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  • BEST VALUE TILE EFFECT ROOFING SHEETS AVAILABLE IN THE UK.
    BEST VALUE TILE EFFECT ROOFING SHEETS AVAILABLE IN THE UK.
  • UNDER £10 /m2 FOR PANTILE EFFECT PLASTIC COATED STEEL SHEET
    UNDER £10 /m2 FOR PANTILE EFFECT PLASTIC COATED STEEL SHEET
  • FROM THE LARGEST INDEPENDENT DISTRIBUTER OF SHEET ROOFING IN SOUTH EAST ENGLAND
    FROM THE LARGEST INDEPENDENT DISTRIBUTER OF SHEET ROOFING IN SOUTH EAST ENGLAND
  • EASY TO HANDLE AND INSTALL. IDEAL FOR DOMESTIC, AGRICULURAL OR INDUSTRIAL APPLICATIONS
    EASY TO HANDLE AND INSTALL. IDEAL FOR DOMESTIC, AGRICULURAL OR INDUSTRIAL APPLICATIONS
Tile Effect Roof Sheet - Fitting Guide PDF Print E-mail

How to calculate and install tile effect metal roof sheets

Minimum roof pitch that Duratile can be used is 10degree

Measuring your roof and calculating which sheet lengths to use
When measuring your roof for Duratile sheeting it is important to be accurate to ensure you get the sufficient coverage without over ordering and having surplus material.  To make calculations easier we advise taking all measurements in meters rather than feet and inches.

The first measurement you should take is the width of the building / ridge length.  Once confirmed you need to divide the figure by 1.1 (which is the cover width of each Duratile sheet) to give you the total sheet widths to cover the roof length.  

Note:  You always need to round the calculated number up to determine sheet width.  This may mean that you will need to cut down the length of the last sheets in your run.  If you are using verge trims down your eaves, they have 200mm wings which can be used to bridge small gaps of up to 75mm, often avoiding the need for an extra sheet run or for sheets to be cut.

The second measurement you should take is to determine the slope length / length of sheeting run.  This should be taken from the centre ridge line to where the sheets would fall into the centre of your gutter.  (Duratile sheets should not overhang the building by more than 100mm from the last support).  Once confirmed this measurement is the total sheet length coverage that you need to achieve using a combination of Duratile sheets.
 

To determine what sheet sizes to use:

Duratile sheets are only available in 3 different lengths:

  • 3 Tile Long Sheet = 1200mm long (3 tiles @ 350mm + Front lip @ 30mm + Back lip @ 120mm)
  • 4 Tile Long Sheet = 1550mm long (4 tiles @ 350mm + Front lip @ 30mm + Back lip @ 120mm)
  • 6 Tile Long Sheet = 2250mm long (6 tiles @ 350mm + Front lip @ 30mm + Back lip @ 120mm)

To determine what combination of sheet lengths to use please follow the below calculations:

(Slope length – 0.150m) ÷0.350m = number of tiles required.

Use the tile number to work out which sheet sizes multiply into that number correctly.

Example – The measurement from centre of ridge to centre of gutter = 3.1m
(3.1m – 0.150m) = 2.95m ÷ .350m = 8.42 tiles = 9 tiles worth of sheet.

 To achieve a 9 tile sheet you would combine a 3 tile and a 6 tile.  (Note this would give a total sheet length coverage of 3.3m (once you include lap details of 150mm) so the top sheet would need to be trimmed by 200mm

Note:  Ridge caps have 200mm wings which can be used to bridge small gaps of up to 75mm up at the ridge line.  This can often help to maximise the cover width of your sheet and avoid the need to cut sheets.   

It is also possible to increase the size of the overlap between two sheets to avoid cutting.  This however will reduce the appearance of a run of tiles and needs consideration before fastening.

Please use the below table as a guide to what sheet sizes and quantities are required for different slope lengths.
Measurement from Ridge to Gutter (mm)

              




Cutting Duratile

If one of the sheets in the run requires cutting, insure that this is the top sheet of the run so that the cut edge is covered by a ridge or apron flashing.  For best cutting results use a circular saw with steel cutting blade, a nibbler or plate shears.  We do not advise using disc cutters/grinders as they can damage the galvanised material and often burn the plastic coating which can lead to the coating peeling in the future.  After cutting, clean the sheet edge making sure to remove any shavings which

may rust and could eventually damage the roof.
 

Correct Support For Your Roof Sheet

Duratile needs cross batten support every 700mm (= 1 x support every other tile working up your roof slope).  There must also be supports within 100mm from the ridge and within 100mm from the eaves line.  Always position a batten under each sheet to sheet end lap.  Ideally battens should be a minimum of 50mm x 50mm to allow for the full purchase of our 35mm wood drill screw fixings.

It is very common for the roof to be close boarded with marine ply or OSB board prior to battening and sheeting.  If you do this you will need to lay some vapour barrier down on top of the boarding prior to sheeting the roof.

 

Condensation Issues

Duratile is a single skin steel sheet.  This means that at certain time of the year in certain conditions it may be subject to condenstaion.  We do not offer an anti-condensation sheet in this profile.  To avoid dripping inside the building we advised that you close board the roof as mentioned above orlay insulation board on to of the battens prior to fixing the sheet down.  If you do indent to use insulation board and screw through it when fixing the sheets down then please advvise us of the depth of board

you are using so that we can recommend the most suitable fixing for the application.


Handling
Be careful when handling the metal roof sheets.  The edges of the sheets can be sharp so always wear protective gloves.

When unloading and storing the sheeting, place them on boards or closely spaced bearers a minimum of 150mm from the ground.  If the sheets are to be stored for a prolonged period, they should be kept covered to avoid water sitting between the tightly packed sheets.

Tile effect sheets are made from light gauge steel, care must be taken to avoid bending and denting the sheets during handling.  Lift the sheets one at a time, making sure to lift from the stack vertically rather than dragging as this can scratch the underside coating.

Carry the sheets on their sides to avoid bowing or possible creasing in the middle of the sheet

During installation use crawling boards to spread your weight across the sheets.  Walking directly over the crowns of the corrugations can cause the sheets to dent.



Fixing roof sheets
Sheets runs must be laid from Right to left.  It is important to get your first sheet laid accurately inline with the eave (not the gable) so that your sheets will follow a consistent line that falls into the centre of your gutter.  

If your roof requires 2 or more sheets from eaves to ridge then it is important that your first sheet is laid at the bottom right side of the roof.  Your second sheet will then be laid above it.  You should complete the run from eaves to ridge before starting your next run of sheets.  DO NOT LAY A COMPLETE RUN OF SHEETS FROM RIGHT TO LEFT ALONG THE EAVES LINE AS THIS WILL CAUSE PROBLEMS ON THE OVERLAP DETAIL.   (Remember to follow the rule of laying from eaves to ridge - from righ to left along your roof)

Sheets should be fixed with self tapping drillscrew and neoprene washers to the supports through the valley (low part) of the corrugation. Fixing through the crown can damage the sheet and cause a dent which may later affect water tightness.  Fixing through the valley is the most secure method with the least allowance for movement.  4 fixings should be secured across the width of each sheet on every support (700mm).   

The correct fixings to use:
45mm Woodtek drillscrew – For fixing to timber
25mm Light Section drillscrew – For fixing to light steel up to 2.5mm thick
38mm Heavy Duty drillscrew – For fixing to heavy gauge steel up to 12mm thick

Duratile requires any end laps to be sealed with lapseal mastic (only required if you are using two sheets down the slope).  Side laps do not require lap mastic but need to be stitched with 25mm long self tapping stitcher drillscrews, on the crowns of the corrugation every 350mm. 


Fixing your verge and ridge flashings
Verges and ridges are secured to the crowns of the Duratile sheets.  All flashings are supplies in 2.0m lengths and should overlap the next flashing by 100mm (giving 1.9m cover each).   Use 25mm self tapping stitcher screws to secure flashings to the crown of the Duratile sheets.  Stitcher screws should be used at min 500mm spacing along either wing of a flashing insuring that a fixing goes through the lap of the sheet.

If using a special ridge flashing you may want to use a ridge finial to finish the end on view at the gable.

Foam Fillers
Profiled foam infills can be used to close in the corrugation of the Duratile sheet.   These should be pinned down under the sheet with the main fixings on your last support at the eaves, and pinned down with a stitcher screw between the ridge and sheet whilst fixing the ridge flashing.

If you need to create some airflow under your roof to prevent condensation, we advise not fitting foam fillers.

Last Updated on Tuesday, 12 January 2016 14:14
 
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Hill Place Farm
Turners Hill Road, East Grinstead
West Sussex, RH19 4LX
T: 01342 337171
F: 01342 410560

 

29th August 2012 -

Welcome to www.tileeffectroofing.com.  This site is still under construction and is being added to daily.  If you need any more info........

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ABOUT US

Duratile is the tile effect roof sheet brought to you by Southern Sheeting Supplies based in West Sussex.

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