]. Three paper and three electronic copies of the final

drawings shall be provided.

During the course of the works the Trade Package Contractor shall

maintain on site an up-to-date, fully detailed record of all changes to

facilitate easy and accurate preparation of the As-Built Drawings and to

ensure these drawings are, in all respects, a true record of the installation.

The Work Package Contractor shall allow the Construction Manager and

the Architect/ CA access to his site office to inspect the record

drawings showing changes.

225 Architect's/ CA Comments on Drawings

The Architect's/ CA comments on the Trade Package Contractor's

information are conditional and do not relieve the Contractor of any

responsibility for the complete system. The Architect/ CA checking of any

submission is only to ensure general conformance with the design concept

and the information contained in the Contract documents.

The Trade Package Contractor is responsible for:-

� Any errors in his drawings

� Confirming and correlating all quantities

� Confirming and correlating all dimensions on site



� Selecting fabrication processes

� Deciding on construction techniques

� Design

� The satisfactory performance of his work

240 Submittals and Samples Submittals

The Trade Package Contractor shall provide 3 copies of the following with returned Tender:

A Manufacturer's technical information including any test data.

B Manufacturer's installation instructions.

C Manufacturer approved typical application details.

D Detailed specification including board thickness, material weights and densities.

E Material Safety Data Sheets [MSDS]/ for all materials. [COSHH reg’s.]

F Agreement Certificates

G Fire Test/s Certificates

Samples

The Trade Package Contractor shall submit samples of all components to

illustrate finishes and product quality. The samples shall be supplied at

the Post Tender interview.

Any further samples of materials, fittings and finishes required by the

Construction Manager shall be submitted to the Construction Manager for

acceptance, timeously and in line with the programme of works.

The Construction Manager retains the right to reject items if the samples

do not conform to the required standards, or to condemn items supplied to

the site if they do not compare with the approved samples.

The Construction Manager acceptance of samples does not release the

Trade Package Contractor of his design responsibility for the complete

system.

245 Method Statement

Due to existing floor to ceiling heights [ i.e. up to 11.3m to underside of roof steelwork] ‘Working at height’ is identified as a significant risk for this

Work Package.



The Work Package Contractor shall provide a method statement for the

safe installation of the works satisfying the working at height regulations.

The method statement shall be provided prior to the Post-Tender interview.

250 Manufacture

Like items of materials provided here under shall be the end products of

one manufacturer in order to achieve standardisation of appearance,

maintenance and replacement.

255 Warranty

The Work Package Contractor shall guarantee the design, workmanship

and installation of all elements within the Sub-Contract so that the result is a

system having a minimum life of 25 years.

The guarantee is subject to the Client maintaining the completed works in

accordance with the maintenance manual to be supplied by the Trade

Package Contractor. Subject to the Client complying with the above

conditions then, should failure of the works occur within 25 years the

Trade Package Contractor shall rectify the failure free of charge or

reimburse the employer for any cost incurred in rectification.

A sample copy of the guarantee shall be provided at Tender return.

An executed copy of the guarantee shall be provided prior to Practical Completion.

260 Storage and Handling Storage

All materials shall be stored in a clean secure, heated and ventilated area in accordance with the manufacturer's printed instructions.

Handling

All materials shall be handled in accordance with the manufacturer's

printed instructions. All safety precautions recommended by the

manufacturer shall be complied with, in particular the Trade Package

Contractor shall ensure that workers and work areas are adequately

protected from health and fire hazards arising from handling, material

cutting etc.

275 Electrolytic Action

The Trade package Contractor shall ensure that electrolytic action does

not occur.



Types of Partition / Wall Lining

310 Metal Stud Partition (MP 1)

WIDTH: 310mm NOM

BOARDS: 2 x 15mm Fireline Board – both sides

FRAMING: 250mm wide M16 metal studs and channels recommended for the purpose by the Specialist framing/

board manufacturers, fabricated from galvanised mild

steel sheet to BS 2989, designation Z2 G275N and

pasivated stud thickness unless otherwise stated 1.6

mm. Include for all necessary accessories and fixings.

SCREWS: Zinc or cadmium plated, self drilling and tapping with countersunk heads, size 40 mm.

FINISHING: Taped, seamless finish [full height]

BASE : Existing Concrete slab

STUD CENTRES: 400mm [ include for 2 lines of blocking

restraint] As per board manufacturers recommendations.

FIRE RESISTANCE: 120mins – [refer to fire Engineers Report.]

ACOUSTIC INSULATION: To satisfy RW 55 db rating. [Refer to

Acoustic Consultants Report.]

50mm Isover APR 1200 insulation in cavity. Include for all necessary accessories and fixings.

MAXIMUM HEIGHT: 9000mm




WIDTH: 280mm NOM









BASE : Existing Concrete Slab STUD CENTRES: 400mm [ include for 2 lines of blocking

restraint]








312 Independent Wall Lining to Cladding (MP 3)

WIDTH: N/A

BOARDS: 15 mm Duraline – 1 side

FRAMING: Trade contractor to utilise existing metal stud partition. Trade Contractor to investigate and confirm findings in their tender report – see below.




STUD CENTRES: As per board manufacturer’s

recommendations. FIRE RESISTANCE:, 120mins including existing build up

[refer to fire Engineers Report.]

ACOUSTIC INSULATION: none


Please note: The existing partition as above requires repair work.

The Trade Package Contractor shall be responsible for the detailed design of the overall partition including the new wall linings [&

repair work] and shall be fit for the purpose for which it is intended

and consistent with the performance and other requirements of this

specification.

The Trade Package Contractor shall state in his detailed Specification,

submitted with the Tender, a report detailing the extent of the

proposed repair works.




WIDTH: 310mm NOM










STUD CENTRES: 400mm [ include for 2 lines of blocking










WIDTH: 260mm NOM










STUD CENTRES: 600mm [ include for mid span blocking










WIDTH: 230mm NOM










STUD CENTRES: As per board manufacturers

recommendations.


ACOUSTIC INSULATION: To satisfy RW 45 db rating.

[Refer to Acoustic Consultants Report.]




316 Independent Wall Lining to Cladding (MP 7)

WIDTH: N/A

BOARDS: 2 x 15 mm Fireline Board – 1 side









STUD CENTRES: 400mm/ As per board manufacturer’s

recommendations. FIRE RESISTANCE:, 60 mins [refer to fire Engineers Report.]







316 Independent Wall Lining to Cladding (MP 7A)

WIDTH: N/A

BOARDS: 2 x 15 mm Fireline Board – 1 side









STUD CENTRES: 400mm/ As per board manufacturer’s

recommendations. FIRE RESISTANCE:, 60 mins [refer to fire Engineers Report.]








WIDTH: 230mm NOM








FINISHING: Taped, seamless finish [full height of boards]

BASE : Existing Concrete Slab STUD CENTRES: 600mm [ include for mid span blocking

restraint]








319 Independent Wall Lining to Blockwork walling (MP 10)

WIDTH: N/A

BOARDS: 2 x 15 mm Fireline – one side

FRAMING: Line 15mm off blockwork wall with 70M12 metal studs at 600mm c/c with mid span blocking restraint. Head Track = 74M20 with 70M12 nogging pieces Base Track = 74M12



BASE : Existing Concrete slab STUD CENTRES: 600mm - As per board manufacturer’s

recommendations. FIRE RESISTANCE:, 60mins including blockwork wall

[refer to fire Engineers Report.] ACOUSTIC INSULATION: To satisfy RW 45 db rating. [Refer to






320 Independent Wall Lining to Blockwork walling (MP 10A)

WIDTH: N/A

BOARDS: 2 x 15 mm Fireline – both sides

FRAMING: Line 15mm off blockwork wall with 70M12 metal studs at 600mm c/c with mid span blocking restraint. Head Track = 74M20 with 70M12 nogging pieces Base Track = 74M12



BASE : Existing Concrete slab STUD CENTRES: 600mm - As per board manufacturer’s

recommendations. FIRE RESISTANCE:, 60mins including blockwork wall

[refer to fire Engineers Report.] ACOUSTIC INSULATION: To satisfy RW 45 db rating. [Refer to






340 Glazed Partitions/windows to offices & meeting rooms

Drawing Reference(s): Refer to Architects drawings

Manufacturer and reference: Thrislington or equal and approved Head

Condition: Fix to framing of metal stud partition Glazing: Double glazed,

clear glass with integral blinds, non-fire rated Other requirements: Polyester

powder coated white RAL 7037

Refer to Acoustic Consultants Report.



Workmanship

410 Generally

Plasterboard

To BS 1230: Part 1 with exposed surface suitable to receive direct

decoration.

Fixing, jointing and finishing materials and accessories, where not

specified otherwise, to be as recommended by plasterboard

manufacturer. Operatives to be properly trained for partitioning and dry

lining work. Fix boards only in areas which have been made weather tight.

Prevent frost damage.

Cut boards neatly and accurately without damage to core of tearing of

paper facing. Keep cut edges to a minimum and position at internal

angles wherever possible. Mask with bound edges of adjacent boards at

external corners.

Fix boards securely and firmly to suitable prepared and accurately

levelled backgrounds. Set heads of fastenings in a depression; do not

break paper or gypsum core. Finish neatly to give flush, smooth, flat

surfaces free from bowing and abrupt changes of level.

Do not use damaged boards.

415 Joints

Tapered edges of boards to be lightly butted. Leave a 3 mm gap where

cut/unbound edges occur.

420 Horizontal Joints

Will not be permitted in surfaces exposed to view except where height of

wall exceeds maximum available length of board. Agree positions of joints

where not specified.

421 Horizontal Joints (2 Layer Boarding)

In two layer boarding, where permitted, to be offset by at least 600 mm.

Ensure that noggings are positioned to support horizontal joints in outer

layer of boarding.

425 Framing Of Openings

Will be designed by the Work Package Contractor who will provide any

secondary steelwork necessary. Openings for doors should be designed

to withstand a horizontal load of 50 kg/m2. Door installation does not form



part of this package.

430 Constructing Metal Stud Partitions

Studs at wall junctions and floor/soffit channels to be fixed securely at 600

mm centres.

Position studs at equal centres, maintaining sequence across openings.

Provide additional studs as necessary to ensure support to all vertical

edges of boards.

Vertical joints on opposite sides of partitions to be staggered.

When more than one layer of plasterboard is to be applied, stagger

joints between layers.

Fix boards to each stud and along all edges with proprietaiy screws at not more than 300 mm centres and not less than 10 mm from the edge of the board. Set heads in a depression; do not break paper or gypsum core.

432 Metal Stud partitions Formed From Double Studs To be cross-braced at 600 mm centres with bracing twice screwed at each end.

435 Fixing Dry Linings Set out furrings vertically, at specified centres and adjacent to angles and openings. Bed in 200 mm long dabs of adhesive at 450 mm centres. Bed short lengths of furring horizontally to provide continuous support to top and bottom edges of boards. Accurately align all furrings to a true, vertical plane, ensuring that specified cavity width is achieved. Working from the centre of each board, screw to all furrings at not more than 300 mm centres and not less than 10 mm from the edge of the board. Set heads in a depression; do not break paper of gypsum core.

440 Cavity Barriers

Accurately cut and fit boards at perimeter and around pipes, ducts, etc. Seal any gaps with mineral wool tightly packed to prevent penetration of

smoke and flame.

470 Taped Seamless Finish

Lightly sand cut edges of boards to remove paper burrs. Apply PVAC

sealer to exposed cut edges of boards and any other plaster surfaces to

which tape is to be applied.



Fill all joints and gaps and cover with continuous lengths of Gyproc Speed

tape, fully bedded and for the full height of the partitions.

When set, cover with joint finish, feathered out to give a flush, smooth,

seamless surface. Apply two coats to joint finish at external angles.

Jointing materials to be to BS 6214.

Spot fill nail/screw depressions with joint filler to give a flush surface. Fill

minor indents and after joint, angle and spotting treatments have dried,

apply surface finish to give a continuous consistent texture to surface of

boards.

480 Internal Air Pressures

The partitions shall be designed to withstand internal air pressure

differences created by wind forces.

The Trade Package Contractor's attention is drawn to the internal wind

loadings as defined below by the Structural Engineer 22/2/12

“Allow for an internal pressure (+/-) 0.54kN/m2. Wind load ‘q’ = 1.14kN/m2.”

Liaise with Construction Manager to establish extent of relevant partitions.

490 Dwangs

Supply sufficient dwangs/ ply back boards to support wall mounted fixtures/fittings.

500 Metal Suspended Ceiling Framing

Install using components, accessories and methods recommended by the

board manufacturer.

Set out perimeter channels, hangers and sections to give a framework

which is accurately aligned and level. Fix securely with additional framing

and stiffening at upstands, partition heads, access hatches, etc. to give a

stable ceiling.

510 Fixing Plasterboard to Metal Supports:

Fix securely to all supports, working from the centre of each board, using

proprietary drywall screws at the following maximum centres:

Ceilings: 230mm centres - reduced to 150mm at board ends and at lining

perimeters, where recommended by the board manufacturer.

Position screws not less than 10mm from the edge of the board.

Countersink screw heads, do not break paper or gypsum core.



Type and length of screws, as recommended in BS 8212, section 2.2.3,

unless specified otherwise.

520 Rigid Bead Stops:

Material: Galvanised steel to BS 6452 Part 1

530 Beads/Stops Generally

Cut neatly using mitres at return angles. Fix securely using longest possible lengths, plumb, square and true to line and level, ensuring full

contact of wings with background.

After joint compounds/plasters have been applied, remove surplus material

while still wet from surfaces of beads which are exposed to view.

TRADE PACKAGE TP-01 [FIRE WALLS/ METAL STUD/ WALL …

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