Granab Golvvärme_Eng

08 | 2012

A subfl oor system and an underfl oor heating system – together an optimal, nice warm solution

for new constructions, structural alterations and renovation work.

2 Granab Subfl oor System and Uponor Underfl oor Heating System

Granab Subfl oor SystemThe best features are always out of sight

Th e subfl oor system

Granab manufactures subfl oor systems for residential properties, offi ces, schools and public buildings. Steel fl oor joists with damping elements for effective impact sound and airborne sound insu-lation. The Granab Subfloor System is patented and type-approved with regard to its sound-damping properties, dynamic loads, strength and resilience. More than two million square metres of the Granab Subfl oor System have been installed as part of various projects.

Th e underfl oor heating system

Uponor manufactures underfl oor hea-ting systems for all types of building. Underfl oor heating systems are supp-lied complete with room regulation for an optimum indoor climate. Since 1972, Uponor has manufactured over 1,500,000,000 metres of PEX piping. Much of that has been supplied for under-fl oor heating systems installed all over the world. Uponor Underfl oor Heating Sys-tems feature jointless installation, which ensures a more reliable system.

Th e combination

Th e two systems have been developed to work eff ortlessly together. Th is combina-tion guarantees you an optimum sub-fl oor system with safe and comfortable underfl oor heating. Effi cient installation reduces the build time and helps to keep the overall cost down.

Our system enables you to walk barefoot on a warm bathroom fl oor

The system does not restrict the architecture or furnishing

You can choose a surface fi nish that adds to both the function and design

Granab Subfl oor System and Uponor Underfl oor Heating System 3

Benefi ts of a subfl oor system

• Eff ective impact sound damping and airborne sound insulation

• Dry installation method. Can be instal-led directly on untreated concrete fl oors without the need for wet screeding

• The system has an environmental friendly product declaration

• Consists entirely of inorganic material and is not aff ected by moisture or temperature fl uctuations

• Makes fl oors more comfortable for a better living and working environ-ment

• Type-approved

• Adjustable in height 30 - 420 mm.

• Free mounting of electrical cables, ventilation, water and sewage instal-lation

Benefi ts of an underfl oor heating system

• Underfl oor heating systems are cove-red by a building product declaration

• Quick response

• Individual room control

• The underfloor heating pipes (Wirsbo-pePEX pipes) are made of polyethylene and are converted to water on combustion

• Unlimited choice of heat source

• Smaller electrical installations for wireless room regulation

• No impact on the position of windows and other architectural features

• No impact on furnishing

Common properties

• Comfortable environmental ly friendly fl oors

• Flexible pipe-laying and electrical wiring that is separate from the buil-ding design

• Designed and tested as a total concept

• Faster, more flexible and simpler construction method

• Unlimited choice of fl ooring/surface

• Easy to work with in the event of future structural alterations or reno-vation work

• Contributes to a healthy home and environmentally-friendly residential properties, schools and public buildings

• A well-thought out and efficient construction process.

• Step sound reduction

• Adjustable in height

• Dry installation, gives minimal moisture

• No uncontrolled heat from supply pipes

Uponor Underfl oor Heating SystemsNothing warms as well as genuine underfl oor heating


The best of both worldsA complete subfl oor and underfl oor heating system

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Cellular fl oor

Granab Subfl oor System

Uponor UFH Chip board

Uponor Heat emission plates

Uponor Underfl oor heating pipes

Plastic fi lm

Renovation gypsum board 6-13 mm

Parquet fl ooring in free direction.

To date, Granab’s patented and type-approved floor joists systems have been installed in more than four mil-lion square metres of fl oor in residen-tial properties, offi ces, schools, shops and public buildings.

Th e Granab Subfl oor System is type-approved. It has been tested and certifi ed by the Swedish National Testing and Research Institute (SP) with regard to its sound-damping properties, dynamic loads, strength and resilience. Th e stable galvanised steel joists are extremely strong and are not aff ected by moisture or temp-erature fl uctuations. Other incorporated components are made of moisture-resis-tant materials. Th e subfl oor system’s in-built impact-damping properties ensure comfortable and silent fl oors.

A lot of people are looking to reduce their electricity consumption for heating and are switching instead to district hea-ting or another energy source. Uponor Underfloor Heating Systems can be connected to all types of heat source. It is not uncommon for houses under construction or being renovated to be fi tted with underfl oor heating.

By letting the warmth rise from the fl oor, heat is distributed evenly throug-hout the room. Optimum comfort is achieved using a room thermostat and individual regulation of all rooms. With warm fl oors, the room temperature can be reduced a few degrees. Th is benefi ts both your wallet and your wellbeing, as the feet are the body’s own thermostat.

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Decorate any way you wantOpen up to creative architecture

Being able to choose whichever surface fi nish you want encourages creative architecture

Th e combination of a Granab Sub-fl oor System and Uponor Underfl oor Heating System does not simply mean being able to climb out of bed in the morning without the soles of your feet encountering a freezing cold fl oor.

A silent, warm and comfortable fl oor also encourages greater freedom when it comes to decorating and furnishing your home.

Underfl oor heating allows you to use every square metre of fl oor surface. And think how easy it will be to paint and wallpaper the walls. No radiators or pipes that collect dust to ruin your decorating dreams. If you want to move the sofa or your favourite armchair under the window, then why not? Th is form of heating works well no matter how the furniture is arranged.


Quick and easy installationThe customer, installation engineer and builder

all benefi t fi nanciallyComplete documentation

Both the Granab Subfl oor System and Uponor Underfloor Heating System are well documented. You can down-load product information and instal-lation instructions from our websites, www.granab.se and www.uponor.se.

Diff erent installation alternative of Uponor Underfl oor Heating System

Uponor Underfl oor Heating Systems can be combined with the Granab Subfl oor System with different laying methods. You can choose between lay-ing Uponor UFH Chipboards, groo-

ved 17, over the joists, joists mounting the Uponor UFH Cassette 20 with insulation between the fl oor joists, or Underfl oor Heating on a self-carrying fl oor on top of the joists

Uponor UFH Chip board 17 on the Granab joists

Grooved UFH Chip board is glued and screwed securely to the joists. Heat emission plates to distribute the heat are laid in the grooves and then underfl oor heating pipes are inserted into the plates. Renovation gypsum boards are mounted before the fl ooring is laid. This gives free mounting direction of parquet.

Uponor UFH Cassette 20 between the Granab joists

Underfloor heating is installed in an Uponor UFH Cassette 20 with insula-tion, which is laid between the fl oor joists. Th e cassettes rest on Uponor Cassette support. Th e standard distance between joists is c/c 600 mm. Th e fl ooring can be of 22 mm parquet (alternative 22 mm chip board with 14 mm parquet). Follow the floor manufacturer’s instructions carefully.

Uponor UFH on a self-carrying fl oor on Granab joists

On a carrying 22 mm chip board on a Granab joist system Underfl oor Heating can be installed in Uponor 30 mm polysty-rene panels, alternative the heating system can be installed in a ”self-levelling” poured screed. Consider the need of moisture proof layer.


Parquet or vinyl fl ooring

Uponor UFH Chip Board 22 mm with grooves is glued along all edges and is screwed onto the steel profi le c/c 600 mm. The panels are jointed on the joists according to installation instructions. Heat emission plates, which spread the heat evenly over the fl oor, are laid into the grooves followed by the Underfl oor Heating pipe 17x2.0 mm. Gypsum board 6-13 mm is then screwed to the chip board with fi xings at c/c 200 mm. Use rag paper below the fl oor covering when using parquet. Gypsum boards give free installation direction of par-quet. Follow parquet supplier instruc-tions (13-16 mm chip board with vinyl fl ooring can replace parquet).

Ceramic

Mount Uponor Underfl oor Chip Board on the Granab steel joists c/c 300 mm. The panels are jointed on the joists according to installation instructions. And is glued along all edges and screwed. Heat emission plates, which spread the heat evenly over the fl oor, are laid into the grooves followed by the Underfl oor Heating pipe 17x2.0 mm. Gypsum board 13-16 mm is screwed to the chip board with fi xings at c/c 200 mm.

In dry rooms:Th e surface is protected with a primer prior to the laying of fl oor tiles in accor-dance with installation instructions.

In wet rooms:Replace the gypsum board with an aqua board (approved resistance against mildew), the screed should be equipped with water barrier (membrane) prior to laying fl oor tiles in accordance with the supplier’s installation instructions.

Uponor UFH Chip board on Granab joist system


Uponor UFH Chip board, grooved 17 Procedure for installation

First the surfaces where the underfl oor heating and subfl oor systems are to be installed must be cleaned and made accessible.

Th e manifold cabinet should be positio-ned as shown in the drawing.

Install the feed lines from the heat source to the underfl oor heating manifold. Th e supply line is fi tted to the upper mani-fold and the return line to the lower one. Each manifold is equipped with a balancing valve.

The feed lines must be secured suf-fi ciently.

Any excess adhesive should be wiped away, with particular attention being paid to grooves where underfl oor heating plates or pipes will be fi tted later.

Holes (diameter approx. 65 mm) must be drilled in the Uponor UFH Chip board for the underfl oor heating pipes, supply lines. It may be helpful to cut an extra hole in line with the fi rst in order to facilitate the use of rising pipes. Th e position of the hole is shown in the underfl oor heating drawing. It should be positioned where the loop fi eld starts or ends.

The protective pipe is secured to the underlying surface using pipe clips

Electrical wiring and pipes are drawn fl exibly under the fi nished fl oor

The underfl oor heating pipes are drawn through conduit pipes to every room with underfl oor heating

Install conduit pipe from the manifold cabinet to each loop and connection point. “Connection point” means the place where the underfl oor heating pipe is to come up through the Uponor UFH Chip board, grooved 17 (see underfl oor heating drawing).

The subfloor system should now be installed according to Granab’s installa-tion instructions.

If the walls are to be plastered, make sure that the gypsum board beneath the mani-fold cabinet does not reach right down to the basefl oor. Th e board must stop level with the upper edge of the Granab fl oor joist.

Fit the Uponor Chip board over the Granab subfl oor. All joints must be glued in accordance with instructions. Mount short joints over the joists and screw the chip board.

Secure the conduit pipes as required, with a distance of max 600 mm between the clips. Th e last clamping ring before the connection point must be no closer than 600 mm. The conduit pipe must stop approx. 150 mm above the fi nished fl oor.

Make sure that pipes passing through the chipboard have a soft bend so that the pipe will not press against the parquet or fl oor surface that will be laid over the Uponor UFH Chip board.

See even:Mounting instruction for Uponor UFH Chip Board 17 together with Granab Subfl oor system.


Th e turning grooves for the underfl oor heating pipes must be milled as close to the opposite wall as possible. Check also that the depth of the groove is suffi cient. Normally, the depth of the groove cor-responds to the maximum depth of the Uponor Milling Machine.

After vacuuming, the fl oor surface must be covered with Uponor Heat emission plates. All straight grooves are equipped with plates. Th e distance between the plates must be 10-100 mm lengthwise.

Th e underfl oor heating pipes can then be installed. Remember to connect the supply and return lines to the correct part of the underfl oor heating manifold. Check also that the pipe have no tension when coming up and down from the Uponor UFH Chip board.

All underfloor heating loops must be marked at the underfl oor heating manifold in accordance with Uponor’s underfl oor heating drawing with room designation and/or loop number.

Before the fl oor is covered, the under-fl oor heating system must be tested for tightness in accordance with Uponor’s instructions.

Th is testing must also be documented in a separate document.

Uponor UFH Chip board, grooved 17Installation over fl oor joists

The protective pipes containing the underfl oor heating pipes are drawn up and connected to the underfl oor heating manifold

Once all the loops have been fi lled and tested for tightness, each underfloor heating loop can be balanced in accor-dance with Uponor’s underfl oor heating calculation.

6-13mm gypsum board is then installed over the pipe and heat emission plates. It should be screwed into the chip board between the Heat emission plates c/c 200 mm. Then parquet can be laid freely in any direction.

It is important that the fl oor surface layer or protective fl ooring be fi tted as soon as possible after the system has been tested for tightness.

NB! Th e Uponor UFH Chip board is not intended for use as a working fl oor.

Once installation is complete, install and function test room regulation.

Before installing underfloor heating plates the fl oor surface must be vacuum-cleaned carefully.


Uponor UFH Cassette 20 with insulation mounted between Granab joists.


Uponor UFH Cassette (34 mm) with insulation is laid between the metal joists c/c 600 mm on the special Uponor Cassette support. In the grooves is then Uponor Underfl oor Heating pipe 20x2,0 mm. Mount a self-carrying chip board 22 mm over the joists, which is glued and screwed according to the instructions. Under parquet a step noise reduction layer (rag paper) should be installed according to supplier instructions. Alternatively, vinyl fl ooring can be used.

Ceramic

Uponor UFH Cassette (34 mm) with insulation is laid between the metal joists c/c 300 mm on the special Uponor Cassette support. Laid in the grooves is the UFH pipes 20x2.0 mm. Above is then a self-carrying chip board 22 mm mounted in accordance with the instal-lation instructions.

In dry rooms:The surface is treated with a primer prior to the laying of fl oor tiles in accordance with installation instructions.

In wet rooms:Mount an aqua board (approved resis-tance against mildew), the ”self-level-ling” poured screed should be equipped with water barrier (membrane) prior to laying fl oor tiles in accordance with the supplier’s installation instructions.


Work begins with the surfaces where the underfl oor heating and subfl oor systems are to be installed being cleaned and made accessible.

Th en install the manifold cabinet with the manifold positioned as shown in the drawing.

Install the feed lines from the heat source to the underfl oor heating manifold. Th e supply line is fi tted to the upper mani-fold and the return line to the lower one. Each manifold is equipped with a balancing valve.

Th e feed lines must be secured suffi ciently. Max 800 mm distance between clips.

Install conduit pipe from the manifold cabinet to each loop and connection point. “Connection point” means the place where the underfloor heating pipe is to come up near the Uponor UFH Cassette (see underfl oor heating drawing).

Secure the conduit pipes as required, though with a distance of max 600 mm between the clips. Th e last clamping ring before the connection point must be at least 600 mm away. Th e conduit pipe must stop approx. 150 mm above the fi nished fl oor.

Th e subfl oor system 7000 should now be installed according to Granab’s instal-lation instructions

For smaller cross bar compartments, cut support brackets and underfl oor heating cassettes to fi t

The underfl oor heating cassettes are laid on top of the cassette support

For passage between the subfl oor bays there must be a gap of approx. 50 mm between the longitudinal and the trans-verse joist.

Cover the fl oor surface with Uponor UFH cassettes. Th e distance between the cassettes must be 10-100 mm lengt-hwise. Th e cassette stops 300 mm from the transverse fl oor joist.

Vacuum-clean the Uponor UFH Cas-settes, particularly in the grooves, before beginning to lay the underfl oor heating pipes.

Install the underfl oor heating pipes in accordance with the underfl oor heating drawing produced and connect them to the installed underfloor heating manifold.

If a joist intervall has a c-distance less than 600 mm, the support brackets should be split and laid as overlapping. Both ends should be fastened together using pop rivets, tape or equivalent.

If the walls are to be plastered, make sure that the gypsum board beneath the manifold cabinet does not reach right down to the fl oor. Th e board must stop level with the upper edge of the Granab fl oor joist.

Once the subfl oor system has been instal-led, installation of the underfl oor heating cassettes can begin.

In between the joists of the subfl oor system, support brackets for the UFH cassettes are fi tted using the holes beside the joists. Th ree support brackets must be fi tted for each cassette.

Procedure for installation

See even:Mounting instruction for Uponor UFH Cassette 20 together with Granab Subfl oor system.


Once installation is complete, install and function test room regulation.

All underfloor heating loops must be marked at the underfl oor heating manifold in accordance with Uponor’s underfl oor heating drawing with loop number and/or room designation.

Before the fl oor is covered, the under-fl oor heating system must be tested for tightness in accordance with Uponor’s instructions. Th is testing must also be documented in a separate document.

Once all the loops have been fi lled and tested for leaks, each underfl oor heating loop can be adjusted in accordance with Uponor’s underfl oor heating calculation

It is important that the fl oor surface layer or protective fl ooring be installed as soon as possible after the system has been tested for tightness.

NB! Th e underfl oor heating cassettes are not intended for use as a working fl oorA fi nished underfl oor heating system must

be tightness tested before the surface layer is installed

An underfl oor heating system allows almost complete freedom when it comes to furnishing

Remember to connect the supply and return lines to the correct part of the underfl oor heating manifold. Check also that the pipes are not coming loose and touching parts of the joists.

Rising pipes must have a soft bend so that they do not press against the parquet or fl ooring particle board that will be laid over the joist fl oor.


Uponor Underfl oor Heating on Granab joist system with chip board


Chip board 22 mm mounted on a Granab Joist system with c/c 600 mm. Mount Uponor Underfl oor heating PS panel 20 (30 mm) with heat emission plates and pipe 20x2.0 mm. The surface fl oor, parquet or chip board (min 14 mm) with vinyl fl ooring can be laid.

Ceramic

Chip board 22 mounted on the Granab joist system with c/c 300 mm.

In dry rooms:The chip board is treated with a primer before Uponor Pipe clip strips are moun-ted. A ”self-leveling” poured screed is then laid according to the supplier’s instructions. Then lay fl oor tiles accor-ding to normal instructions.

In wet rooms:A water barrier (membrane) must be installed prior to laying fl oor tiles in accordance with the supplier’s installa-tion instructions.

Procedure for installation

Mount the Granab joist system in accor-dance with specifi cation from Granab (Note! c/c 300 mm should be used with ceramic fl oorings) on a well cleaned fl oor. Th e chipboard (min 22 mm) should be mounted according the to the supplier’s instructions (Note! it should be glued and screwed).

Feeding pipes can be mounted into the suspended fl oor system by using conduit pipes (34/29 mm for 20 mm pipe, 28/23

for 17 mm pipe and 25/20 for 12 mm pipe) from the already mounted manifold cabinet.

When installing fl oor tiles pipe clip rails are used to hold the pipes. Pipe sizes of 12x1.7, 17x2.0 and 20x2.0 can be used depending on build height. When Uponor Underfl oor panel PS 20 (30 mm) with heat emission plates is used only 20x2.0 mm pipe can be used.

Note! See other instructions.


Safe and simple planningLet us do it for you

When you choose a subfl oor system from Granab, we will help to draw in the subfl oor system on your plans. We will produce laying plans showing detailed measurements and the positions of all incorporated joists. Th e joists are cut according to the laying plan, and all incorporated adjustment units with damping elements are pre-installed at the factory.

If you choose an underfl oor heating system from Uponor, we will also draw in the underfl oor heating loops and the positions of manifolds and thermostats on the plans. You will receive a drawing showing both the subfl oor and underfl oor heating systems. We will also perform a pressure drop calculation for the underfl oor heating system, making the system easier to balance.

Could it be any simpler? Please contact us for more information, planning or an estimate.

Th e latest information is always available on our websites.

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Bygg- och Miljöteknik Granab AB Tel +46 (0)322-66 76 50Box 172 Fax +46 (0)322-66 76 55SE-447 24 Vårgårda www.granab.se

Uponor AB Uponor VVS Tel +46 (0)223-380 00Box 2 Fax +46 (0)223-387 10 SE-721 03 Västerås www.uponor.se

Documents

Granab Golvvärme_Eng