TechniHemp and limetechniques

- Shuttering- Slab / sreed- Coating / renders /plasters- Hempwool®

- Hemp brick

Hemp solutions for building

TechniHemp and lime

in shuttering

shuttering

Hemp solutions for building

Timber frame preparation

First stage :

Hemp solutions for building

shuttering

Apparent framework:

Moveable shutter are screweddirectly on the timber framework

Two solutions for shuttering

Result

shuttering

Exposed framework:Put screws in framework to shift themoveable shutter (around 3 to 5 cm). Moveables shutters are fixed to the timberframe to form the finished size and shapeof the walls.

After this, framework will be lumped in withthe mortar

moveable shutterEx: plywood 18 mm

Timber frameResult

shuttering

screw

Timber frame preparation

Place little timber piecesin the framework to lock

mortar in place.

Avoid too large space betweem framework piece(not more than 70 cm)! shuttering

First fix electricity supply, installedin the framework prior to castinf

the hempcrete

Shuttering preparation

shuttering

The two faces offramework are walled-up

All of outside is coveredand inside step by step

Timber frame preparation

shuttering

Cast of TechniHemp & lime mortar in framework

Second stage :

Hemp solutions for building

shuttering

Prepare your mixin a cement mixerHemp solutions for building

TheThe mortarmortar

1 : Water2 : Lime3 : Technihemp

shuttering

Pour TechniHemp & limein schuttering

shuttering

« Pack » slowlythe mixture in moulding

Pour and« pack »

the mortar by lenght of

60 cm

One trick :A tool with two screeded

timber pieces

shuttering

Take off interiormoveable shutter

the next day

The externalmoveable shutter

a week after

shuttering

Take off first sidethe next day and

second side the week after

Lime + water to protect the mortarbefore timber cladding

on a 50*50 batten

shut

terin

g

After drying :2 solutions : coating or a timber cladding

Exposed framework = timber cladding(with air between mortar and timber cladding)

Inclusive framework = coat of sand +lime

shuttering

Hemp lime walls can easily be finished witha simple render or plaster on the inside andoutside and lime is usually recommended forthis as it has good vapour permeability whichis essential for the hygrothermal performanceof hemp lime. The outer render will provide

weather protection. If hemp lime is cast carefullyit may not be necessary to plaster it internally

shuttering

Realisations examplesTechniHemp & lime

in shuttering

Hemp solutions for building

shuttering

Timber frame house with techniHemp & lime

shuttering

12

3

shuttering

TechniHemp & lime in slab

Slab

Hemp solutions for building

The layer of gravels (20/40)

The gravels (20/40 in diameter) shouldbe clean (without sand) to ensure no

capillary movement of waterThickness : 15 to 20 cm

Slab

Keep a space of 2 cmto avoid

capillarity water problem

Slab

Electric cable are put on gravels and will belumped in the mortar

Slab

Recommanded thickness of TechniHemp + lime : 15 cm

Slab

Line of mortar at correct thicknessIt will be your level reference

Guides or markers could be set up to help keep the hemp layer level

Fill the space with mortar

and « pack » slowly

1 – Layed out mortar

2 – « Pack » slowlySlab

Lay out on gravel

check for level

Pack slowly

Slab

When it’s finished :

Heating floor is consistent with hempcrete slabYou must fix it on the slab with plastic clip. All will be slumped in a lime + sand mortar. After use a permeable tiling(ex: terracotta tiles ) fix with a mixture of lime + fine sand.

flow a lime + sand clevis and pastedirectly your permeable terracotta tiles on

or

Slab

TechniHemp & lime in renders

/ plasters / coating /

Renders

Hemp solutions for building

Spring the wall(stones, brick…)

The day before andin the morning

The wall must beHEALTHY and CLEAN(before application,

break cement or plaster coatif necessary )

NB : on classic cement brickforecast an fist layer of

hydraulic lime+ sandRenders

Trunkings are fixedon wall

with plastic clips andwall plugs

End

uit

First layerAround 3 cm directly

on the wet wall

RendersWARNING : IT’S ESSENTIAL TO WEAR GLOVES

LIME + WATER + RUBING = BURN = caustic effects of lime!

Trunkings are lumpedin first layer

Enduit

When first layer is dressed, letIt dry between 3 to 10 days

before the second layer

Renders

On first layer dressed and dry :It’s possible to finish

With a lime and sand coat or a hemp and lime dress coat

In fact a permeable finishion ….

Lime and sand render on hemp + lime Renders

WARNINGWITH LIME YOU’RE OBLIGED

TO DO THE FINISHION IN ONE TIME

!

Second layer ofTechniHemp & Lime

Second layer is made intoa stiff creamly consistency

(hydrated lime only with hemp)

WARNINGIf you begin a wall you must finish

it in the day

!

Put the second layerwith hand (2 to 3cm),

directly on the first

Renders

Dress the second coat with careIt will be easier for finishing

Renders

Let the second layer to dry (~ 2 hours )

before finishing

Renders

TheThe gesturegesture ::circulars movements

+ sweat …

= quality renders …

Finishing (smooth) with theappropriate tool : a plastic float

Smooth hemp plaster(= strong push)

Rough hemp plaster

It’s possibleto make round corner, to put stone in renderor piece of timber …

As hemp plaster is such a malleableMaterial it can ve used to create

Quite artistic effects

BEFORE

Example

AFTER

Enduit

TECHNIHEMP® HEMPWOOL®

in ROOF

Hempwool ®

THE FRAME

Piece of 10 cm

herringbone (ép. 5cm)

Hempwool ®

The indoor frame for insulation

Leave air ( ~ 5 cm) betweenroof and insulation .

Hempwool ®

Two types of interior frame

Hempwool ®

The gap is managedby a timber piece

of 20 cm

Some details

Hempwool ®

The interior frame could be realised withSteel stud

Datas are the same :

- Leave some air (~ 5 cm).- Gap of 25cm between roof and steel stud- Put a double face adhesive on the steel stud toFix the permable vapour regulator

double face adhesive

Hempwool ®

First layer is fix withstaple on timber roof

Hempwool ®

Technihemp will be

stapled on frame

staplingon timber frame

Hempwool ®

stapling toolsimple & efficient !

Hempwool ®

Cross the two layersso as to keep thethermal insulation

!

Hempwool ®

It’s possible to reinforce fixations with some string.

Hempwool ®

Hempwool rolls in two thicknessof 100 mm are inserted between

the rafters

Hempwool ®

The vapour regulator : a necessity « to stop the air flow»

Vapour regulator is stapleon interior timber frame.

(for steel frame used a double face adhesive tofix vapour regulator)

Hempwool ®

Screwed the facing (preferably of

breathable type) on timber frameor steel frame

Hempwool ®

Hempwool ®

TECHNIHEMP® HEMPWOOL®

in TIMBER FRAMEWORK

Insulation of a timber frame

(145 mm)with woodfibre

rain screen

Hempwool ®

Now panelof 145 mmis available

First layer of 40mm hight density (80kg/m3) :

AimAim :: increase inerty of this timber frame

Hempwool ®

Now panelof 145 mmis available

Second layer of 100mm hight density (50kg/m3) :

Hempwool ®

AimAim :: increase inerty of this timber frame

Now panelof 145 mmis available

To cut panels use good tools

Hempwool ®

Now panelof 145 mmis available

For panels in 30kg/m3 : staple on timber frame

Hempwool ®

staple vapourregulator on timber frame

Warning:necessity « to stop

the air flow».Use the adhesive

Hempwool ®

Put batten on the vapour regulatorfor the electricity

Goal :Goal : do not perforate the vapour regulator

Hempwool ®

Screw facing(preferably of breathable type)

Hempwool ®

Hemp brick

TECHNIHEMP® brick in PARTITION

Brick are fixed byA mortar (lime+sand)

Easy to cut

Hemp brick

Easy, simple and quickIn a timber frame

Hemp brick

Hemp brick

Light and easy.

Acoustic and thermal qualities

Hemp brick

Find our technical data on :

www.technichanvre.com