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Terms & Conditions

Wallbarn
Hardwood Timber Decking
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By using suspended Wallbarn Hardwood Timber Paving Tiles, installers combine the natural, attractive finish of timber decking with the speed and ease of laying paving slabs.

Laid in the same way as regular concrete paving slabs, they are suspended on Wallbarn’s range of support pads. The positioning lugs on the support pads allow rainwater to drain underneath and between the slabs into an appropriate outlet. This avoids the risk of standing water creating a slippery surface or causing the wood to rot.

As everything is free standing, the tiles can be taken up and replaced without disrupting the whole area, should the deck beneath need to be inspected.

The tiles measure 500 x 500 x 30mm and are mounted onto ASP or Megapad supports. The crucifix shaped positioning lugs hold the square edges securely in place. 

The tiles are suspended on the supports in the same way as a paving slab. There are no mechanical fixings; the weight of the tiles holds the system in place. The installation is fast and simple since multiple layers of battens and cross-beams do not need to be laid and fixed, and if the deck beneath ever needs to be inspected, an individual tile can be easily lifted up.

By lifting the timber off the deck, drainage is improved. None of the wood is in contact with standing water – the rainwater can drain in between each individual slat on the tile and then underneath into the roof drainage outlet. The deck should be laid to a fall, so the ASP or Megapad support pads are adjusted to create a level upper surface. The cavity will also ventilate the area.

The waterproofing membrane is also protected from damage as the support pads spread the weight and no sharp edges of timber can sink into the membrane over time

They are suitable for any type of flat roof design or membrane and can be used in conjunction with concrete slabs or natural stone.

 

TYPE OF TIMBER AVAILABLE
Wallbarn uses only hardwood. It has specially chosen timber which is very ultra-hard and dense to repel moisture and rotting, with smooth grains that are unlikely to splinter or scratch on the surface, resistant to insect and mildew damage, and are extremely strong and weight bearing. All our timber possess the following:-

  • Are ultra-hard and dense
  • Are long lasting
  • Are resistant to moisture ingress and rotting
  • Have smooth grains that are unlikely to splinter or scratch on the surface
  • Are resistant to insect and mildew damage
  • Are strong and weight bearing.

We have a number of different species available, both as stock items and non-standard material for specific projects. The main types of timber used are:-

ipe
 
cumaru
 
sucupira

 

Wallbarn is currently running Ipe and Sucupira as stock items.

Ipe from Brazil is one of the toughest most durable woods available. It has a greenish brown appearance and because of its tight grain is recognised for its high resistance to mildew, termites and rotting. It is very low maintenance and is used extensively in marine and exterior construction due to its resistance to water. It dries very well and becomes extremely hard, which means it has to be pre-drilled and cut with a mechanical saw. It carries a Class A fire rating and will last well over 25 years. It is nicknamed “ironwood”.

Sucupira is also from Brazil and is again is extremely hardwearing timber. Chestnut coloured, it is a little more course in the grain than ipe and is a little less strong, but is still ideal for external decking in the UK climate and will last for 20 years.

Further timber is also available as non-stock items, including Green Heart, Garapa, Cumaru and Massaranduba. Wallbarn can also source timber tiles in different timber if there is a specific requirement.

massanduba
 
garapa
 
green heart

 

FSC CERTIFIED TIMBER?

Wallbarn has Forest Stewardship Council ® Chain of Custody. This means Wallbarn is authorised to supply FSC ® certified timber. The FSC ®  scheme means that the certified timber can be traced back to the forest it was felled in. Every party, from the grower to the processor to the manufacturer of the tiles to the end user is tracked and audited to ensure that they have complied with the ethical and sustainable practices laid down by the FSC ®. The whole chain is monitored.

FSC ®  100% Chain of Custody certified timber - number SGS-COC-007242

Only fully accredited members of the Forest Stewardship Council can use the FSC ® logo against FSC ® certified timber only. FSC ® credited timber is clearly distinguished and marked as separate from non-FSC timber and the mark can only be used with FSC ® material.

For more details of FSC ® please click here http://info.fsc.org/ .

Wallbarn currently offers FSC 100% Ipe. Please contact us for more details.

 

 

TILE DESIGN

The tiles are manufactured with ridges on the upper side to guard against slipping on the surface.

The underside of each tile is reinforced with a diagonal plank of wood, made from the same species of timber. Each end has an additional plank fixed with rust-resistant screws.

Care should be taken when cutting the tiles not to hit the screw fixings.

 

CORNERS AND EDGING

Edges and cavities under the tiles can be covered with border trims, made from the same timber as the tiles. We can offer square edged borders in a number of widths and thicknesses, as well as more rounded skirting type boards for a chamfered edge.

 

The borders are screwed into the sides of the tiles; although pre-drilling is recommended due to the density of the timber. As well as hiding the cavity and sight of the support pads, border planks also help to secure the whole system together, preventing any one tile from moving.

CUTTING

The timber can be cut into shapes to fit around details and corners in a similar way to concrete slabs, which help to achieve attractive finishes and edges to terraces. Light fittings and additional features can be included within the fabric of the tiles without risk of them delaminating.

 

The grain is smooth and uniform in most cases, so sawing and drilling is possible. However, because the timber is so dense and strong Wallbarn recommends that carbide tipped saw blades are used when cutting the tiles. Saw blades will become blunt very quickly when working these types of timber. Wallbarn recommends pre-drilling all holes before screwing into the wood to avoid splitting.

They give a beautiful finish to roof decks and can be laid either in a straight line pattern or in a “chess board” formation, depending on the client’s wishes.

PACKAGING

The tiles are manufactured in squares 500 x 500 x 30mm. Four tiles make up one square metre. Standard carriage for the tiles is to deliver to site with 100 pieces stacked and strapped onto pallets.

A forklift truck will be required to unload the pallets as they are heavy.

Alternative quantities can be supplied in different formats on request.

 

 

T E C H N I C A L   D A T A
Raw material IPE CUMARU GARAPA GREEN HEART MASSARANDUBA SUCUPIRA
Botanical name Lapacho, Tabebuia spp, Dipteryx odorata Apuleia leiocarpa Lauraceae, Ocotea rodiaei Manilkara spp, Sapotaceae Bowdichia spp, Leguminosae
  Green Dry Green Dry Green Dry Green Dry Green Dry Green Dry
Density 960 kg/m3 994 kg/cm3 910 kg/m3 1,138 kg/cm3 670 kg/m3 830 kg/m3   970 kg/m3 833 kg/m3 1000 kg/m3 940kg 780kg
Bending strength 1,579 kg/cm2 1,825 kg/cm2 1,357 kg/cm2 1,917 kg/cm2 956 kg/cm2 1,278 kg/cm2 1,427 kg/cm2 1,842 kg/cm2 1,193kg/cm2 1,658kg/cm2 1505 kg/cm2 668 kg/cm2
Crushing strength (green) 1,825 kg/cm2 725 kg/cm2 1,917 kg/cm2 634 kg/cm2 380 kg/cm2 554 kg/cm2 380 kg/cm2 554 kg/cm2     746 kg/cm2 941 kg/cm2
Specific gravity 0.92 1.08 0.86 0.9   0.66   0.97 0.85 1 0.8 1
Hardness 1,671 kg   1,606 kg   740 kg   1,072 kg   980 kg   973 kg  
Shearing strength 114 kg/cm2       129 kg/cm2       135kg/cm2   139 kg  
Weight 994 kg/cm3   1,138 kg/cm3   835 kg/m3   1,030 kg/cm3   1,110 kg.m3      
Radial shrinkage 6.60%   5%   4.40%   7.50%   6.80%   5.60%  
Tangential shrinkage 8%   7.60%   8.50%   8.20%   11%   8.40%  
Volumetric shrinkage 13.20%   12%   14%   17%   19%   15.10%  
Colour Dark green to dark brown Chestnut honey colour to reddish brown Yellowish beige to yellowish brown Yellowish brown to olive colour Light red, becoming darker in time Reddish dark brown
Texture Fine, tight grain Unstressed Fibrous Fine, smooth grain Fine, uniform grain Fine, straight grain Medium, irregular grain but turns easily
Durability Very hard, almost completely resistant to termites, fungus, marine attack and damp Resistant to fungal and marine attack, high resistance to decay Resistant to termites. Marine attack, fungi and decay Highly resistant to termites and decay fungi Resistant to decay fungi and termite, low resistance to marine attack Resistant to fungi and termites
Anticipated lifespan Over 25 years Over 20 years Up to 15 years Over 20 years 10 years Up to 20 years
Size of tile 500 x 500mm 500 x 500mm 500 x 500mm 500 x 500mm 500 x 500mm 500 x 500mm
Thickness of tile 30mm 30mm 30mm 30mm 30mm 30mm
Weight of tile 5.7kg 5kg 4kg 4.75kg 4.5kg 5kg
Sawing characteristics Regular but blunts machinery quickly due to extreme hardness Difficult, splits due to irregular grain Relatively easy Relatively easy with a straight grain but blunts machinery quickly due to hardness Difficult – prone to splitting and warping Difficult due to irregular grain, can split at ends
Drilling characteristics Easy but blunts machinery quickly due to extreme hardness Easy with defects, high quality drill bits required Easy but high quality drill bits required Easy with defects, high quality drill bits required Good – drills easily with little defect Good – Pre boring necessary
Finishing characteristics Good - smooth Good with minor defects Good - smooth Good - smooth Good but can cause minor splintering Good - smooth
Drying characteristics Easy with little or no defects Easy with small defects Slow with little or no defects Slow with a risk of defects Difficult as the wood is prone to splitting, warp and case hardening Fast with little or no defects
Fire rating Class A High resistance High resistance Class A Class A