Pipe In Plate

Floor Joist Plate 16 (for Floor Joist Plate 20 click here)

Design

Anderson Floor Warming Underfloor Heating may be fitted using Floor Joist Plate 16 for installation on standard wooden joists c/c 600 mm. FJP 16 is manufactured by pressing aluminium sheet into heat diffusion plates. The design is particularly suitable for refurbishment and post build projects, as well as new build, offering significant savings over tradition installation methods, saving both additional materials (wood cross battens and noggins) and building labour required for other ufh fixing systems. Care should be taken to ensure the edges of the plates do not touch, to prevent noise from expansion and contraction. The construction permits the laying of a load-bearing floor covering directly on top of the floor joists (with intermediate layer of cell foam). For other types of floor covering, see AFW underfloor Heating System Wood 22.

Requirements

We recommend that to achieve optimum efficiency of the underfloor heating system the use of weather dependent (weather compensation) flow temperature control, properly balanced and set in line with the design for adjustment of the primary and loop flow. We also recommend the settings are recorded for future reference.

Construction Outline

pipe in rail

1. Floor joists
Floor joists with c/c distance 600mm.
2. Insulation (e.g. Rockwool)
Joist insulation should fill up the entire joist cavity. The intermediate joist is not usually fully insulated. The joist cavities must be sealed to prevent heat from escaping
3. AFW Joist Plate 16
AFW Joist Plate 16, dim 595 x 300 x 0.5mm, is a self bearing joist plate in galvanised steel with 3 slots c/c 200mm suitable for the AFW Universal Pipe 16mm. We recommend you wear gloves when handling the plate, as some of the corners and edges may be sharp.
4. Pipe
Anderson Floor Warming Universal Pipe dia. 16mm.
5. Cell foam / rag board

Surface layer

Parquet, solid wood or laminated floor
The floor heating is covered with damp barrier (age constant plastic) and after that rag paper or cell foam. On top of that a load bearing floor. Note that rag board must never be laid directly on the underfloor installation as this may cause squeaking. For fixing of some solid wood floors (and all parquet floors), it may be necessary to lay 12mm plywood above cell foam. Floating engineered (laminated) floors generally do not require an intermediate plywood layer. The flooring should be installed in line with manufacturers instructions. Always consult the flooring manufacturer. Always consult Anderson Floor Warming for floor thicknesses above 25 mm total and take advice from the flooring manufacturer.
Vinyl or linoleum flooring
When vinyl or linoleum flooring is used, a floor of 1 layer of 12mm floor plywood is glued and screwed down according to the instructions provided by the plywood supplier.
Ceramics or natural stone
For flooring of ceramics or natural stone we recommend our systems AFW Slotted Board Wood 22.

AFW Heating Circuit Manifold

The AFW Heating Circuit Manifold must be installed as shown in the design drawing. Please read the instructions enclosed with the manifold first.

AFW Joist Plate 16

Unless otherwise stated in the data calculations or the drawing, lay the plates out over the joist compartments at a max. spacing of 150mm. About 5.4 plates cover 1m². The closer the plates the more even the surface temperature.

The turning radius of the Ø16 mm underfloor heating pipe is at least 150mm, so the joist plate in the turning zone must be positioned approx. 175-200mm from transverse joist. Bear in mind that additional space may be required for any transverse supply and return lines.

Laying procedure, joist plate

Lay loose over the joists, the plates must have some sprung tension and be slightly rounded upwards. Storage and transport may affect the shape of the plate. Gently flexing the plate before laying it will bring it back to the right shape.

After laying the joist plate and aligning it with straight slot lengths, fix it in place with two nails, one in each joist. In this position, the plate should still be sprung and be slightly rounded upwards. No plate should lie completely level or sag downwards.

For efficient assembly we recommend the use of a nailgun plus nails with a flat head, length approx. 25mm. (NOTE: recent building regulations may require the plates to be glued using polyurethane adhesive.)

Laying the pipe

Lay the underfloor heating pipe out according to the layout diagram. Ensure the direction of flow in the loop is such that the supply line is closest to the outer wall. Number and name the loops according to the drawing.

It is simplest and quickest if two people lay the pipe, with one running the piping and the other snapping the pipe into the slot. Hold the plate out of the way and lift lightly when the pipe is pressed down into the slot.

pipe in plate laying

Pipes should be cut using pipe shears intended for PE-X.

Pipe turning

When turning the pipe do not allow it to touch the joist opposite. Leave a gap of 25-50mm.

Finished laying

Before laying the flooring, check that none of the plates have been ”trampled down” during the work and that all plates still have the required degree of sprung flex in order to ensure contact with the flooring underside. The plates must be protected against being trampled down during any subsequent work and during the laying of the floor surface.

Floor Joist Plate 20

Design

Anderson Floor Warming Underfloor Heating may be fitted using Floor Joist Plate 20 for installation on standard wooden joists c/c 600 mm. The construction permits the laying of a load-bearing floor covering directly on top of the floor joists (with intermediate layer of cell foam). For other types of floor covering, see AFW underfloor Heating System Wood 22.

Requirements

We recommend that to achieve optimum efficiency of the underfloor heating system the use of weather dependent (weather compensation) flow temperature control, properly balanced and set in line with the design for adjustment of the primary and loop flow. We also recommend the settings are recorded for future reference.

Large and fast variations in the supply line temperature may cause noise from expansion in the joists and floor due to large, rapid temperature changes in the floor heating circuit. The selection of heat source and the necessity of a temperature equalising vessel should be considered.

Construction Outline

pipe in rail

1. Floor joists
Floor joists with c/c distance 600mm.
2. Insulation (e.g. Rockwool)
Joist insulation should fill up the entire joist cavity. The intermediate joist is not usually fully insulated. The joist cavities must be sealed to prevent heat from escaping
3. AFW Joist Plate 20
AFW Joist Plate 20, dim 595 x 300 x 0.5mm, is a load bearing joist plate in galvanised steel with 2 slots c/c 300mm suitable for the AFW Universal Pipe 20mm. We recommend you wear gloves when handling the plate, as some of the corners and edges may be sharp.
4. Pipe
Anderson Floor Warming Universal Pipe dia. 20mm.
5. Vapour barrier and cell foam / rag board

Surface layer

Parquet, solid wood or laminated floor
Note that rag board must never be laid directly on the under floor installation as this may cause squeaking. For fixing of some solid wood floors (and all parquet floors), it may be necessary to lay 12mm plywood above cell foam. Floating engineered (laminated) floors generally do not require an intermediate plywood layer. The flooring should be installed in line with manufacturers instructions. Always consult the flooring manufacturer. Always consult Anderson Floor Warming for floor thicknesses above 34mm total and take advice from the flooring manufacturer.
Vinyl or linoleum flooring
When vinyl or linoleum flooring is used, a floor of 1 layer of 22mm floor chipboard is glued and screwed down according to the instructions provided by the chipboard supplier.
Ceramics or natural stone
For flooring of ceramics or natural stone we recommend our systems AFW Slotted Board Wood 22.

AFW Heating Circuit Manifold

The AFW Heating Circuit Manifold must be installed as shown in the design drawing. Please read the instructions enclosed with the manifold first.

AFW Joist Plate

Unless otherwise stated in the data calculations or the drawing, lay the plates out over the joist compartments at a max. realtive distance of 150mm. The amount of material required is around 3.6 plates per 1m². The closer the plates the more even the surface temperature.

The turning radius of the Ø20mm underfloor heating pipe is at least 200mm, so the joist plate in the turning zone must be positioned approx. 250-300mm from transverse joist. Bear in mind that additional space may be required for any transverse supply and return lines.

Laying procedure, joist plate

Laid freely over the joists, the plate must have some degree of elasticity and be slightly rounded upwards. Storage and transport may affect the shape of the plate. Gently bending the plate before laying it will bring it back to the right shape.

After laying the joist plate and aligning it with straight slot lengths, fix it in place with two nails, one in each joist. In this position, the plate should still have its elasticity and be slightly rounded upwards. No plate should lie completely level or sag downwards.

For efficient assembly we recommend the use of a nail gun plus nails with a flat head, length approx. 25mm.

Laying the pipe

Lay the underfloor heating pipe out according to the layout diagram. Ensure the direction of flow in the loop is such that the supply line is closest to the outer wall. Number and name the loops according to the drawing.

It is simplest and quickest if two people lay the pipe, with one running the piping and the other snapping the pipe into the slot. Hold the plate out of the way and lift lightly when the pipe is pressed down into the slot.

pipe in plate laying

Pipes should be cut using pipe shears intended for PE-X.

Pipe turning

When turning the pipe do not allow it to touch the joist opposite. Leave a gap of 30-55mm.

Finished laying

Before laying the flooring, check that none of the plates have been ”trampled down” during the work and that all plates still have the required degree of sprung flex in order to ensure contact with the flooring underside. The plates must be protected against being trampled down during any subsequent work and during the laying of the floor surface.

plate 20 laying

Projects using Pipe In Plate

[suffusion-widgets id=’2′]