| Facade | External Wall Insulation | Accessories |
Sto-Rotofix Plus
Application Guide
General information
It is to be noted that the details, illustrations, general technical information
and drawings contained on the following pages only represent general
suggestions and details which serve solely to outline the essential modes
of functioning of the products concerned. No dimensional exact tolerances
apply. The applicator/client is responsible for verifying the applicability and
completeness of the system in the specific construction project concerned.
Adjacent trades are shown in schematic form only. All specifications and
details are to be adapted according to the on-site situation and do not
constitute detailed or installation planning for the respective trades. The
technical specifications and information on the products in the technical
data sheets and in the system descriptions/approvals must be observed.
2 | Contents
Contents
4
Introduction
4
5
Sto-Rotofix Plus
General EWI installation advice
6
Installation
6
7
8
9
10
11
Insertion of Sto-Rotofix Plus spiral plug into insulation
Drilling into substrate
Placing the screw dowel
Fixing Sto-Rotofix Plus
Adjusting Sto-Rotofix Plus
Finishing
12 Fixing Patterns & Details
12 EPS
13 Mineral Fibre Board
14 Articles
15 Guide
Contents | 3
Introduction
Sto-Rotofix Plus
Sto-Rotofix Plus is an innovative fixing system for mechanically fixed external
wall insulation systems onto masonry and cement particle board substrates.
The Sto-Rotofix Plus system can be used with tongue-and-groove EPS boards
or square-edged mineral fibre insulation boards.
The Sto-Rotofix Plus unit combines the ease-of-use associated with ETICS
anchors with the flexibility of a rail system.
Features & Benefits
• Provides a cavity behind the insulation board. Easily overcomes irregular
or out of tolerance backgrounds.
• Allows for post-installation adjustment of the insulation.
• Allows for post-installation inspection of the fixing pattern.
• Reduction in thermal bridging over surface mounted ETICS anchors.
• Reduction of installation time compared to a typical mechanically fixed
system installation.
• Ideal for thick or stepped insulation requirements, as fixing length is not
dependent on the insulation thickness.
• Seamless finishes possible (tolerant to deflection movement).
• Sto-Rotofix Plus is supplied with BBA certification for StoTherm Classic
onto masonry and lightweight steel frame substrates. Other StoTherm
systems are currently being assessed by the BBA.
4 | Sto-Rotofix Plus
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Introduction
General EWI installation advice
Check the state of the substrate precisely and then select the appropriate
fixing system for the external wall insulation system. The substrate must be
pre-treated as appropriate to the system.
Measure the correct temperature and given building moisture before
application. The lowest temperature allowed for the application of most
Sto products is 5°C. Sto QS products are available for winter working to a
minimum application temperature of 1°C.
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Before work begins, doors, windows, shutter boxes and horizontal
covers (e.g. window sills) must be in place and weatherproofed.
Before installation, the required materials must be organised according
to the respective stages of the installation process.
Materials stored on site must be kept in dry conditions.
All on-site factors, including projections, connections, expansion joints
and unevenness, must be clarified in advance.
Information on the use, installation and storage of system components
can be found in Sto technical data sheets and detail drawings
(available on request).
The applicable standards and regulations are to be observed at all
times, as well as the official approval for the system.
In accordance with the official approval, all system components must
be sourced from Sto Ltd.
If you have any queries regarding installation, please refer to your Sto sales
or technical representative.
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Sto-Rotofix Plus | 5
Installation
Insertion of Sto-Rotofix Plus
spiral plug into insulation
1
Create a recess in the insulation
For EPS insulation over 100mm thickness,
we recommend using a countersink milling
tool to create a recess in the insulation.
For mineral fibre board (MFB), a recess is
only recommended post-installation if the
surface is damaged.
2
Drill a hole through the insulation
Using the green jolley tool, drill a hole
through the insulation board. This helps to
reduce debris behind the cavity, which is
especially important for MFB installation.
3
Screw Sto-Rotofix spiral plug into
insulation
Ensure the drill hole is free of debris, then
screw the Sto-Rotofix spiral plug through
the insulation until it touches the substrate
using a suitable slow-speed drill. The plug
must always be inserted at a 90° angle to
the insulation board.
Note
Operations 1 to 3 can be carried out
away from the wall if required. A
frame can be constructed to support
insulation boards and provide initial
cavity offset.
6 | Sto-Rotofix Plus
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Installation
Drilling into substrate
4
Drill hole into substrate
Using the correct drill bit, drill a hole into
the substrate through the hole in the StoRotofix Plus spiral plug. Use a drill stop to
set anchorage depth.
While the drill bit is turning, ventilate the
hole several times.
For cement particle board:
Using a suitable drill with a 10mm HSS drill
bit (without hammer action), drill through
CP board / steel.
For masonry:
Use suitable drill with a 10mm hammer drill
bit to suit length. Do not use the hammer
drill function on hollow brick/block.
See article list on pg15.
For 120T/160T fixing:
Allow for 50mm embedment.
For E1/E100 fixing into existing render:
Allow 70mm into sound substrate + render
thickness.
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Sto-Rotofix Plus | 7
Installation
Placing the screw dowel
5
Insert screw dowel
Insert the appropriate screw dowel fixing
into the plug by hand. Ensure the fixing is
correctly placed using the appropriate
Sto-Rotofix Plus positioning tool.
If required, a hammer can be used on the
the positioning tool.
Grey positioning tool
For 120T/160T fixing into cement particle
board and unrendered masonry.
(50mm anchorage)
Red positioning tool
For E1/E100 fixing into rendered masonry or
aerated concrete.
(70mm anchorage + 30mm render)
Positioning tools
8 | Sto-Rotofix Plus
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Installation
Fixing Sto-Rotofix Plus
6
Screw fixing
Screw and secure the fixing into the
substrate using a suitable power
screwdriver /drill with the Sto-Rotofix
Plus Jolley tool.
Warning!
Do not secure the fixing if the wall
temperature is below 0°C
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Sto-Rotofix Plus | 9
Installation
Adjusting Sto-Rotofix Plus
7
Align the insulation
Align the insulation as required for the
project using string lines.
The distance to the wall may be:
Max. 30mm with the Sto-Rotofix Plus green
plug or max. 70mm with the Sto-Rotofix
Plus black plug.
We recommend that once insulation
thickness exceeds 140mm, the Sto-Rotofix
Plus black spiral plug should be used.
Use square end of positioning tool (grey or
red) to adjust fixing in/out.
10 | Sto-Rotofix Plus
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Installation
Finishing
8a
Fill the recess
For EPS insulation over 100mm,
the recess gap can be filled using a
Sto-Thermocap EPS pushed into place.
For MFB insulation, where the recess is not
normally formed, the gap behind the fixing
can be filled with MFB offcuts or PU foam.
For EPS/MFB 80/90mm, do not recess. Use
PU foam to rectify minor holes generated by
fixing/placement of Sto-Rotofix Plus units.
8b
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Sto-Rotofix Plus | 11
Fixing Pattern (EPS)
EPS (4 fixings / m2)
Edge
Starter Track
EPS (6 fixings / m2)
Edge
Starter Track
Fixing pattern for K90 T&G EPS
Grade
K90
Size
1000 x 500mm
Thickness
80-200mm (standard)
Height for UK > 18m (Refer to technical services)
Wind loads < 1.5 KN/m2 = 4 fixings/m2 fixing pattern *
< 2.4 KN/m2 = 6 fixings/m2 fixing pattern
> 2.4 KN/m2 = Refer to technical services
(or as specified)
*Use fixing calculator tool to determine average fixing rates per m2
12 | Sto-Rotofix Plus
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Fixing Pattern (EPS)
Window/door fixing pattern (EPS)
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Sto-Rotofix Plus | 13
Fixing Pattern (MFB)
Mineral Fibre Board (1000 x 500)
500 mm
Edge
Starter Track
Mineral Fibre Board (1200 x 600)
600 mm
Edge
Starter Track
Fixing pattern for MFB
Size
1000 x 500mm / 1200 x 600mm
Thickness
80-200mm
Height for UK > 18m
Wind loads < 1.51 KN/m2 = 8 fixings/m2 *
> 1.51 KN/m2 = 12 fixings/m2
(or as specified)
* The 1200 x 600mm MFB fixing pattern above gives 8.33 fixings/m2
14 | Sto-Rotofix Plus
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Fixing Pattern (MFB)
Window/door fixing pattern (MFB)
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Sto-Rotofix Plus | 15
Fixing Pattern (Firebreaks)
Standard detail for adhesive
firebreak
16 | Sto-Rotofix Plus
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Fixing Pattern (Firebreaks)
Standard detail for cavity firebreak
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Sto-Rotofix Plus | 17
Articles
00935-007
00935-008
00935-001
00935-002
03621-003
03622-002
03621-007
00951-001
00951-002
00951-003
00951-005
08258-008
00952-001
00952-002
00952-003
Sto-Rotofix Green 120T fixing
Sto-Rotofix Black 160T fixing
Sto-Rotofix Green E1 fixing
Sto-Rotofix Black E100 fixing
Sto-Thermo Cap, non ETA, EPS
Sto-Thermo Cap, non ETA, mineral fibre
Sto-Thermo Cap, non ETA, Grey EPS
Sto-Rotofix Drill Bit B3, 140mm, grey
Sto-Rotofix Drill Bit X2, 160mm, white
Sto-Rotofix Drill Bit B3, 180mm, green/blue
Sto-Rotofix Drill Bit E100, 220mm, black
Sto-Thermo Countersink Mill
Sto-Rotofix Positioning Tool, red
Sto-Rotofix Positioning Tool, grey
Sto-Rotofix Jolley Tool
18 | Sto-Rotofix Plus
100 piece carton
100 piece carton
100 piece carton
100 piece carton
200 piece carton
200 piece carton
200 piece carton
1 piece
1 piece
1 piece
1 piece
1 piece
1 piece
1 piece
1 piece
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Guide
Concrete/uncoated dense masonry.
Cement particle (CP) board 12mm thickness.
Positioning tool requirement: Grey
Drill bit requirement:
Masonry drill bit 10mm with hammer action.
Use HSS drill bit for CP board
Anchorage length:
50mm for masonry.
Allow 38mm projection through CP board.
Insulation
Cavity range (mm)
Description and colour
EPS K90 T&G
10-30
120T (green)
10-70
160T (black)
10-30
120T (green)
10-70
160T (black)
MFB
Lightweight concrete block (aerated).
Rendered dense masonry/concrete.
Positioning tool requirement: Red
Drill bit requirement:
Masonry drill bit 10mm
(without hammer action for aerated block)
Anchorage length:
70mm plus render thickness (max 30mm) if req‘d.
Insulation
Cavity range (mm)
Description and colour
EPS K90 T&G
10-30
E1 (green)
10-70
E100 (black)
10-30
E1 (green)
10-70
E100 (black)
MFB
The technical specifications and information on the products
in the technical data sheets and approvals must be observed.
Sto-Rotofix Plus | 19
Head Office
Southern Office & Distribution Centre
Sto Ltd.
Sto Ltd.
2 Gordon Avenue
Antura
Hillington Park
Kingsland Business Park
Glasgow G52 4TG
Wade Road
Tel
Basingstoke RG24 8EN
+44 (0)141 892 8000
Fax +44 (0)141 404 9001
Tel
info.uk@sto.com
Fax +44 (0)1256 810887
+44 (0)1256 332770
www.sto.co.uk
Midlands Training & Distribution Centre
Sto Ltd.
Unit 700
Catesby Park
Kings Norton
Birmingham B38 8SE
Tel
+44 (0)121 459 5149
Fax +44 (0)121 459 0632
Ireland Office & Distribution Centre
Sto Ltd.
Unit 69
Western Parkway Business Park
Lower Ballymount Road
Dublin 12
Tel
+353 (0)1460 2305
Fax +353 (0)1460 2455
info.ie@sto.com
GB 10.07.2012
www.sto.ie