SLE Cladding Limited

8For further information please contact SLE Cladding Ltd. Tel. 01948 666 321. Fax. 01948 66 55 32

ONDULINE MINI PROFILE

Onduline Garden Roof Range

(The complete Onduline leaflet is reproduced below)

The new Onduline Mini Profile sheets have been designed to enhance the aesthetic appeal and roofing performance of garden timber frame buildings. Onduline Mini Profile is made with 24mm corrugations utilising the same proven manufacturing process as used on the traditional Onduline 38mm corrugated sheet. Its low profile makes it ideal for use on sheds, summerhouses, workshops and garages. The new Onduline Mini Profile sheet provides a significant enhanced weathering performance in comparison to traditional shed grade felts and shingles. The Mini Profile is easy to handle and forms a tough, durable roof covering supported by a 10 year weathering guarantee. Onduline Mini Profile sheets provide a maintenance roof, all you need to do is to clear the seasonal leaf fall off to keep pour roof in tip top condition for many years service

MINI PROFILE

Mini Profile sheets enhance the appearance of timber frame buildings by replicating the shadow line of traditional bold roll tiles. Being light in weight they are the ideal roof covering for your Garden Buildings

PRODUCT SPECIFICATION
Dimensions (nominal)	Sheet thickness: 2.6mm
Length 2000mm	Corrugation width 48mm
Width 866mm	Corrugation height: 24mm
Coverwidth 768mm	number of corrugations: 18
Sheet coverage 1.38 sq metres	weight of sheet: 5.83 kg. (3.37kg per m2
Colours, black & green

Accessories
Mini profile nail packs: Each pack contains 80 x 45mm coloured ring shank nails, sufficient for 4 no. sheets Note: (Packs labelled Compact tile also contain 40 smaller nails which are not required to fix mini profile sheets)

Mini profile ridges: Size, length 1,000mm Cover 875mm
Batten Cloaking Size: 1.220 x 0.550m: Cover 1.120m

*Fixing Onduline Mini Profile Sheets*
Onduline Mini Profile is simple to fix, just follow these simple instructions to ensure a long lasting roof covering. Roof Support: The key to good roof installation is getting the roof support right in the first place, so it's well worth taking the time to ensure the roof will provide a sound base for the Mini Profile sheets. First always inspect, repair and reinforce the existing roof structure as required
*Fixing options*
Decked roofs minimum roof slope 10 degrees. Gradient 1 in 6
	Overlaying an existing felted roof deck: (Fig. 1) Check that the roof structure is sound and adequately supported and provides a reasonably flat base. Then check that the thickness of the deck will accept the nominal 25mm penetration of the mini profile nails, if this is the case then proceed to the sheet fixing guide. NOTE: It is not advisable for nail heads to penetrate into the roof space and in this case an additional layer of suitable roof decking be overlaid to provide additional thickness to accept nails, or alternatively screw battens onto the existing felted deck and fix the Mini Profile to the battens as set out in Fig. 2 the sheet fixing guide.

	Laying Mini Profile on Battens: ( Fig. 2) Mark and fix treated timber battens at 450mm centres by either screwing or nailing the battens to the existing deck or roof trusses. Check with your timber supplier to ensure the section of timber batten is sufficient to span the distance between the truss fixing points. At the ridge fix an additional batten to accept the ridge fixings (Fig 10). Once you are satisfied with the support provided to the sheet follow the sheet laying instructions set out in the sheet fixing guide.

	Lined and battened roof (Fig. 3) To enhance the buildings internal environment and the general roof performance we (Onduline) recommend a lined roof. This can be easily created by first fixing treated battens at 600mm centres. Then overlay purlins with either T & G boards, exterior quality plywood, Sterling or OSB roof decking boards. The Mini Profile Sheets are then fixed by nailing through the top of the sheet corrugation and decking into the battens fixed below to accept them as described in the sheet fixing guide below.

Sheet Fixing Guide
Caution: The covering of the roofs can be a hazardous operation. All work must be carried out with due regard to health and safety regulations, as set out in HSG33 (Roof work)

Once the roof support has been correctly set out and fixed, the Onduline Mini Profile sheets are simple to lay by lapping the sheets with 2 corrugation side lap (Fig 4) and a 200mm sheet end lap. (Fig 5). When fixing the sheets with more than one row of sheets, start alternate rows with half a sheet to create a broken bond laying pattern. This is recommended to avoid a 4 ply thickness of material at the corner sheet laps (Fig 6)


At the eaves (Fig 7) allow a maximum of a 50mm sheet overhang. If the decking board edge is damaged, an Onduline batten cloaking flashing can be used to protect the board and greatly improve the aesthetic of the roof. At the verge to the side of the roof fix a treated timber board under the last corrugation of the Mini Profile Sheet to seal the side of the roof. THE ridge sections (Fig 8) are laid with a 125mm side overlap If battens are being used, remember to fix an additional batten to accept ridge fixings (Fig 9) at the abutment of the verge boards and ridge. A final plate should be cut out of plywood to seal the ridge line. Tin snips can be used to trim the ridge section as required (Fig 10)


Cutting the width of sheet: First mark the line to be cut


Cutting the length of the sheet: To cut the sheet up the length



	C Stagger the fixing pattern

GENERAL INFORMATION

Maintenance
To ensure a long life ,the roof should be cleared of leaves and debris and gutter cleaned regularly

Installation
The Onduline Mini Profile Sheet must be laid in accordance with the fixing instructions above.

Technical Note
Onduline Mini Profile sheets are not classified to External SAA fire rating as required in UK Building Regulations for some classes of structure. In these cases they must be fixed on a fully supported roof deck and the sheets coated with a proprietary AA surface paint treatment, applied in accordance with the paint manufacturers instructions.

Condensation

Onduline is resistant to the build up of condensation. However any single thickness of roofing material is at risk of condensation formation during the winter months. Generally, the installation of high and low level ventilation will reduce this problem.

Conditions of use.
Although the colouring process in the manufacture of the Mini Profile sheet is long lasting, as with similar natural roofing materials it is subject to the effects of weathering. The colour can also differ between production batches. The Onduline group will not be responsible for the effects of structural movement related problems.