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UNDERFLOOR HEATING & PLUMBING SYSTEMS
www.rehau.co.uk Building Solutions
Automotive
Industry
UNDERFLOOR HEATING AND PLUMBING
INTRODUCTION
Recognised for quality and performance, the REHAU Heating
and Plumbing pipework system is the ideal solution for hot
and cold water, central heating and underfloor heating.
The first REHAU underfloor heating and plumbing pipes were
installed 25 years ago and over 700 million metres of REHAU
pipe have been installed since then.
The REHAU system benefits from: - All REHAU products are manufactured
- High density cross linked polyethylene (PE-Xa) to ISO 9001 standards.
with EVAL barrier coating to prevent oxygen - Advantages of polymers over metal:
diffusion to DIN 4726. - No corrosion
- Long life – pressure stability across the - No Leaks
temperature range gives a projected life - Low weight = quick installation
well in excess of 50 years BS 7291. - No hotworks* required
- Pressure rating of 6 bar at 95ºC for 50
years BS 7291. REHAU Underfloor Heating and Plumbing 10 Year
- Corrosion/ limescale free - Chemically Warranty. Up to £100,000 Consequential loss.
inert there is no risk of corrosion. If REHAU RAUTHERM Universal PE-Xa pipe or
- Low frictional resistance through pipe compression sleeve fittings are found to be
and fittings results in low noise transition. defective due to a manufacturing fault within the
- Flexibility and EVERLOC™ compression first 10 years of the warranty period, compensation
jointing method saves installation time. shall be paid for any damage resulting from the
- High integrity jointing system (over removal and replacement of the defective pipe and
50 million installed worldwide). fittings. REHAU shall assume the liability up to an
- Pipe-in-Pipe saves duct costs. amount of £100,000 per installation, inclusive of
- Extensive fittings range made from the supply of the replacement pipe and fittings.
DZR brass.
- WRAS listed under the water fittings * No hotworks (welding/soldering) required
and bylaws scheme.
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REHAU
CUSTOMER SERVICE
REHAU’s high-specification, top-performing heating and plumbing
systems are backed by equally high standards of customer service
and support.
Local support The REHAU Academy
Service and information provided by local area The REHAU Academy offers a range of specialist
sales representatives. training courses for heating and plumbing
professionals. The flexible courses are designed to
Technical support ensure up-to-date knowledge of REHAU product
A dedicated team of experts on hand to help with capability and application, combined with relevant
technical enquiries, design support and estimating market information and opportunities. The courses
REHAU are able to offer you support with designing are free of charge and normally held at the REHAU
and costing a system. If you provide us with headquarters in Ross-on-Wye, Herefordshire.
the project data, we will be able to assist with Where appropriate, courses can be provided at
calculations, design drawings and material costs, customer premises or at a regional facility.
together with providing you with all the materials
you need for a successful installation! Current courses include:
- Underfloor heating for specifiers
REHAU underfloor heating and plumbing - Underfloor heating for installers
products are available throughout the UK and - Underfloor heating design
Ireland, distributed through our regional Sales - RAUTHERMEX – pre-insulated mains system
Offices in Glasgow, Dublin, Manchester, - Heating and plumbing
Birmingham and Slough.
For further information on the REHAU Academy,
In addition, REHAU are able to offer a national please contact your local Sales Office or visit
distribution network ensuring that you can obtain www.rehau.co.uk.
product with ease and at your convenience.
Please contact your local REHAU Sales Office
for further details.
5
THE RAUTHERM
PE-XA UNIVERSAL PIPE
The RAUTHERM universal pipe supports all service applications
in sizes from 16mm - 32mm, along with plumbing or heating pipes
available in 40mm - 160mm options. It is fully compatible with
traditional systems and has been tested continuously for over 30 years.
The RAUTHERM universal pipe has exceptional - Noise reduction – No bore reduction at joist
physical properties including: and pipe-in-pipe hides the noise
Cross-section of REHAU - Flexibility – Pipes can be threaded through - Peace of mind – Pipe and EVERLOC fitting
EVERLOC™ jointing. walls and floors making routing easy. guarantee a leak-proof joint
- Speed – Reliable, secure joints can be
assembled in seconds. REHAU EVERLOC™ Compression
- Safety – No naked flames, swarf, flux, grease Sleeve Connection
or oil mean a safer working environment. - Sizes 16mm – 160mm
- Durability – REHAU pipework has a service - Permanent fitting
life in excess of 50 years (BS7291). - No O-rings
- Resistance – Non-corroding and resistant to - High integrity
abrasion, stress, cracks and kink damage. - Proven over 50 million times
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UNDERFLOOR HEATING
A BETTER SOLUTION
2.7 m
Underfloor heating is fast becoming a favoured choice for industry
1.7 m
professionals. Practical, cost effective and flexible, underfloor heating
is increasingly being specified over traditional radiator systems and
establishing a reputation as the preferred modern-day heating system. 0.1 m
˚C 16 20 24
Temperature Profile – Radiator
Advantages include:
Comfort Safety 2.7 m
Even spread of heat provides a high level No hazardous wall projections or hot surfaces.
of comfort. 1.7 m
Control
Economy REHAU comprehensive controls package offers a
Reduced demand on boilers and no wasted solution for the majority of building applications.
0.1 m
heat at ceiling height typically saves 15% in
fuel costs*. Compatibility ˚C 16 20 24
Renewable energy sources can be used for
Temperature Profile – Ideal
Cost and energy efficiency heating applications.
Reduced on-site maintenance – servicing
2.7 m
of boilers and pumps only.
1.7 m
Flexibility
Unrestricted wall surfaces in both old and
new buildings.
0.1 m
˚C 16 20 24
Temperature Profile – Underfloor
* Source: BSRIA application
guide AG12/2001
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UNDERFLOOR HEATING
SYSTEM AND LAYING POSSIBILITIES
REHAU’s underfloor heating products offer professional solutions
for a wide range of installations.
Diffusion Plate system Floating floor system
Installation advantages include: Installation advantages include:
- Designed for timber joist floor applications. - Dry system – ideal when a finished floor
Diffusion Plate System - Maximum heat transfer. is required quickly.
- Even heat diffusion – highly conductive - Suitable for domestic and
aluminium diffuses heat over the floor surface. commercial applications.
- Reduced reaction time compared to screed. - Polystyrene panels pre-routed in a range
of patterns and laminated with strong
aluminium foil.
- Even heat diffusion – highly conductive
aluminium diffuses heat over the entire
floor surface.
- Faster response time than screed systems
Floating Floor System due to lower thermal mass.
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UNDERFLOOR HEATING
SYSTEM AND LAYING POSSIBILITIES
Raufix/Railfix floor system - Optimal interaction with condensing boiler
Installation advantages include: achieving ideal output
- Secures underfloor heating circuits in the - Fast installation due to clipping pipe into channels.
planned pattern.
- Fast assembly of the RAUFIX/Railfix rail The SOLUS system is a channelled aluminium
without tooling. plate where a 12mm REHAU pipe is used. The
- Can be used with any insulation type. plates come in 0.5 and 1 meter lengths. SOLUS
- Suitable for large area applications. is suitable for 400mm and 600mm joist spacing.
Raufix Railfix system
The RAUFIX rail is manufactured from Tacker sheet system
polypropylene. Its unique pipe clip design makes Installation advantages include:
it suitable for both 16mm and 20mm REHAU pipe - Fast pipe installation
sizes. It is manufactured in 1 metre lengths. - Circuit pattern flexibility
- Multiple functions in one product
REHAU’s Railfix System is an alternative to RAUFIX. - Insulation
The installation methods are similar, using Railfix - Moisture barrier
rails instead of RAUFIX. Railfix is manufactured in - Pre-marked grid for accurate pipe spacing
3 meter lengths. - Foil glued to insulation aiding pipe fixing
Tacker sheet system
REHAU SOLUS system Tacker Sheet is available in EPS70 and EPS100
Installation advantages include: grades in both 25mm and 50mm thickness.
- Reduced risk for accidents due to installation Standard Fire Class F (BS EN 13163).
from below
Solus system
9
UNDERFLOOR HEATING
SYSTEM AND LAYING POSSIBILITIES
Reverse Spiral Layout
For Tacker Sheet Systems, this layout can be
applied to all installations except suspended
floors and is suitable for any area.
Temperature Distribution
Double Meander Layout
For Tacker and RAUFIX/Railfix Systems, this
layout can be applied to large industrial installations
and is suitable for large/industrial areas.
Temperature Distribution
Single Meander Layout
For Diffusion Plate, Floating Floor and SOLUS
Systems, this layout is for installation to suspended
floors and is suitable for any area.
Temperature Distribution
10
UNDERFLOOR HEATING
APPLICATION
Underfloor heating systems are particularly adaptable and can
be installed in both old and new buildings under a wide range of
floor coverings including screed, flagstones, tiles, carpets, rugs,
laminates and timber.
REHAU Base Load Pipe Size in mm Pipe Typical Typical Imposed Load Tacker Sheet System – Floor covering,
Floor System Distribution 1) Spacing Output 2) 75mm screed, edge insulation, UFH pipe,
Distributed Uniformely Concentrated Tacker Sheet, subfloor
ø12 ø20 ø25
distributed
Tacker Solid CT 150 Up to Up to
Sheet Beam & Block CA 200 100 5 kN/m2
Pre-stressed Beams CA-F 300 W/m2
Wet Fit System
RAUFIX Solid Base Slab CT 150 Up to Up to
Beam & Block CA 200 100 5 kN/m2
Pre-stressed Beams CA-F 3) 300 W/m2
Industrial* Compacted Reinforced/ 150 – Up to Above
hardcore Pre-stressed 500 100 5 kN/m2
concrete W/m2
Diffusion Suspended Timber Chipboard 120 Up to Up to
Raufix System – Floor covering, 75mm screed,
Plate Battens on Concrete Plywood 200 70 W/m2 2 kN/m2 4)
edge insulation, UFH pipe, RAUFIX rail, subfloor
Beam & Block Dry flooring
elements
Dry Fit System
Solus Suspended Joists Chipboard 200 55 W/m2 2 kN/m2
Plywood
Dry flooring
elements
Floating Solid Base Slab Chipboard 300 Up to Up to
Floor Beam & Block Plywood 70 W/m2 3.5 kN 4)
Suspended Timber Dry flooring
elements
Sprung Solid Base Slab Sports Floor 100 Up to See flooring See flooring
Floor* Beam & Block 70 W/m2 manufacturer manufacturer Diffusion Plate System – Floor covering,
Pre-stressed Beams chipboard, UFH pipe, aluminium plate,
insulation, joist hanger
Notes: 1) Screed types according to BS EN 13813, e.g. CT: Screed with cementitious binder,
CA: Screed with Calcium sulfate binder, CA-F: Flow screed with Calcium sulfate binder. 2) At
20oC room temperature. 3) Although not recommended. 4) Typical values – please confirm with
flooring manufacturer
REHAU Solus System Floating Floor System – Floor covering, dry floor
element, edge insulation, UFH pipe, foil faced pre-
routed panel, insulation, PE membrane, subfloor
11
EVERLOC™
HEATING AND PLUMBING SYSTEM
1 Stainless steel or copper radiator
tails with access to joins
2 Manifolds of brass construction
with flow and return sections
3 Continuous lengths of 5
Pipe-in-Pipe – no joints
4 Pipe-in-Pipe sleeve holding
1 2 3 4
flow and return pipes
6
5 Pipes can be completely
concealed in floors or walls
6 Wall plate elbows allow firm
fixing of appliances
Floor screed placed after
pipe installation
REHAU’s range of flexible heating and plumbing pipework effectively
compliments traditional systems, saving time, money and effort.
EVERLOC™ fittings Manifolds for central distribution
An extensive range of cold-jointing fittings for Services can be run out from a central point to
all applications. Superbly engineered, purpose- radiators and sanitary fixtures, enabling straight
designed DZR brass compression sleeve fittings forward installation and maintenance.
enable permanent and secure joints to be
assembled in seconds. REHAU Pipe-in-Pipe
Pipework can be run out from a single
- Practical – Combined pipe and corrugated
point, keeping installation simple and
completed in less time.
Fixings sleeve is light and easy to handle.
First fixing of all common heating and plumbing - Economical – Saves installation time and
applications are supported by a full range of material costs.
REHAU brackets, which can be easily concealed. - Fast – Fitted prior to laying floor screed,
Support channelling and stainless steel radiator eliminating the need to construct special ducts.
tails are also available. - Accessible – Screed-set pipes can be retrieved
and replaced if damage occurs.
- Regulated – Fully compliant with pipe
accessibility Water Regulations.
12
UNDERFLOOR HEATING AND PLUMBING
PROJECTS
St Aiden‘s Church, Plymouth Sway Hill Installation
REHAU underfloor heating has been installed REHAU’s flexible heating and plumbing pipework
throughout an innovative new development in has been used by M&E contractors Lorne Stewart
Ernesettle, Plymouth. The installation was carried out in an innovative installation at a large sheltered
by REHAU’s authorised partner HS Tech Partners. housing complex in Sway, Hampshire.
A run down church has been demolished and Placed within its pipe in sleeve system and fixed to
developers Community Property Partnership have the cable basket with cable ties, the REHAU PE-Xa
built a new church and a block of luxury apartments pipework is completely protected without any
on the same site. The 3000sq ft floor area of the requirement for separate ducts to be constructed. St Aiden‘s Church
new church has had REHAU underfloor heating
fitted throughout the 24 apartments as part of the Lorne Stewart chose the REHAU flexible pipe option
luxury specification. rather than conventional copper pipework because
it had used the system previously on a number of
Underfloor heating fitted the specification criteria educational projects for hot and cold water supply
for both buildings - in the church the warmth is and had been impressed at how easy the system
concentrated in the occupied area, and in the was to install and the options it opened up in terms
apartments it is considered an important selling of flexible design layouts.
feature.
REHAU estimates that, by using its flexible pipework
Sway Hill Installation
To maximise the efficiency of the installation, in this innovative way, Lorne Stewart has saved
HS Tech used REHAU’s intelligent control system - around 20% of the installation time on the project.
offering local mixing at each manifold so that
the church and apartments can be efficiently As well as its flexibility, the PE-Xa pipework has
zoned with thermostatic controls. numerous other advantages over copper - such as that
it is corrosion free, prevents internal scale build up, has
This project has proved such a success that a projected life in excess of 50 years and carries
Community Property Partnership has already less risk of site theft because it has no scrap value.
awarded the contract to HS Tech to install REHAU
underfloor heating in a similar church rebuilding
and property development scheme at St Marks
in Plymouth.
13
UNDERFLOOR HEATING AND PLUMBING
PROJECTS
HMS Collingwood, Portsmouth Dursley Nursing Home, Gloucestershire
A REHAU Authorised Partner, has installed the REHAU’s underfloor heating system was the first
REHAU underfloor heating system throughout a new choice for the developers of a large, new build
1300m2 Pay As You Dine (PAYD) restaurant facility, 44-bed nursing home in Dursley, Gloucestershire.
at HMS Collingwood, near Portsmouth
Underfloor heating was felt to be the most comfortable
Underfloor heating was the obvious choice for such option for the home’s new elderly residents and
a large open space - combining energy efficiency eliminated any risk from visible heat emitters.
with excellent comfort levels, and the REHAU
HMS Collingwood system was specified on the basis of its overall Greystone Construction had used the REHAU
product quality. system on previous similar projects and had been
impressed with the quality of the Pe-Xa pipework
REHAU PE-Xa universal pipework has been installed and fittings and with the skill of the fitting team
using the RAILFIX clip fixing method which makes it from HS Tech Partners.
easy to fix in circuits across large areas.
HS Tech worked alongside M&E contractors Octagon
HMS Collingwood, the home of the Maritime Warfare Heating to install pipework on all three floors of the
School, is the largest naval training organisation in 2,100m2 project using REHAU’s Tacker system.
Western Europe. In a typical year, 30,000 Officers As well as being very fast in comparison with
and Ratings pass through the centre. conventional pipework fixing onto rails, this system
Dursley Nursing Home
provides considerable flexibility in the layout of
circuits, which was useful in the nursing home
where there are lots of small, irregular shaped areas.
Using the Tacker installation method, REHAU’s
20mm RAUTHERM universal pipe is stapled directly
onto Tacker insulation boards, pre-laminated with
a fabric reinforced water resistant foil. The pipe is
then fixed to the board using a specially designed
Tacker System staple gun before the screed is laid.
14
www.rehau.co.uk 864.733EN/226/DAIR/02.09
