JULY 2009

FIFTH EDITION

CORERANGEFLEXI CAVITY TCB ROCKFLOOR FIRE BARRIER ROLLBATT 600 & 400

INTRO

WELCOME TO THE ROCKWOOL CORE RANGE 6 PRODUCTS ALL MAJOR APPLICATIONSTHE EDGE FOR PERFORMANCEWeve harnessed the awesome power of nature to bring you the exceptional performance of our unique insulation. Rockwool is made from molten volcanic rock to bring you naturally efficient energy saving, unbeatable sound proofing and a level of fire safety that no other general insulation can match.

THE EDGE FOR CONVENIENCEWalls, Partitions & Floors. Unlike other insulation, Rockwool is suitable for acoustic, fire and thermal applications. The key to Rockwool is its flexibility. There are products in the core range to cover all common applications. We have the correct Rockwool solution to meet your system needs.

SUPERB FIT - SUPERIOR PERFORMANCERockwool Flexi fits perfectly every time - wherever you use it delivering all-round superior insulation performance: SUPERIOR SOUND PERFORMANCE Snug fit against frames, studs and joists eliminates gaps.

NONCOMBUSTIBLE INSULATION Acts as a Firestop. A1 European reaction to fire classification Withstands temperatures over 1,000C.

THERMALLY EFFECTIVE Providing a perfect friction fit against frames, joists and studs, Flexi delivers high levels of insulation, minimising cold bridging through the frame.

ENVIRONMENT Rockwool insulation relies on entrapped air for its thermal properties; air is not a VOC and it does not have Global Warming Potential (GWP) or Ozone Depleting Potential (ODP).

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PARTITIONS

TIMBER FRAME WALLS

PARTY WALLS

CEILING OVERLAY

CAVITY WALLS

DRY LINING

LOFTS

RAFTERS

THERMAL FLOORS

ACOUSTIC /FIRE FLOORS

CAVITY FIRE STOPS

FIRE & ACOUSTIC CURTAINS

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FLEXImetal and timber frame buildings.

Timber Frame Cavity WallFlexi Thickness 100 120 14050 mm cavity Breather membrane Sheathing board Rockwool Flexi fully filling stud Vapour control layer Noggings Plasterboard

U-values (W/m2K) a) Using Standard b) Using Tywek Reflex Breather Membrane Breather Membrane 0.38 0.33 0.28 0.33 0.29 0.25

GIVES YOU THE EDGERockwool Flexi the ingenious volcanic rock slab with the patented flexi-edge that makes installation so easy. The flexi-edge is unique and ensures a perfect fit every time, within floor joists, between rafters, metal and timber studs and

Brick outer cladding

U-values allow for 15% timber bridging

Suspended Timber Joisted Floor Unlike rigid insulants, Rockwool Flexi will hold itself within the stud centres required, first time, every time. Timber expands and contracts, Rockwool Flexi can be fitted between damp timber and will expand into the wider space created when the timber has dried out and shrunk back. Other rigid or very flimsy insulants may fall out or be displaced, resulting in cold spots and poor acoustics.The P/A below indicates the Flexi thickness required to achieve an elemental U-values of 0.25 & 0.20 U-Values (PA) Ratio 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.25 Flexi (mm) None 70 90 120 120 120 120 140 0.20 Flexi (mm) 50 120 140 150 160 180 180 180 0.9 1.0

140 140 180 180

ADVANTAGES Reduced installation time Tested solutions to meet thermal, acoustic and fire regulations Unique flexi edge offers accurate fit to all widths Multi-application, fits all typical metal and timber frame spacing No waste Excellent thermal, acoustic and fire properties Easy to handle and install without gaps195 x 47 mm gs rade r sof w a 400 mm cen res r 100 mm R Fe r by wire mesh r

Flooring grade chipboard Rockwool Flexi Polypropylene netting or similar to support insulation Vertical edge insulation Ventilated air space

Full Fill Rafter with Breather MembraneFlexi Thickness (mm) 200 (100+100) 220 (100+120) 240 (100+140) U-values (W/m 2 K) 38mm Rafters 38mm Rafters @ 600mm Centres @ 400mm Centres 0.21 0.20 0.18 0.22 0.21 0.19

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r re mesh ceiling

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r rd c

1hr Fire Resistant Floor (refurbishment)

INGENIOUSVOLCANICROCK SLAB with the

SIZE AND USAGE INFORMATIONSize (Length & Width) 1200mm x 600mmThickness (mm) 50 60 70 90 100 120 140 Coverage per pack (m2) 8.64 7.20 5.76 4.32 4.32 3.60 2.88

FLEXI

flexi-edge that makes installation so easy!Simply squeeze the patented Flexi into the space required and let go, it will spring back for a perfect fit every time. Even if the studs are not plumb Rockwool Flexi will fit the space between the studs perfectly without the need for cutting or waste. Rockwool Flexi Application for Timber Stud Walls Rockwool Flexi thickness 50mm, plasterboard 1 x 12.5mm (mass 11kg/m ) each side, stud size 38 x 75, fire resistance 30 minutes,2

Size (Length & Width) 1200mm x 400mmThickness (mm) 50 Coverage per pack (m2) 5.76 4.80 2.88 1.92

sound reduction Rw 40 dB As above using 2 x12.5mm layers of 11kg/m plasterboard each2

60 100 140

side, fire resistance 60 minutes, sound reduction Rw 46dB Acoustic Metal Studs Rockwool Flexi thickness 50mm, plasterboard 1 x 12.5mm plasterboard (8.0kg/m 2) each side, stud size 50mm, fire resistance 30 minutes, sound reduction Rw 41dB As above using 70mm Rockwool Flexi, stud size 70mm, 2 x 12.5mm plasterboard (8.0 kg/m2) each side, fire resistance 60 minutes, sound reduction Rw 55dB Timber Joist Domestic Internal Floor To meet part E2 Rw 40 dB Rockwool guidance specification Standard 18mm t&g flooring chipboard, mass per unit area 12.4kg/m 2 Timber joists @ 400mm ctrs 100mm thick Rockwool Flexi between joists Single layer of 12.5mm plasterboard ceiling mass per unit area 8kg/m 2

38 75 mm timber studs at 600 mm centres 50 600 mm wide Rockwool Flexi

One layer of 12.5mm plasterboard both sides (Mass 8Kg/m2)

12.5 plasterboard both sides (Mass 11Kg/m2)

75

50 mm Flexi

Rockwool Flexi Application for timber stud walls Rw 40dB

Acoustic metal studs Rw 41dB

Timber joist domestic internal floor Rw 40dB

CAVITYmethod of insulating new masonry cavity walls. The lightweight insulation batts considerably reduce heat loss without permitting water transmission from the outer to the inner leaf. The risk of condensation is also reduced and intermittent heating systems will be more effective.

FULLY FILLED & FULLY PROVENRockwool Cavity provides a completely reliable and cost effective

ADVANTAGES BBA certified for all exposure zones Acts as a cavity barrier Water repellent Excellent thermal and fire insulation Superior fit against blockwork

INSTALLATION GUIDE1. The installation of the batts should commence below the DPC* to minimise cold bridging. The bottom row of ties should be at 450 mm centres. If necessary, the width of the first course of batts can be cut to suit the height of the next row of wall ties. The width of cut batts should always be 5mm greater than the width to be insulated,eg wall tie centres. 2. Fit Rockwool Cavity by compressing between the two rows of wall ties to form a clean and tight butt jointed course. Wall tie drips should be located centrally in the Batts. Ties must be inclined downwards towards the outer leaf. 3. It is essential that all joints between Rockwool Cavity batts are clean and tightly butted. 4. Raise the second leaf to the same level as the batts.* preferably by at least 150mm Rockwool Cavity showing Rockwool edge and floor insulation

EASIER TO CUTD o e s n o t s l u m p, n o g a p s ,

The as-built cavity width must not exceed the following dimensions:Nominal Batt thickness (mm) 50 65 75 80 90 100 110 Maximum as-built clear cavity width (mm) 60 75 85 95 105 115 125

, & FIT.Proven over 40 years

Water Resistant

CAVITY

FITS TIGHTLY

t o i n t e r n a l b l o c k wo r k

DIMENSIONS50 65 75 80 90 100 110 120

Size (Length & Width) 1200mm x 455mm m /pack6.55m2 5.46m2 4.37m2 4.37m2 4.37m2 3.28m2 3.28m2 2.73m2

2

Masonry Full Fill Cavity Wall 102mm facing brick outer skin, Rockwool Cavity Full Fill, internal concrete block 100mm, plasterboard on dabsClean mortar fron block wall

Internal Block Block K Value Insulation Thickness 65mm 80mm 90mm 100mm

Dense 1.130 W/mk U-value 0.43 0.37 0.34 0.31

Medium/Light 0.190 W/mk U-value 0.37 0.32 0.30 0.27

Aircrete 0.110 W/mk U-value 0.34 0.30 0.28 0.26

BUILDING REGULATIONS REQUIREMENTSPart L 2006 for England and Wales Extensions Renovation & Repair New build dwellingPrevent mortar dropping onto slabs or wall ties

U-value 0.30 0.35 0.28 - 0.25

FIRE SAFETY FOR CAVITIESPart of the Firepro range Rockwool TCB Cavity Barrier is a polyethylene sleeved Rockwool strip engineered to provide fire safety for timber frames, metal frames and traditional masonry cavities. Standard TCB Cavity Barrier comprises a strip of Rockwool inserted into a translucent red polyethylene sleeve incorporating two flanges designed for fixing. Rockwool TCBs have been fire tested to 60 minutes integrity and 30 minutes insulation and is used to provide a half hour cavity barrier as defined in Section 33 of the Building Regulations Technical Guidance Document B.

TCB

ADVANTAGES Reduced installation time Meets Building Regulations requirements Simple to install and fix Water repellent Maintenance free Backed by Fire Test information

INSTALLATIONFixing of the TCB Cavity Barrier to the inner leaf is carried out only at the flanges using non-corrosive staples or clout nails. These fixings should be located at maximum 150mm centres in both horizontal and vertical applications. Joints between TCBs must be closely butted. At door and window jambs, the horizontal barrier should overlap the vertical barrier to ensure a close butted joint is maintained between both barriers.

COMPRESSES

to a tight fit,Maintenance Free and Simple to INSTALLTCB Length (mm) 1200 1200 1200 1200 1200 1200 To suit cavity width 50 - 55 56 - 65 66 - 75 76 - 80 91 - 100 101 - 110 TCB size 65 x 65 75 x 75 85 x 85

TCB

90 x 90 110 x 110 120 x 120

clout nails or staples

TCB Cavity Barrier

TCB at door or window jamb

loft space

Rockwool Roll TCB Cavity Barrier as cavity closer Rockwool HP partial fill insulation Horizontal application of TCB TCB used as cavity closer

ROCKFLOORTHERMAL & ACOUSTIC FLOOR SOLUTIONSAcoustic Rockfloor is a tissue faced high compressive strength product designed as a mono density, rebated slab suitable for acoustic treatments of intermediate floors. Thermal Rockfloor is a unique dual density, high compressive strength Rockwool slab designed specifically for use as thermal insulation for floors.

ACOUSTIC PERFORMANCE SEPARATING FLOORSFor the first time a minimum airborne performance standard has been set for separating floors. Approved Document E describes a range of constructions that should achieve these standards if built correctly.

ADVANTAGES Excellent acoustic and thermal properties High compressive resistance Easy handling and fitting Fully tested Minimises thermal and acoustic bridging

ACOUSTIC SOLUTIONS FOR NEW BUILD SEPERATING FLOORS

DIMENSIONSRockfloor boards are manufactured to a standard size of 1000 mm x 600 mm, and in a range of thicknesses from 25 mm to 100 mm. 30 mm and 40 mm thick Rockfloor boards have all four edges rebated (coverage area 980 mm x 580 mm, allowing for rebates).

13mm t&g flooring grade chipboard on 15mm dBcheck wallboard on 30mm Rockwool Rockfloor resilient layer on 15mm OSB on

200 x 50mm timber joists at 400mm centres Resilient bars fixed at right angles to joists at 400mm Ceiling finish 2 layers of 15mm plasterboard mass 13kg/m2 per board

LAYING METHODThe Rockfloor boards are laid lengthways to the longest wall, (the tongue on the first row being removed), in a staggered joint pattern, tissue face upwards. The offcut at one end of the first row is then used to start the next row and similarly with subsequent rows. 65mm sand and cement screed on 40mm (min) propietary screed 30mm Rockwool Rockfloor resilient layer on Pre-cast concrete plank floor with all joints fully grouted (min/max per unit area 300 kg/m) Single layer 12.5mm plasterboard fixed to resilient bars which are fixed to timber battens 50mm Rockwool Flexi between battens

ENVIRONMENTRockwool products rely on trapped air for their thermal properties, which has neither ozone depleting nor global warming potential.

THERMAL PERFORMANCE FOR GROUND FLOORS PART L 2006U-value Extensions Renovation & Repairs New Build 0.22 0.25 0.20 - 0.18

THERMAL PERFORMANCEU-values for ground floors are dependent upon size, shape, soil type and perimeter edge insulation etc., it is not possible to quote specific values. The following tables show insulation thickness required to suit the following exposed perimeter (P) and floor area (A) ratios. CONCRETE GROUND BEARING SLAB 100mm concrete slab, insulation & 65mm screedP/A ratio 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 U-value 0.25 nil 30mm 60mm 75mm 85mm 90mm 95mm 105mm 105mm 110mm U-value 0.20 nil 65 95 110 120 130 130 140 140 145Sand and cement screed Concrete ground bearing slab Rockfloor insulation DPM/blinding Hardcore Offcuts of 30mm Rockfloor vertical edge insulation*

ROCKFLOOR

BEAM & BLOCK SUSPENDED FLOOR 100mm concrete beam & block, insulation & 65mm screedP/A ratio 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 U-value 0.25 nil 65mm 80mm 95mm 100mm 105mm 105mm 110mm 115mm 115mm U-value 0.20 50 100 120 130 135 140 145 145 150 150Beam and block suspended floor Ground bearing concrete slab

FIRE BARRIERINHIBITING THE SPREAD OF FIRE AND SMOKEAs part of the comprehensive Firepro range of products, Rockwool Fire Barrier systems offer labour-saving solutions to prevent fire and smoke spread within roof and ceiling voids for all general conditions encountered on site. Rockwool angle support system. Bend tongues out to 90 andO

impale barrier onto them. The slotted clamping plate is then fitted by pushing the tongues through the slots and these are then bent over the face of the clamping plate completing the process. The vertically hung Fire Barriers are capable of achieving both integrity and insulation fire protection periods from 15 to 120 minutes. It is Rockwools essential insulation performance that limits the heat transfer through the barriers, preventing ignition of combustible materials in adjacent areas. The new patented support system offers a quick, cost effective installation method for the Fire Barriers for periods up to 60 minutes. This focus on ease of construction and installation has the added benefit of reducing the risks of installation error.120 minute systems are also available using the traditional support methods. Extended drops are easily catered for, with the system capable of maintaining its performance in void heights up to 10.5 metres.

ADVANTAGESFixing solutions to concrete decks Fast patented angle and clamping plate system No nuts and bolts to fasten, simple hammer fix Simple angle support with stamped tongue One angle supports 2 barriers for 1 hour Excellent acoustic properties Fixing solutions to timber and steel No bolts required Standard no. 10 wood screws for timber fixing Fixings for clamping plate extended to 450mm Speed of installation increased Costs of installation reduced

INSTALLATION GUIDEFixing system incorporates an angle support and clamping plate. For fixing to timber Rockwool clamping plate is used, compressing the barrier to the timber, fixed at 450mm centres using No.10 woodscrews. Fixing to concrete soffits, the pre-punched angle support is fixed using Hilti DBZ or Ejot ECL 35 hammer set anchors at max. 750mm centres. Fixing to steel purlins, use Hilti SMD 02Z (5.5 x 70mm) self-tapping screws at max. 450mm centres.

FIRE PERFORMANCE AND SPECIFICATIONPRODUCT1/ 2

FIRE PERFORMANCE Integrity (mins) 60 60

Insulation 15 30

SPECIFICATION Report No. 116911 119720 Fire barrier foil faced (overlapped joints 100mm) 116912

Notes 1 layer 50mm Plain Faced 1 layer 60mm fire barrier Foil Faced 2 layers 50mm fire barrier Plain Faced. Staggered vertical joints

hour cavity barrier hour fire barrier

1/ 2

1 hour fire barrier

60

60

ACOUSTIC PERFORMANCEThe correct use of Fire Barrier within structural cavities and voids will reduce the level of transmitted sound.ROOM TO ROOM ATTENUATION 1. Typical lay-in grid suspended ceiling 2. As above, with 50mm Rockwool Fire Barrier 3. Applied as 2, but Rockwool Fire Barrier foil faced 4. Applied as 2, but two thickness of 50mm Rockwool Fire Barrier-both foil faced 5. If ceiling is plasterboard, add between 2-3 dbNote: values are approximate

RW dB 30 42 44 50

FIRE BARRIER

support angle fixed to soffit at max 750mm centres

min 200mm tiled or slated roof Rockwool Flexi 35-49mm thick timber trussed rafter 0.9mm wire stitching to secure strips to main barrier - stitches typically 100mm long No. 10 wood screws (or large washer and screw) at max. 450mm centres 50mm Fire Barrier

clamping plates fixed at 300mm centres

clamping plate fixed at 300mm centres

concrete soffit 300mm 300mm max max two layers of 50mm Rockwool Fire Barrier, vertical joints staggered and stitched and clamped to head of wall suspended ceiling

min 50mm

fire-resisting wall

ROLLBATTNothing could be simpler than installing Rockwool volcanic rock roll. Its designed to accurately fit between either 600mm or 400mm centre timbers. Rockwool RollBatt is supplied in 2 x 600mm rolls or 3 x 400mm rolls dependent on your specific requirements.

ADVANTAGES Excellent thermal performance for a cosier home Higher density than lightweight glass fibre for superior fit Does not slump Best Fire and Sound performance available for a roll

INSTALLATION GUIDE Remove outer packaging Remove the inner wrap Lay insulation between joists, starting from the eaves Ensure eaves ventilation is maintained Lay top layer of Roll at right angles to the bottom layer

ENVIRONMENTRockwool products rely on trapped air for their thermal properties, which has neither ozone depleting nor global warming potential.

HOW MUCH WILL YOU NEEDWidth (mm) 2x600 or 3x4004800 2x600 or 3x4003200 2x600 or 3x4002800 Length (mm) 4800 3200 2800 Thickness (mm) 100 150 170 Coverage per pack (m2) 5.76 3.84 3.36

ROLL THERMAL PERFORMANCEFirst layer Additional layer Roll width between joints, over joists, to suit joist (thickness mm) (thickness mm) centres (mm) 100 100 100 100 100 100 100 100 100 100 (+) (+) (+) (+) (+) (+) (+) (+) (+) (+) 100 100 150 150 170 170 200 200 250 250 400 600 400 600 400 600 400 600 400 600 U-value (W/m2 K) 0.22 0.21 0.17 0.17 0.16 0.16 0.15 0.14 0.12 0.12

PART L 2006U-value requirement for Lofts (England & Wales) Extensions, renovation and repair work New build dwellings U-value 0.16 U-value 0.16 - 0.12

ROLLBATT

THIS BOOKLET IS MEANT ONLY AS A GUIDEIf you require further information please refer to Rockwool datasheets on the website at www.rockwool.co.uk. While we have endeavoured to make the information in this guide as accurate as possible, we cannot be held responsible for printing errors or changes to future building regulations.

PRECAUTIONProduct which has become wet should not be installed until it has thoroughly dried out.

SAFETYWhen installing insulation in enclosed spaces a suitable face mask which bears the CE mark should be used. In applications such as lofts etc, a properly fitted disposable face mask to BS/EN149 is adequate. When handling, wear gloves. Should skin irritation be experienced it can be lessened by rinsing hands under cold running water before washing. For further information refer to guidance note EH46 published by HMSO and technical datasheets available from the Rockwool website. Rockwool Limited reserves the right to amend or alter the specification of their products without notice as their policy is one of constant improvement. The information contained in this booklet is believed to be correct at the time of publication.

Dealer Stamp

Rockwool Ltd, Pencoed, Bridgend, CF35 6NY, UK Customer Support: 0871 222 1780 Facsimile: 01656 862302 Web: www.rockwool.co.uk