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Contents

STORING AND HANDLING OF ROOFING SHEETS ....................................................4Receiving 4 Unloading 4 Storing 4Cutting 4Installing 5Completed roofs 5Cleaning 5Maintenance 5

GENERAL INSTALLATION INSTRUCTIONS ..............................................................6Roof pitch 6Roof battens 6Ventilation 6Roof underlayer 7Screw fixing 7Nail fixing 8Sheet dimensioning 8Installation of roofing sheets 8Special instructions for roofing sheets 9

HELPFUL TIPS ..................................................................................................10Lateral overlapping 10Extension overlapping 10Ridge 10End gutter 10Side gutter 10Outer mitre 10Inner mitre 11Flashing for inner mitre 11Foldings 11Snow stop 11Soakers 11Roof opening units 11Ventilation pipes 11Screw fixing 11Dimensioning of hipped roofs 11

SPECIAL INSTALLATION INSTRUCTIONS ..............................................................12Rose wave, Clay and Slate 12

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Storing andhandling of

roofing sheetsThis brochure gives

general instructions for fixingand fixing accessories,structures, details, andhandling of Ruscana roofingsheets. Instructions are asgeneral as possible, and theycan be applied for most rooftypes and solutions. Read theinstructions carefully beforeyou begin working with thesheets.

RECEIVING

Check that the deliveredgoods correspond to theorder, and that the deliverycontains all the materialmentioned in the deliverynote.

A fault in the deliverymust be reported immediatelyto Ruscana, and a productcontaining a fault must notbe installed. Ruscana is notresponsible for any costscaused by replacement ofproducts which have beeninstalled against the above-mentioned instructions.

Quantity and quality ofdamages during thetransportation must bemarked on the delivery note,and it must be countersignedby the delivery driver. Thetransportation company issolely responsible fordamages incurred duringtransportation.

GENERAL

Protective gloves shouldalways be used whenhandling sheets. Handlingsheets in strong wind mustbe avoided.

UNLOADING

We recommend thatRuscana roofing sheets will beloaded and unloaded by cranewith adequate amount ofsupporting timber battens.Lifting slings must be at least2 inch wide.

Sheet edges must beprotected carefully. Distancebetween supports must be1/3 of sheet length.

Short bundles of sheetscan be lifted with a fork lift.In this case, lifting pointsmust be protected withutmost care.

If no lifting equipment isavailable, the sheets must beunloaded one by one.

Do not go under the loadwhen the sheets are beingtransferred. Ensure that theslings are sound. Sheetbundles are to be unloadedhorizontally, and they mustbe placed in balance on aneven base. Be careful whenopening the package (andalways in handling thesheets), since the sheet edgesand corners are very sharp.

You must not pull thesheets against each other.

The sheets must be protectedagainst impacts.

While handling sheetsseparately, consider that longsheets must not be liftedfrom ends. The best methodis to 'lug' the sheet from thedrainage channel side.

STORING

Ruscana roofing sheetswith plastic coating can bestored outside. Sheet bundlesmust be kept at least 8 inchesabove the ground on top ofsupporting battens. Thedistance between battensshould be about 3 feet. Amaximum of four bundlescan be placed on top of eachother. When the sheets are tobe stored a long time (morethan two weeks), they mustbe covered.

Unpainted, galvanizedsheets must always becovered. For long-termstoring, the sheets must beseparated from each other,e.g. using wooden battens.This is to avoid moisturegetting between the sheetsand causing "white rust"which can be unsightly anddifficult to remove.

CUTTING

Ruscana roofing sheets aredelivered cut to requiredlength. In some cases (hippedroofs, ventilation pipes etc.),

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sheets must be cut on site.Cut the sheets using a

circular saw, nibblingmachine or jig saw equippedwith a suitable blade. Use ofcutting disc is notrecommended, as the coatingwill be damaged by the heatbuild up from the hot sparks.

CAUTION: A negativecutting angle must be usedwith a circular saw.

INSTALLING

Scaffolding used forinstallation must be high

enough and within anadequate working distanceand order in accordance withlocal regulations. Fortransferring of sheets ontothe roof, tiers that are solidenough shoud be built fromthe side gutter to the ground.During transfer, at least two,but preferably three personsare needed: one should pullfrom the roof, the otherspush from below, holding thesides of the sheets. CAUTION:Do not go under the sheets.The sheet must be supportedfrom several points so that itwill not bend.

While working on the roofyou must be extremelycareful, and we recommenduse of rubber sole shoes.Remember that icy and wetsheets are very slippery. Werecommend that you useinstallation ladders,especially if the roof-base cannot bear the load of foottraffic. Sheets can also belifted onto the roof by craneand distributed across theroof from the loading pointsprovided that the roofstructure can take the load.

COMPLETED ROOFS

The roof must beequipped with adequateladders and roof bridges formaintenance of chimneychannel etc. It is advisable toinstall snow stops over the

doors.While walking on the

completed roof, the sameprecautions must be taken asin the installation phase.

CLEANING

Any drilling and cuttingwaste from the installationmust be brushed awaycarefully, otherwise thesteel chips will stain thesurface.

Dirt spots in sheets canbe removed by usinghousehold washing-up liquid.Strong detergents must beavoided.

MAINTENANCE

Maintenance, paintingand repairing of steel sheetsis very easy. For Ruscanaroofing sheets with colorcoating, repairing paints areavailable in colours whichmatch the sheet coatings.Small damages in coatingcan easily be repaired byusing these maintenancepaints.

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Generalinstallationinstructions

Before dimensioning theboarding battens, consultwith a structural engineer.

VENTILATION

Good ventilation andproper installation ofthermal insulation andvapour barrier help to keepthe temperature in the spaceunder the roof the same asthe outside temperature.Therefore, the ventilatedspace must have aconnection to the outside air.

Ventilation must beplanned so that theventilated air can flowwithout any obstacles fromthe eaves to the ridge.Exhaust air openings mustbe placed in the highest pointof the roof. The followingoptions are possible: a foamfiller block with ventilationprofile, ventilation grills inboth gables of the building, aridge capping withventilation channel orventilation ducts.

In roofs that are difficultto ventilate (thermalinsulation near the roofingmaterial), either a ridgecapping with ventilation

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channel or ventilation ductsin the ridge must be used inorder to ventilate theunderlayer.

UNDERLAYER

If the roofing sheets areinstalled in accordance withthese instructions and theyare fixed with self-drillingscrews, an underlayer is notneeded in order to ensure thetightness of overlap.However, we recommend thatan underlayer is usedalways, when the ventilationin the space under theroofing is inadequate. In thiscase, the underlayerprevents the condensatingwater from dripping onto the

insulation.

SCREW FIXING

We recommend that theroofing sheets will be fixedwith self-drilling screws.

The screw is always fixedthrough the bottom of thewave. This ensures that thefixing will be tight anddurable, since the roofingsheet is pressed tightlyagainst the battening.

The thick and durablesealing of screws is made ofelastic EPDM rubber. It hasbeen vulcanised into thecambered washer of thescrew.

There is a self-drillinghead in the screws so that

the roofing sheet needs nopre-punching. The screwshave an hex head of 8 mm,and our selection of productsincludes also fixing bits forthe screws.

The tenacity of self-drilling screws is almostdouble compared to theannular ring-shanked nail sothat many fewer screws areneeded than nails. Screwsretain their original tenacity,since a screw is twistedbetween fibres of the timberwhereas an annular ring-shanked nail presses thefibres down. As the timberdries, the fibres will bestraightened, which will raisethe nail upwards. This is oneof the primary causes of

Underley

Lath

Underley

INSULATION

Airspace

7

loosening nails.Absolute security is

always achieved with screwfixing, as the screws canalways be screwed to thedesired tightness, whereas itis difficult to hit a nailexactly to a desired depth.

The sealing and washerof self-drilling screws hasbeen designed so that thescrew can be set 15° out fromthe vertical line, and thesealing will still protect thefixing point as effectively asin perpendicular fixing. Werecommend using the samescrews in overlaps as infixing of flashings. There is ashort unthreaded part belowthe screw-head which willprevent excessive screwing.

A usual drilling machineequipped with variable speedcontrol can be used inscrewing. Drill chuck HR-8can be used.

NAIL FIXING

Some of the roofingsheets can be fixed also bynailing the sheets on top ofthe waves.

Before nailing, the sheetsmust be pre-punched with apegging awl or drillingmachine. The nails mustalways be hit perpendicularlyagainst the wave surface.You must not hit the nail tooforcefully, in order to avoidfuture leakage, however asealing which has been hitwith too little force will notbe pressed against the sheettightly enough.

SHEET DIMENSIONING

Ruscana roofing sheetsare delivered cut to requiredlength.

The sheet length isnormally the length of topflange + verge board. (Thesheet is placed to the pane ofthe roof so that it exceedsthe verge board end by 2inches. By doing so, a smallventilation slot is created onthe ridge.) Take themeasures from the buildingdrawings. Take also crossmeasures from the envelopein order to ensure that the

envelope is straight.The number of sheets is

calculated by dividing theridge length by the effectivewidth of the sheet and byrounding up this value to aneven figure.

For instance, RuscanaClay 43 1/4 inches

- effective width 43 1/4 inches- ridge length 728 1/4 inches- number of sheets= 728.3/43.3= 16.82, i.e. 17 pcs x 2 = 34 pcs.

INSTALLATION OF ROOFINGSHEETS

During installation the

sheet must be protected fromimpacts, and you should notdraw the sheets against eachother. Temporary paneladders protect the sheetsand facilitate moving on theroof.

Moving on theroof

Step only on thewave bottom and not on top of the sheets

Generalinstallationinstructions

8

Sight rails are practical insheet installation, since thefixing rows become straightand the fixings will be placedon top of the sheets.

Sheets of 0.5 mm can nottolerate big single pointloads, so you must movecarefully on top of thesheets. Step on the bottom ofthe wave, not on top of thewave.

SPECIAL INSTRUCTIONS FORROOFING SHEETS

Profiled roof sheets havetransverse patterns andcapillary slots, which meansthat they cannot be usedcrosswise on the other sideof the roof, like usualtrapezoidal sheets.

If sheets with differentlengths are used on the sameroof pane, transversepatterns must match in pane.Therefore the dimension ofcantilever (1) must bedivisible by the followingmeasures:ROSE WAVE 16 inchesCLAY 13 3/4 inchesSLATE 33 3/4 inches

Each cantilever must bedimensioned separately.

Ruscana Steel will bepleased to help you indimensioning of hipped roofsand roofs with cantileversetc. with an ADPdimensioning program.

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Helpfultips

End eaves Outer mitre

Lateral overlapping Extension overlapping Ridge

Side eaves

In roofs with a small pitch, seams canbe made tighter by using a greater overlapthan is recommended, or by using extrascrew fixings.

SCREW FIXINGLateral overlapping on top of wave:

maximum distance between fixings is c/c19 inches.

Gutter flashings in gables must extend atleast to the top of the first wave of theprofile sheet. If the profile sheet does notend evenly on the gutter, the sheet must becut or be overlapped in order to suit to thegutter.End gutter flashings are to be secured tothe roofing sheet either with screws orhidden rivets. The flashings must beoverlapped at least 4 inches.

Extension overlapping is to be placedin a place where the sub-structure givesthe best support. Sheets must beoverlapped at least 8 inches.

Distance from fixings to the sheet edgemust be approximately 2 inches. If you usescrews, the sheets must be fixed from thebottom of each wave, if you use nails, fromthe top of each wave.

Always use a foam filler block of 3x10mm in the extension overlapping seam.

A foam filler block with the sameprofile is to be installed between the ridgecapping and roofing sheet. A ventilationfiller block is available for over 1 1/4 inchhigh roof profiles, which improves theridge ventilation.

Unprofiled ridge cappings must beoverlapped at least 4 inches. In addition,the seams can be tightened with sealingmass.

Ridge capping is always to be securedto the roofing sheet from the top of thewave, either with screws or pressure-proofhidden rivets. Distance between fixings isabout 12 inches.

In outer mitres, ridge cappings are used.They will be installed in accordance withinstructions in the chapter "Ridge". By usingY-pieces for hipped roofs and end pieces forridge capping, it is easy to build a tight andneat hipped roof. A foam filler block withouter mitre profile is used between the ridgecapping and roofing sheets. Its sealing partshave been cut diagonally. These blocks areavailable with both right and left cutting.

The roofing sheet has to overlapped about1 1/2 inches beyond the eave boarding. A foam filler block with profile can be usedbetween the gutter flashing and the roofingsheet, but in this case, you must ensurethat the ventilation air can enter under theroofing from another place.

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Inner mitre Foldings

Snow stop Soakers Roof opening units

Screw fixing Dimensioning of hippedroof

The part of the roof that is covered withinner mitre flashing is to be boardedcompletely. The inner mitre flashings mustbe overlapped at least 6 inches. In addition,the seams are to be tightened with sealingmass. A foam filler block with inner mitreprofile is used between the ridge capping androofing sheets. Its sealing parts have beencut diagonally. These blocks are availablewith both right and left cutting. The flashingis to be fixed into the sub-structure togetherwith roofing sheets with self drilling screwsfrom the bottom of the waves. The distancebetween fixings is about 12 inches. On theridge, the end of the inner mitre flashingmust extend under the ridge capping, andthe joint is to be sealed carefully.

The upper part of the flashing is fixedto the substructure with a fixing distance ofabout 16 inches. The flashing is fixed to theroofing sheet with a fixing distance of about16 inches, either with screws or pressure-proof hidden rivets. If the fold isperpendicular to the waves of the roofingsheet, a foam filler block with a profilemust be used between the flashing and theroofing sheet. The flashing is fixed with afixing distance of 12 - 16 inches.

The fold flashing is overlapped at least4 inches by the roofing sheet, and theseams are to be sealed with seaming mass.

The joint between the flashing and thewall is to be sealed depending on the sub-structure.

Ruscana personnel will be pleased tohelp you in dimensioning hipped roofs andcantilevers of different kinds. Whendimensioning you must consider thatprofiled sheets do not suit crosswise to theother side of the roof like ordinary roofingsheets.

The sheets are fixed at the eave andridge at least from the bottom of everysecond wave.

The consumption is 5 screws per 10 sqF.The sheets are overlapped laterally from

the crest, maximum fixing distance is 20".

If you want to prevent snow fromfalling down from the roof in front of doorsor pathways, use the snow stop LE, whichincludes both the snow stop and thesupport.

The snow stop is to be installed underthe second lateral pattern, that is about13 3/4 inches from the eave.

The support is to be installed to theupper end of the snow stop, between thesnow stop and the roofing sheet. Both thesnow stop and the support are fixedsimultaneously to the boarding with a deckscrew from every second wave crest. Fromthe lower end, the snow stop is to be fixedto the roofing sheet with a deck screw fromevery second wave crest.

Foots of round pipes, antennas etc.penetrating the roof can be sealed best withsoakers made of LPD rubber. Soakers ofseveral sizes are available for pipes withan outer diameter from 2 - 14 inches.

There is a collar of aluminium/lead inthe soakers, which is to be bent to suit theprofile of the roofing sheet. A hole for pipeis cut to the roofing sheet, and a hole,which is smaller than the outer diameter ofthe pipe, is cut in the soaker. By usingwater as lubrication, it is easy to pull thesoaker over the pipe. The soaker is to befixed to the roofing sheet with screws orpressure-proof hidden rivets. The joint is tobe seamed carefully with sealing mass.

Ready ventilation pipes, trapdoors androof opening units make it easy to connectextraction fans and ventilation tubes to theroofing sheets. All units are made ofreinforced plastic.

The unit is installed directly on top ofthe sheet. All joints are seamed carefully.

Extraction fans and other heavyobjects must be supported by the roofstructure, not by the roof opening units.

CAUTION: Exceptional snow loadsmust be removed from the top of the units.

Flashing for theinner mitre

A flashing for the inner mitre can beinstalled in the fold, in which case no sealingwill be needed. This improves theappearance of the mitre. The flashing isfixed to the roofing sheet either with screwsor with rivets from the crest of the wave.

Snow stop

Support

A deck screw from every secon

d wave to the boarding

A screw fromevery secondwave to theroofing sheet

Installation of Clay

Installation of Slate

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InstallationInstallation of sheets is always started on ridge roofs

from the gable, and on hipped roofs from the point ofhipping.

The capillary slot in the edge of the sheet is alwaysplaced lowest. In all Ruscana profile sheets, the capillaryslot is located in the left edge.

The installation can be started either from the left orright gable. If the installation is started from left to right,the previous sheet must overlap the sheet to be installed.This also prevents the sheet from sliding.

Install the sheets in line with the lower gutter, theoverhang is about 1 1/2 inches.

HELPFUL TIPInstall the first sheet, and fix it with one screw from

the ridge. Fasten then the next sheets first from the edgeseam precisely in the same line. Fix the sheets together atthe gutter with a screw from the wave crest of the firstlateral wave.

If the sheets do not set in line, lift the other patternsfrom their places, after which you can place the sheetsprecisely in same length more easily. Fix with a screw,press the other patterns to their places proceeding fromthe gutter to the ridge, and fix the sheets together with adeck screw from the wave crest at the point of lateralpattern, under the pattern.

Install this way three or four roofing sheets. Afterthis, set a field of three or four sheets exactly in line withthe gutter, fix the sheets to the battening, and continueinstalling the sheets.

SUMMARY: Position the overlapping sheets preciselyin the same length - fix the sheets together - fix the sheetsto the battening.

Special dimensions

Joining of profiled sheetsRuscana sheets are always joined from the lateral

pattern, overlap is about 8 inches. The measures ofroofing sheet parts are always determined separately.

Elite, Monterrey and Cascade are fixed normally, thatis from the extension point in every second wave, underthe lateral pattern.

If sheets of different length are used on the samepane, you must consider the following:

The measure A in the figure must be divisible with13 3/4 inches so that the Clay or Slate lateral waves for different sheet lengths will match.

If the measure A is not divisible, the pane can be donefrom two parts, overlapping at a minimum 8 inches.

In some cases, also the cutting of sheets at the guttermay be the most practical solutions.

The details must be planned case by case.

FixingScrew fixing is made with self-drilling RA screws from the bottom of the wave under the lateral pattern. The

consumption is 5 screws/10sqF. Fixing of edges is done from every second wave.

Profiled sheets are always joined together from the lateral patterns. The measures of roofing sheet parts are always determinedseparately!

L1=(

nxleng

th o

f the

pat

tern

) +

8"

L2=L

-(nxleng

th o

f the

pat

tern

)

L=leng

th o

f the

roo

fing

and

so o

n

from every secondwave; to the bottomof the wave!sideways overlapping; in the point of every lateral

pattern from the wave crest; under the lateral pattern!

→

Hippedroof

Installation Instal

lation

End piece for hipped ridge LAPK

→ → →

Y-piece for hipped roof L

YH

13

30

118

118

LH3 Ridge capping, flat, length2000 mm

LYH Y-piece for hipped roof

LPL Special verge flashing, length 2000 mm

LHP Ridge capping, round,length 2100 mm

LTH Ridge capping T-piece

Sealings, for each profile

LHPK End piece for ridgecapping

LSPL Cover flashing for internalvalley, length 2000 mm

RA-4.8 x 28 Self-drill screw NKK Flange head spike

LAPK End piece for hipped roof

LE Snow barrier, length 2000 mm

VA Soaker, for antennas(of rubber)

LSJ Valley flashing, length 2000 mm.