63

The contents of ALL the scope and calculation charts have to be considered indicative. It is the responsibility of the designer and / or of the user to proceed with the individual structural calculations and determine the specific planning applications of the package of couverture. In the multiplicity of the product that are present in the various documentation on the web, Alubel SpA cannot guarantee that the data and the exposed information’s are the most updated. It is the customer’s responsibility to contact our staff in order to obtain the latest version available.Alubel SpA reserves the right to update and modify the contents of this catalog at any time without prior notice. The information’s and the data contained in the technical data sheets, in the product specifications, in the product de-scriptions, in the brochures and in the advertising material have an indicative nature and become the binding content of the contract only after express written consent from us.

204

Fibrall

Fibrall sheet

Alublok fixing

Old fixing

Fiber cement sheet

Fibrall is a quick and economical fibre cement roof refurbishment system. It is a metal sheet fabricated in large sizes perfectly adapting to euro 177/51 fibre cement sheets.

Patented system

FeaturesProfile height 63 mm

Width 923 mm

Effective width 885 mm

Maximum length 12000 mm

Minimum slope 10 %

Material prepainted steel, prepainted aluminium, raw aluminium, aluzinc

Recommended use re-roofing of old asbestos cement roofs

Advantages

Innovative profileFixing to existing structure

MicroventilationOperating cost reduction

Large-size sheetsExcellent treadability on the sheets during installation

205

Fibrall

923

177

44

885

63

Sheets weight

Indicative weight of Fibrall sheets [kg/m2]sheet thickness [mm] aluminium steel

0,4 - 4,38

0,5 - 5,47

0,6 2,23 6,56

0,7 2,60 7,66

0,8 2,98 8,75

1,0 3,72 10,94

206

Fibrall

923

177

44

885

63

Steel - Permitted uniform load [kg/m2] on 4 supports* i [m] 1,00 1,25 1,50 1,75 2,00

s [mm] σperm ƒperm σperm ƒperm σperm ƒperm σperm ƒperm σperm ƒperm

0,5 864 2631 552 1347 384 780 281 491 216 329

0,6 1037 3159 664 1617 461 936 339 589 259 395

0,7 1211 3685 774 1887 538 1091 395 687 302 460

0,8 1384 4212 885 2156 614 1247 451 785 345 526

*(it is calculated in the dual hypothesis of σperm.= 6,5 kN/cm2 and of ƒperm. = i/200)

Aluminium - Permitted uniform load [kg/m2] on 4 supports* i [m] 1,00 1,25 1,50 1,75 2,00 2,25 2,75

s [mm] σperm ƒperm σperm ƒperm σperm ƒperm σperm ƒperm σperm ƒperm σperm ƒperm σperm ƒperm

0,6 536 1173 343 601 238 348 175 218 134 146 106 103 86 75

0,7 625 1369 400 701 278 406 204 255 156 171 123 120 100 87

0,8 714 1565 457 801 317 464 233 291 178 196 141 137 114 100

Permitted load capacities

*(it is calculated in the dual hypothesis of σperm. = 1.400 kg/cm2 and of ƒperm. = i/200)

The contents of this calculation table are to be considered approximate and purely indicative. The structural calculation is the task of the designer and/or user in each single case that also has to determine the application design specifications for the roofing in question.

207

Fibrall

S

Ri

A B

A = min 260 mm; B = min 100 mm

Uniform curvature by notching

Uniform curvature by notchingS max sheet length

Ri aluminium other materials

3 m max 4 m max 4 m

from 3 to 4 m max 5 m max 5 m

from 4 to 6 m max 6 m max 6 m

from 6 to 7 m max 8 m max 8 m*

* non standard toolings

The images are for illustrative purposes only.

208

Fibrall

A B

S

P

Notching in the middle

Notching in the middleS max sheet length

P aluminium other materials

from 6 to 12% max 8 m max 8 m

from 12 to 15% max 8 m max 8 m

from 15 to 20% max 8 m max 8 m

from 20 to 25% max 8 m max 8 m

The images are for illustrative purposes only.

Sheet curved only in the centre to form the ridge and the joining of two pitches (achieved by means of a set of impressions in the middle of the sheet).The length of the straight segments A and B varies from a minimum of 260 mm to a maximum of 4000 mm.

209

Fibrall

min 300min 300

min 300

Accessories

Notched ridge sheet

Minimum length: 900 mm

Translucent fiberglass sheet

Under/over corruga-tion seal

In closed cell polyethylene foam Thickness: 10x30Length: 2000 mm

Flashing systemDevelopments: 1500, 1250, 1000, 750, 625, 500, 417, 333, 312, 250, 200, 166, 150, 125 mmRecommended maximum length: 6 m

The images are for illustrative purposes only.

210

FibrallInstallation examples

2. Laying of the Fibrall sheets on the old roof. Laying opeation can be made while the workers walk on the new sheet with an increasing safety on the construction site.

1. Applying the Ecofix fixative to prevent dispersion of the asbestos cement fibres.

4. Joining the pitches with the curved ridge.

3. Fixing the Eteral sheet on the old roofing with Alublok fixings without removing the old ones.

211

FibrallInstallation examplesIdeal cover system for Y beam structures, with fixing on the low corrugation.

New Fibrall sheet

Alublok fixing

Asbestos cement sheet

front section

longitudinal section

212

FibrallFixing requirements

Band Fstrong Strong fixing

Band Fmed Average fixing

Band Fmin Minimum fixing

Ridge cap line

Eaves line

span

The support base of Alubel products on the purlins must not be lower than 40 mm for the metal supports and 50 mm for the wooden supports. For what concerns the wheelbase of the supports, follow the scope charts related to each Alubel’s products. Regarding the walkability, we recommend to not exceed the wheelbase of 1 m of support. Before starting the assembly operations of the product it is advisable to lay a wire parallel to the gutter line or converse, in order to obtain a perfect square of the covering. The number of fixing points is defined by various factors such as, for example: • sheet length• the climatic zone• mechanical features of fixing system• the position of the sheet on the covering (area)• the slopeAs shown in the table below, areas are identified on the roof according to the level of risk due to wind action.

213

FibrallFixing requirements

The designer must previously effectuate the verification of the number of fasteners. Ap-proximately, we briefly illustrate a fixing scheme normally used on Alubel roofing systems. We remind you that the number of fixings changes in relation to the span of the substruc-ture support. It is advisable to check that even the purlins, in particular those relating to the Fstrong and Fmed bands, are more anchored to the structure. In the case of structures without floor slabs and not walled in areas particularly subject to strong winds, it is nec-essary to increase the number of fixings, also included in the Fmin band.However, Alubel declines all responsibility for incorrect installation of its products. It is the responsibility of the designer and / or user to proceed with the individual use cases and to determine the specific planning applications of the package of couverture.

span ≤ 1,4 m

span ≤ 1,4 m

span ≤ 1,4 m

span≥ 1,4 m

span≥ 1,4 m

span≥ 1,4 m

Min

imum

fixi

ng

Aver

age

fixin

gSt

rong

fixi

ng

214

Fibrall

Packaging with wooden supports and polyester surface covering cloth. Alubel SpA reserves the right to produce packages with weight up to 2.000 kg; in case of specific needs, please refer to our technical / commercial office.

An example of special packaging consists in the insertion of the plates on specific metal tanks. Alubel SpA reserves the right to produce packageswith weight up to 2.000 kg; in case of specific needs, please refer to our technical / commercial office.

* for feasibility, types and costs refer to our technical / commercial officeThe images are for illustrative purposes only.

Example of standard packaging

Example of special packaging (on request)*

215

Fibrall

30 cm

25 cm

20 cm

25° 46%

17° 30%

11° 20%

6° 10%9° 15%

15/0

7/21

Overlapping values