4284ST
STOTHERM EIFS CLADDING
1
GENERAL

If you have pre-customised this work section using the "questions and answers" provided as part of the downloading process, it may be necessary to amend some clauses to suit the final project-specific version.

 

The section must still be checked and customised to suit the project being specified, by removing any other irrelevant details and adding project-specific details and selections.

 

This section relates to Stoanz Ltd exterior Sto EIFS plaster rendering systems, applied by hand, or pump over EIFS polystyrene cladding. Stoanz Ltd products must be installed by an approved applicator.

Modify or extend the above description to suit the project being specified.

1.1
RELATED WORK

Refer to ~ for ~

Include cross references to other sections where these contain related work.

1.2
ABBREVIATIONS AND DEFINITIONS

Refer to the general section 1232 INTERPRETATION & DEFINITIONS for abbreviations and definitions used throughout the specification.

 

The following abbreviations apply specifically to this section:

EIFS

Exterior Insulation and Finish Systems

EPS

Expanded Polystyrene

MPNZA

Master Painters New Zealand Association

WANZ

Window Association of New Zealand

1.3
DOCUMENTS

Refer to the general section 1233 REFERENCED DOCUMENTS. The following documents are specifically referred to in this section:

NZBC B2/AS1

Durability

NZBC E2/AS1

External moisture

AS/NZS 1170

Structural design actions - General principles

AS 1366.3

Rigid cellular plastics sheets for thermal insulation - Rigid cellular polystyrene - Moulded (RC/PS - M)

NZS 3604

Timber-framed buildings

AS/NZS 4858

Wet area membranes

WorkSafe NZ

Guidelines for the provision of facilities and general safety in the construction industry

MPNZA

Health and Safety Programme

Health and Safety at Work Act 2015

Delete from the DOCUMENTS clause any document not cited. List any additional cited documents.

 

RELATED DOCUMENTS

Refer to the following related documents when preparing this section:

AS 1366.4

Rigid cellular plastics sheets for thermal insulation - Rigid cellular polystyrene - Extruded (RC/PS - E)

AS/NZS 2311

Guide to the painting of buildings

NZS 4251.1

Solid plastering - cement plasters for walls, ceiling and soffits

BRANZ BU 314

Removing paint coatings from houses

BRANZ BU 570

Ground clearances

WANZ Installation Guide: The WANZ Guide to Window Installation as described in E2/AS1 Amendment 6.

1.4
MANUFACTURER'S DOCUMENTS

Stoanz Ltd documents relating to work in this section are:

Sto Product Manual with specification and CAD details

Sto Technical Data Sheets

BRANZ Appraisal 478 - StoTherm Cavity System

BRANZ

Test No DC1182 Sto Flexyl waterproofing to AS/NZS 4858

BRANZ

Test FH4008.1 heat release test - performance A(unrestricted)

BRANZ StoTherm System ULS wind pressure of 2.5kPa

 

Materials and execution to Stoanz Ltd specification except where varied by this specification and supported by architectural detailing.

 

Copies of the above literature are available from:

Web:

www.sto.co.nz - Building with Sto

E-mail:

info@sto.co.nz - peter@sto.co.nz

Telephone:

0-4-801 7794

Fax:

0-4-384 9828

It is important to ensure that all personnel on site have access to accurate, up to date technical information on the many products, materials and equipment used on a project.  In most cases individual products are not used in isolation, but form part of a building process.  Also a particular manufacturer's and/or supplier's requirements for handling, storage, preparation, installation, finishing and protection of their product can vary from what might be considered the norm.  Access to technical information can help overcome this potential problem.

Warranties

Use for listing all warranties relating to this section.  Supplier and manufacturer warranties are those that are freely offered by the supplier or manufacturer, similarly installers and applicators.  They are usually in their standard form and subject to their terms and conditions. Check the general section 1237 WARRANTIES for the date of commencement of warranties; which is normally practical completion of the contract, although not all suppliers, manufacturers, installers or applicators will agree to this.  Refer to the chosen conditions of contract as it may also contain information on warranties.

1.5
WARRANTY

Warrant this part of the work under normal environmental and use conditions against failure of materials and execution.  The Sto Applicator must complete the Sto quality assurance compliance procedure form and applicator warranty.  The StoTherm and StoTherm Classic Plaster Systems are warranted as follows:

Materials:

15 years from date of practical completion

Execution:

5 years from date of practical completion

Requirements
1.6
QUALIFICATIONS

Use only applicators registered to apply the Sto render systems.

1.7
NO SUBSTITUTIONS

Substitutions are not permitted to any specified Sto render system.

1.8
FINISH SAMPLE

Submit one 300mm x 300mm standard panel of the selected finish texture and colour for approval.  Obtain signature of acceptance on sample and return to the approved applicator.

In some instances a larger sample panel may be warranted.

1.9
INFORMATION FOR OPERATION AND MAINTENANCE

Provide Sto Maintenance Schedule instructions before practical completion of the contract for issuing to the building owner.

A copy of the maintenance instructions may be required by the Building Consent Authority with the building consent application,

1.10
HEALTH AND SAFETY

Refer to the requirements of the Health and Safety at Work Act 2015 and WorkSafe NZ:  Guidelines for the provision of facilities and general safety in the construction industry.

If the elimination or isolation of potential hazards and risks is not possible then minimise hazards and risks in this work on site by using the proper equipment and techniques as required in the MPNZA Health and Safety Programme.  Supply protective clothing and equipment.  Inform employees and others on site of the hazards and risks, and put into place procedures for dealing with emergencies.  Obtain from Stoanz Ltd the material safety data sheets for each product.  Keep sheets on site and comply with the required safety procedures.

1.11
PRODUCER STATEMENT

Provide a producer statement from the approved Sto applicator in the form as required by the Building Consent Authority.

1.12
PROTECTION OF NEW PLASTER

Provide protection systems as required by the manufacturer to protect fresh plaster from adverse weather conditions.

Normally required curing procedures can be altered when acrylic-modified plasters (bonding agents) have been specified.  Such plasters may only need limited protection from direct sun and strong, drying winds.  Consult the manufacturer's requirements in this clause or write another.

1.13
INSPECTIONS

Allow to inspect the whole of the work at each stage.  Determine a programme for inspections including notification when each part and stage of the work is ready for inspection prior to the work commencing.

 

If requested permit representatives of Stoanz Ltd to inspect the work in progress and to take samples of their products from site.  Refer to Sto product manual.

 The level of inspection will depend on the nature of the project and will range from full for large or complex projects, through to intermittent for straightforward work, to occasional for initially establishing the standards of execution.  Refer to AS/NZS 2311 Appendix C, Inspection and Testing, for more background.

Compliance information
1.14
DURABILITY

The work covered by this part of the specification has been designed and constructed to meet the NZBC durability requirement for 15 years with a serviceability life in excess of 30 years when maintained.  Refer to the following:

BRANZ Appraisal 478 - StoTherm Cavity System

1.15
INFORMATION REQUIRED FOR CODE COMPLIANCE

Provide the following compliance documentation: -

  • Applicators approval certificate from the manufacturer / importer / distributor
  • Manufacturer's, importers or distributors warranty
  • Installer's / applicator's warranty
  • Producer Statement - Construction from the applicator / installer
  • Other information required by the BCA in the Building Consent Approval documents.

List the Producer Statements - Construction (PS3) required from installers that are required as a condition of carrying out this work.

List also Producer Statements - Construction Review (PS4) required from consultants to be engaged by the Contractor.

Producer Statement - Design (PS1), may be required where certain design work is undertaken by the Contractor or manufacturer / importer / distributor.

Performance
1.16
PERFORMANCE

Accept responsibility for the structural and weather-tight performance of the exterior render application.

1.17
FIXINGS, WIND

Design and use the fixings appropriate for the wind zone (R) and topographical classification (T) of this site and building height; as required by NZS 3604 and the wind loads on various wall areas as given by AS/NZS 1170.

Modify this clause depending on whether NZS 3604, AS/NZS1170 is being used as a design basis for the project.  Refer to Stoanz Ltd technical information for nail centres required for the building wind zone.

1.18
TESTS

Refer to the following BRANZ Tests:

  • Test FH4008.1 Heat release test - performance A (unrestricted).
  • Test No DC1182 Sto Flexyl waterproofing to AS/NZS 4858.

BRANZ StoTherm System ULS wind pressure of 2.5kPa.

2
PRODUCTS

WARNING

Mutually exclusive clauses follow. Check your chosen cladding system and select accordingly

Materials

 

StoTherm Plaster System SS105 (Cement based reinforcement plaster)

CHOOSE EITHER StoTherm Plaster system or StoTherm Classic Plaster system and DELETE the system not required

2.1
STOTHERM PANELS

Rigid cellular polystyrene made from fire-retardant virgin beads to AS1366.3 class H.

40mm and 60mm thick EPS H grade polystyrene StoTherm panels.

Delete sheet thickness not required.

2.2
STOTHERM EPS CAVITY BATTENS

Self adhesive rigid cellular polystyrene 20mm cavity battens made from fire-retardant virgin beads to AS 1366.3.

2.3
STOLEVELL UNI PLASTER

Cement based mineral reinforcing mortar with calibration grain.  The dry bag material contains mineral aggregates, water retention agents, fibre reinforcement, powdered resins and enhancements.

2.4
STO MESH

Alkali-resistant 165g/m² fibreglass mesh in 50 metre rolls.

2.5
STO STOPLEX W PRIMER

Aqueous acrylate universal consolidating sealer with siloxane additive.

2.6
STOLIT K COLOURED FINISHING RENDERS

Four different coloured finishing renders (as selected) in a pail. Containing organic aggregates and fibres bound in a polymer dispersion with enhancement agents and colouring pigments.  Refer to SELECTIONS for texture and colour.

Stolit K 1, 1.5, 2, 3mm aggregate renders.

2.7
STOCOLOR MAXICRYL FACADE PAINT

Matt coloured pure acrylate facade paint; natural looking matt, hard, durable, coating with excellent resistance to weathering. Refer to SELECTIONS for colour.

Select for coating Stolit K renders.

StoTherm Classic Plaster System SS106

CHOOSE EITHER StoTherm Plaster system or StoTherm Classic Plaster system and  DELETE the system not required.

2.8
STOTHERM PANELS

Rigid cellular polystyrene made from fire-retardant virgin beads to AS1366.3 class H.

40mm, 60mm, 80mm, 100mm thick EPS H or S grade polystyrene StoTherm insulation panels.

Delete sheet thickness not required.

Note;  60mm to 100mm can be fixed with countersunk StoTherm Anchors to eliminate thermal bridging fixing spots.

2.9
STOTHERM TIMBER CAVITY BATTENS

Nominal 20mm x 45mm timber cavity battens treated to H3.1, used to prevent screw anchors crushing EPS battens.

2.10
MULTISCREED PLASTER

Lightweight cement basecoat plaster in a bag.  The material contains mineral aggregates water retention agents, adhesive compounds, fibre and other additives to form a straight, solid, basecoat plaster.

2.11
STO MESH

Alkali-resistant, 165g/m² fibreglass mesh in 50 metre rolls, or 360g/m² Sto Panzer Mesh for areas requiring extra impact resistance.

Delete type of mesh not required.

2.12
STOARMAT MESHED REINFORCEMENT PLASTER

Reinforcement plaster in a pail with a calibration grain. A  white non cement flexible meshing plaster containing organic fillers and fibres bound in a polymer dispersion to form a malleable crack resistant intermediate plaster with excellent adhesion qualities.

2.13
STOLIT K & MP COLOURED FINISHING RENDERS

Six different coloured finishing renders (as selected) in a pail. Containing organic aggregates and fibres bound in a polymer dispersion with enhancement agents and colouring pigments.  Refer to SELECTIONS for texture and colour.

Stolit K 1, 1.5, 2, 3mm aggregate renders and Stolit MP / MP Natural are sponge renders.

2.14
STOCOLOR MAXICRYL FACADE PAINT

Matt coloured pure acrylate facade paint; natural looking matt, hard, durable, coating with excellent resistance to weathering. Refer to SELECTIONS for colour.

Select for coating Stolit K renders.

2.15
PROTECTOSIL SC EASY CLEAN

Clear, invisible Silane sealer for ease of cleaning and added protection against staining of coloured sponge finishes (Note: were a clear coating is required contact Stoanz Ltd).

Select for sealing Stolit MP or MP Natural renders.

Accessories
2.16
STO EPS CAVITY BATTENS

H grade EPS castellated self adhesive cavity battens.

2.17
STO QUADER BOARD

Non compressible anchor board for supporting penetrations through the cladding.

2.18
FLASHINGS

Head and any other required flashings made from powder coated aluminium, stainless steel or uPVC for both recessed and faced fixed timber, aluminium and uPVC joinery to NZBC E2/AS1, 4.0 Flashings.

2.19
STO FLASHINGS & COMPONENTRY

Sto uPVC Flashings are to be used for weatherproofing the exterior plaster at joinery openings, transitions, junctions, terminations and for forming corners and drip edges.

2.20
STO FLEXYL WATERPROOFING

Waterproof membrane conforming to AS/NZS 4858 for waterproofing balustrades, parapet tops, horizontal ledges and foundation splash zones.

Use on EPS cladding as a waterproof membrane and for balustrades, sloping horizontal ledges and waterproofing masonry foundations as per Sto details

2.21
CONTROL JOINTS

Sto 8mm - 12mm uPVC control joints, for vertical or horizontal control joints.

2.22
STO JOINT SEAL TAPE

An expanding polyurethane foam impregnated inseal tape for weatherproofing joints.

2.23
STO ADHESIVE FOAM

For filling any voids in sheet joints.

2.24
SEALANT

BRANZ appraised modified MS sealant.

2.25
STO SPIRAL FIXINGS

For fixing fitments that have a total face load of less than 8 kg.

Fitments such as downpipe brackets, lighting and security fittings.

2.26
CLADDING FIXING NAILS AND STOTHERM ANCHORS

40mm cladding:

90mm x 3.55mm galvanized flathead nails with Sto yellow washers.

60mm cladding:

110mm x 4mm galvanized flathead nails with Sto yellow washers.

60, 80 or 100mm cladding:

StoTherm 60mm, 80mm and 100mm timber anchors counter sunk and plugged with 60mm ST insulation caps to stop thermal bridging fixing spots.

Delete cladding and fixings not required.

3
EXECUTION
Conditions
3.1
DELIVERY

Keep Sto bagged plaster products dry in transit.  Take delivery of Sto plaster products in good condition.  Reject all damaged materials and immediately notify supplier in writing.

3.2
STORAGE

Deliver all materials in original unopened packaging with labels intact.  Provide dry storage on site, stack carefully, protect from mechanical damage.  Keep bagged render dry and off concrete surfaces.

3.3
PLASTERING CONDITIONS

Carry out plastering to Stoanz Ltd specification under conditions which will not adversely affect the finished work.

Refer to Sto product manual.

3.4
PROTECT

Before application of plaster, apply masking film and tape to all joinery, pipes, roofs and all areas likely to be marked by the plaster.  Use drop cloths and ground covers to keep the working areas clean.  Clean off droppings onto finished work immediately.

3.5
SUBSTRATE

Ensure the main contractor and the sub trades are aware of their responsibilities relating to the required provision of weather tight details at all junctions, penetrations and transitions including any blocking required for support (see www.sto.co.nz for details).

Do not commence work until required openings and apertures have been cut, pipes, fixtures, fixing pads and plugs have been fixed, flashings and other preparation are complete, and the building underlay has been securely fixed.  Do not commence plastering until substrate is of the required standard by the Stoanz Ltd approved applicator.  All defects in substrate must be rectified prior to application of plaster coatings commencing.

3.6
CONFIRM LAYOUT

Before commencing work confirm the layout of expansion joints and other visual detailing of the finished work.

Application
3.7
STOTHERM 40MM AND 60MM PANELS

Fit the StoTherm vented foot tray to bottom plate and then fix StoTherm panels over StoTherm EPS cavity battens. All fixings centres to be set out as per the Stoanz Ltd standard fixing layout complying with the specified wind zone. Fixings to be driven in 2 - 3mm below the surface of the panels. Panels to be fixed with Sto cladding fixings at maximum 300mm centres for 400mm / 600mm framing centres with one fixing per nogging and in between studs on the top and bottom plates, except in very high wind zones. Fixings to be at 200mm maximum centres on plates, studs and nogging. Panel joints to be straight and true. Joinery is flashed using the StoTherm uPVC 40mm / 60mm cavity jamb and sill flashings installed to the Sto CAD details. Where WANZ joinery Support Bars are used, a StoTherm uPVC 40mm / 60mm faced fixed jamb and sill flashing will need to be used at the sill to accommodate the bar.

 

As required fit Sto Quader Blocks for taps and fittings.

40mm thick EPS H grade polystyrene sheet.

60mm thick EPS H grade polystyrene sheet.

3.8
STOTHERM 60, 80 AND 100MM PANELS WITH STOTHERM ANCHORS

Fit the StoTherm tray to bottom of the StoTherm panels brick patterned over timber cavity battens that have had a vented cavity closer installed. All fixings centres are to be set out as per the Stoanz Ltd standard anchor layout complying with the specified wind zone. StoTherm Anchors shall be counter sunk 20mm below the surface of the panel using the ST Fixing Tool and plugged with ST insulation caps.

 

Panels shall be initially positioned brick patterned on the stud lines using EPS safe construction adhesive before fixing with StoThermAnchors at maximum 300mm centres for 400 / 600mm framing centres with one fixing in between studs on the top and bottom plates on 600 framing, all joints shall be straight and true Joinery is flashed using the StoTherm uPVC 40 / 60mm cavity jamb and sill flashings, installed as per the Sto CAD details. Where WANZ joinery Support Bars are used, a StoTherm uPVC 40 / 60mm faced fixed jamb and sill flashing will need to be used at the sill to accommodate the bar.

 

As required fit Sto Quader Blocks for taps and fittings.

3.9
IRREGULARITIES

Nail holes and minor surface defects to be stopped flush with StoLevell Uni mix before the StoTherm Plaster System is applied.  Any panel gaps are to be Sto adhesive foam fused.

3.10
INSTALL UPVC FLASHINGS

Adhere to the Stoanz Ltd flashing details.  Install all StoTherm uPVC joinery flashings, vented head trays, vented foot trays and end caps using an EPS safe construction adhesive as required.

Head Flashings made from powder coated aluminium supplied by main contractor for timber, aluminium and PVC joinery.  Subtrade penetrations must be flashed and sealed by that trade.

3.11
PENETRATIONS

Comply with the Stoanz Ltd flashing details.  All penetrations such as waste pipes, electrical wiring in uPVC conduits and metal plumbing piping install with a minimum 5° downward slope, through the Sto plaster system, to be sealed using a double application of MS sealant.

3.12
CONTROL JOINTS

Where shown on the drawings and to Stoanz Ltd requirements insert Sto flexible uPVC V control joints vertically and where the cladding abuts dissimilar material. Reflect exposed control joints through final coatings from substrate. Terminate the plaster reinforcing mesh each side of the Sto flexible uPVC control joint. Vertical control joints are required in EIFS walls longer than 20 metres. Horizontal joints are required at maximum 6 metres centres excluding gables without penetrations.

 

Form horizontal inter-storey closed cavity joints at third floor level using a metal flashing with a 15° outward slope.

Refer to NZS 4251.1 clause 2.1.9 Control joints and Stoanz Ltd technical data sheet and or engineers requirements.  Polystyrene shape can be planted over the joint as per the StoTherm technical details.

3.13
EPS ARCHITECTURAL DETAILING AND INTER STOREY JOINTS

Fix EPS shapes used to create detailing and or at inter storey joints after the sheets have been base mesh coated, using Gluecoat mortar applied to the shape prior to placing over the prepared sheets.  Temporary fixings may be used while the adhesive cures.  All plant on shapes to be pre-meshed or receive a StoArmat RFP mesh coat and weatherproofed especially along the top junction with a bead of MS sealant before the finishing plastering commences.

3.14
SEALANT INSTALLATION

All junctions between joinery / adjacent surfaces / differing materials sections and the plaster mesh coat and around penetrations shall be sealed with MS sealant.

Use on all plaster systems

3.15
PARAPETS / BALUSTRADE TOPS AND HORIZONTAL PLASTER SURFACES

On horizontal plastered surfaces a minimum slope of 10° is required.  On parapets and balustrades tops a polystyrene shape sloped at a minimum 10° is normally used as a capping.  Apply Sto Flexyl / Mesh waterproofing to a minimum thickness of 1.5mm followed by StoArmat RFP mesh coat and Sto plaster finishing render.  Sto Flexyl must be extended 75mm up and down adjacent vertical plaster surfaces and cover cap joints.

3.16
FINISHING

Refer to SELECTIONS for type and colour.

The choice of a light colour will help by reducing thermal movement - LRV 25% minimum.

 

WARNING

Mutually exclusive clauses follow.  Check your chosen cladding system and select accordingly

StoTherm Plaster System

Refer to Sto specification and technical data sheets for 2 different finishing systems:

  • StoTherm plaster system is not suitable for MP finishes or StoTherm 80 or 100 mm system.
  • StoTherm Classic plaster system using Sto Armat/Mesh reinforcement.

CHOOSE EITHER StoTherm Plaster system or StoTherm Classic Plaster system and DELETE the system not required

3.17
JOINERY REVEALS AND EXTERNAL CORNERS

All the joinery reveals and external corners are to have pre meshed corner angle install embedded in a StoLevell Uni plaster coat.  Where an angle cannot be used use a StoArmat mesh coat.

3.18
EPS MESHED BASE COAT PLASTER

To EPS wall cladding apply one even coat of StoLevell Uni by at approximate thickness of 2 - 2.5mm.  While StoLevell Uni is wet, lightly embed Sto mesh, ensuring adjacent drops of mesh are overlapped by a minimum of 75mm.  Lightly float the surface to ensure the mesh has been embedded onto the base coat. Allow to dry and apply one further coat of StoLevell Uni at approximately 1.5mm thick to leave an even level plane surface.  All joinery openings are meshed in StoArmat reinforcement plaster. Corners and stress points require mesh butterflies on top of the full mesh coat.  Once dry remove any slight ridging of finished StoLevell Uni surface with a Sto rasp ready for top coat.

3.19
PRIMER COAT

To clean dry StoLevell Uni plaster surface apply one coat of Sto Stoplex W primer by brush and roller to seal the surface.

3.20
FINISHING RENDERS

To all exterior plastered surfaces apply Stolit K coloured finishing render tinted to the selected colour, applied with a steel trowel gauging to the thickness of the aggregate size and finished with a plastic trowel to the requisite pattern.

Stolit K 1,1.5, 2 & 3mm aggregate finishing renders.

3.21
PAINT FINISH

Apply one coat of StoColor Maxicryl matt facade paint tinted to the select colour.

Colour must have a light reflective value (LRV) of more than 25%.

StoTherm Classic Plaster System

Sto Therm Classic plaster system using StoArmat RFP / Mesh non cement reinforcement.

CHOOSE EITHER StoTherm Plaster system or StoTherm Classic Plaster system and  DELETE the system not required

3.22
MULTISCREED BASECOAT PLASTER

To EPS cladding apply one basecoat of Multiscreed at approximate thickness of 4 - 6mm to the straighten sheets and provide a solid base.  While the Multiscreed is still curing, lightly rule the surface to ensure an even level plane surface free of hollows and deviations.

Use to create straight plane for mesh coat.

3.23
JOINERY REVEALS AND EXTERNAL CORNERS

All the joinery reveals and external corners are to have pre meshed corner angle install embedded in a StoLevell Uni plaster coat.  Where an angle cannot be used use a StoArmat mesh coat.

3.24
MESHED REINFORCEMENT PLASTER

Apply one even coat of StoArmat reinforcement plaster at approximate thickness 1.5 - 2mm.  While plaster is still wet lightly embed Sto mesh ensuring adjacent drops of mesh are overlapped by a minimum of 75mm.  Float surface to ensure mesh is lightly embedded into the StoArmat reinforcement coat. Allow to dry and apply one further coat of StoArmat reinforcement plaster at approximately 1mm thick to leave the plane even surface free of voids or deviations.  Ensure all joinery openings are meshed in StoArmat.  Once dry remove any slight ridging with a Sto rasp ready for topcoat.

3.25
FINISHING RENDER

Apply one coat of selected Stolit K or MP coloured finishing render applied with a stainless steel trowel gauging to the thickness of the aggregate size and finished with a plastic float to the requisite pattern.  Apply Stolit MP or MP Natural in two coats and finish with a float and judicial use of a damp sponge

Thickness and styles of renders varies between Stolit K- 1 / 1.5 / 2 / 3mm & Stolit MP/MP Natural - sponge.  Refer to Selections to choose required finishing render.

Refer to SELECTIONS for preferred finish.

3.26
PAINT OR SEALER COAT

Apply one coat of StoColor Maxicryl matt facade paint tinted to the selected colour on Stolit K renders, or Protectosil SC easy clean sealer on MP finishes.

Colour must have a minimum light reflective value (LRV) of 25%.

Refer to SELECTIONS for paint finish and colour.

Completion
3.27
CLEANING

Remove debris, unused materials and elements from the site relating to plaster system application.  Replace damaged, cracked or marked elements.  Leave the whole of this work to the required standard.

3.28
FINAL INSPECTION

A final inspection by project assessor of the entire finished plaster system to take place immediately after completion of the application work and any defects or subsequent damage made good immediately.

4
SELECTIONS

Substitutions are not permitted to the following, unless stated otherwise.

4.1
STOTHERM PLASTER SYSTEM SS105 (CEMENT BASED PLASTER)

Location:

~

Substrate:

~mm StoTherm Panels

Base coat:

StoLevell Uni

Mesh coat

StoLevell Uni meshed reinforcement coat

Primer coat:

Sto Stoplex W

Finishing render:

Stolit K ~mm

Paint:

StoColor Maxicryl matt facade paint

Paint coats:

One

Colour:

~

Options:

Substrate:

40mm or 60mm thick StoTherm Panels.

Finishing render:

Stolit K is a coloured finish render select 1 / 1.5 / 2 / 3mm (aggregate ).

Colour:

Refer to Sto. Colour must have a minimum light reflective value (LRV) of 25%

4.2
STOTHERM CLASSIC PLASTER SYSTEM SS106 (FLEXIBLE STOARMAT COAT)

Location:

~

Substrate:

~mm StoTherm Panels

Base coat:

Multiscreed basecoat, 4 - 6mm thick, to straighten and provide a solid base to the EPS sheet.

Mesh coat:

StoArmat meshed reinforcement plaster

Finishing render:

Stolit~

Paint:

~

Sealer:

~

Coats:

One

Colour:

~

Options:

Substrate:

40mm or 60mm nail fixed StoTherm Panels.

 

60mm, 80mm or 100mm thick StoTherm Panels using countersunk StoTherm Anchors

Finishing render:

Select render type, size and colour:

 

Stolit K is a coloured finish render select 1 / 1.5 / 2 / 3mm (aggregate )

 

Stolit MP is fine plain coloured - MP Natural is sand specked sponge render

Paint or Sealer:

Select Sto Color Maxicryl for Stolit K or Protectosil SC sealer for Stolit MP

Colour:

Refer to Sto. Colour must have a minimum light reflective value (LRV) of 25%