Durolite® Webglass Plus

Terms & Conditions

Durolite® Webglass Plus Durability


Webglass Plus incorporates vinyl ester resins which offers better resistance to Hydrocarbons or high levels of acid or alkalines than standard Webglass. Webglass Plus carries a 20 year surface erosion warranty.

Sheet Characteristics

The useful life of Natural Lighting products is determined by their ongoing ability to allow sufficient light into the building. The following table gives a guide for the recommended use and the expected useful life based on light transmission. The long-term performance of Durolite products is enhanced by the use of a 100-micron integral gel coat surface rather than a laminated polyester film (Maxilite).

Durability Guide

Product
Performance Requirement
Product Type & Surface Film
Visible Light Transmission of New Clear Sheet
Total Solar Transmission
Expected Useful life as Skylighting
Durolite Webglass™ Plus
Performance Requirement
Same as Durolite but extra heavy woven glass matt allows the product to be used without safety mesh.Resin uses a vinyl esta with excellent chemical resistance.
Product Type & Surface Film
Visible Light Transmission of New Clear Sheet
-
Total Solar Transmission
-
Expected Useful life as Skylighting
20 years
Sheet Characteristics at End of Useful Life
Loss of Original Light Transmission
Surface Coating Condition
Glass Fibre Appearance
Sheet Yellowing
Ongoing Properties
Hail Resistance
Chemical Resistance
-
Surface Coating Condition
Minimal surface degradation, gloss retained
Glass Fibre Appearance
Minimal pattern apparent
Sheet Yellowing
Minimal
Ongoing Properties
The products will remain an effective barrier to the weather for periods well in excess of their useful light transmission
Hail Resistance
Sheet thickness 1.4mm or more will not fracture from 20mm ø hail impact 100km/h
Chemical Resistance
Best surface & sheet resistance to some hydrocarbons (e.g.toluene, petrol,mineral oils) & salt solutions.

Natural Lighting Load Span Table

The following table provides the maximum spans for Maxilite, in all the grades such as clear, HG and FG for each profile and sheet thickness limited by the ultimate limit state capacities given. The load span data is based on the number of fasteners/sheet/purlin given. The load capacities apply to both inward and outward uniformly distributed loads. The table does not cover Natural Lighting Systems intended to support concentrated loads (e.g. foot traffic). Consult Dimond for alternative systems if design consideration is to be given to concentrated load support.

Fastener Design

Dimond Natural Lighting sheets must be fixed with screw fasteners of the same type and length for the matching metal sheeting. The fastener frequency should be specified according to the following table. Weatherlok roofing washers may be used to achieve a seal and to spread wind uplift reaction loads. For roofs with design wind loads close to the maximum values below or above 2.0 kPa, use the matching metal profiled washer and 36Ø EPDM seal. Side lap stitching and pre-drilled oversize holes may be required .

Natural Lighting Systems Load / Span / Fastener Design
Profile
Gauge (mm)
Nominal Sheet Weight (kg)/m²
Max. Internal Span (mm)* - ULS 1.0kPa**
Max. Internal Span (mm)* - ULS 1.5kPa**
Max. Internal Span (mm)* - ULS 2.0kPa**
End Span - Fasteners/sheet/purlin
Internal Span - Fasteners/sheet/purlin
Corrugate Min pitch 8°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1200
Max. Internal Span (mm)* - ULS 1.5kPa**
1000
Max. Internal Span (mm)* - ULS 2.0kPa**
900
End Span - Fasteners/sheet/purlin
5
Internal Span - Fasteners/sheet/purlin
3
Corrugate Min pitch 8°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
1400
Max. Internal Span (mm)* - ULS 1.5kPa**
1200
Max. Internal Span (mm)* - ULS 2.0kPa**
1000
End Span - Fasteners/sheet/purlin
5
Internal Span - Fasteners/sheet/purlin
3
Corrugate Min pitch 8°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
1500
Max. Internal Span (mm)* - ULS 1.5kPa**
1300
Max. Internal Span (mm)* - ULS 2.0kPa**
1200
End Span - Fasteners/sheet/purlin
5
Internal Span - Fasteners/sheet/purlin
3
Veedek/Styleline/Hi Five Min pitch 3°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1400
Max. Internal Span (mm)* - ULS 1.5kPa**
1200
Max. Internal Span (mm)* - ULS 2.0kPa**
1000
End Span - Fasteners/sheet/purlin
4
Internal Span - Fasteners/sheet/purlin
4
Veedek/Styleline/Hi Five Min pitch 3°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
1700
Max. Internal Span (mm)* - ULS 1.5kPa**
1500
Max. Internal Span (mm)* - ULS 2.0kPa**
1200
End Span - Fasteners/sheet/purlin
4
Internal Span - Fasteners/sheet/purlin
4
Veedek/Styleline/Hi Five Min pitch 3°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
1900
Max. Internal Span (mm)* - ULS 1.5kPa**
1700
Max. Internal Span (mm)* - ULS 2.0kPa**
1400
End Span - Fasteners/sheet/purlin
5
Internal Span - Fasteners/sheet/purlin
3
V-Rib Min pitch 4°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1400
Max. Internal Span (mm)* - ULS 1.5kPa**
1200
Max. Internal Span (mm)* - ULS 2.0kPa**
1000
End Span - Fasteners/sheet/purlin
5
Internal Span - Fasteners/sheet/purlin
3
V-Rib Min pitch 4°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
1700
Max. Internal Span (mm)* - ULS 1.5kPa**
1500
Max. Internal Span (mm)* - ULS 2.0kPa**
1200
End Span - Fasteners/sheet/purlin
5
Internal Span - Fasteners/sheet/purlin
3
V-Rib Min pitch 4°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
1900
Max. Internal Span (mm)* - ULS 1.5kPa**
1700
Max. Internal Span (mm)* - ULS 2.0kPa**
1400
End Span - Fasteners/sheet/purlin
5
Internal Span - Fasteners/sheet/purlin
3
LT7 Min pitch 3°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1600
Max. Internal Span (mm)* - ULS 1.5kPa**
14000
Max. Internal Span (mm)* - ULS 2.0kPa**
1300
End Span - Fasteners/sheet/purlin
7
Internal Span - Fasteners/sheet/purlin
4
LT7 Min pitch 3°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
1900
Max. Internal Span (mm)* - ULS 1.5kPa**
1700
Max. Internal Span (mm)* - ULS 2.0kPa**
1500
End Span - Fasteners/sheet/purlin
7
Internal Span - Fasteners/sheet/purlin
4
LT7 Min pitch 3°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
2100
Max. Internal Span (mm)* - ULS 1.5kPa**
1800
Max. Internal Span (mm)* - ULS 2.0kPa**
1700
End Span - Fasteners/sheet/purlin
7
Internal Span - Fasteners/sheet/purlin
4
BB900 Min pitch 3°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1700
Max. Internal Span (mm)* - ULS 1.5kPa**
1400
Max. Internal Span (mm)* - ULS 2.0kPa**
1300
End Span - Fasteners/sheet/purlin
6
Internal Span - Fasteners/sheet/purlin
3
BB900 Min pitch 3°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
2000
Max. Internal Span (mm)* - ULS 1.5kPa**
1700
Max. Internal Span (mm)* - ULS 2.0kPa**
1500
End Span - Fasteners/sheet/purlin
6
Internal Span - Fasteners/sheet/purlin
3
BB900 Min pitch 3°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
2300
Max. Internal Span (mm)* - ULS 1.5kPa**
1900
Max. Internal Span (mm)* - ULS 2.0kPa**
1700
End Span - Fasteners/sheet/purlin
6
Internal Span - Fasteners/sheet/purlin
3
DP955 Min pitch 3°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1400
Max. Internal Span (mm)* - ULS 1.5kPa**
1000
Max. Internal Span (mm)* - ULS 2.0kPa**
750
End Span - Fasteners/sheet/purlin
3
Internal Span - Fasteners/sheet/purlin
3
DP955 Min pitch 3°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
2000
Max. Internal Span (mm)* - ULS 1.5kPa**
1700
Max. Internal Span (mm)* - ULS 2.0kPa**
1500
End Span - Fasteners/sheet/purlin
6
Internal Span - Fasteners/sheet/purlin
3
DP955 Min pitch 3°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
2500
Max. Internal Span (mm)* - ULS 1.5kPa**
1600
Max. Internal Span (mm)* - ULS 2.0kPa**
1200
End Span - Fasteners/sheet/purlin
3
Internal Span - Fasteners/sheet/purlin
3
SS900/Topspan Min pitch 3°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1800
Max. Internal Span (mm)* - ULS 1.5kPa**
1600
Max. Internal Span (mm)* - ULS 2.0kPa**
1400
End Span - Fasteners/sheet/purlin
4
Internal Span - Fasteners/sheet/purlin
4
SS900/Topspan Min pitch 3°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
2000
Max. Internal Span (mm)* - ULS 1.5kPa**
1800
Max. Internal Span (mm)* - ULS 2.0kPa**
1400
End Span - Fasteners/sheet/purlin
4
Internal Span - Fasteners/sheet/purlin
4
SS900/Topspan Min pitch 3°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
2300
Max. Internal Span (mm)* - ULS 1.5kPa**
2000
Max. Internal Span (mm)* - ULS 2.0kPa**
1700
End Span - Fasteners/sheet/purlin
4
Internal Span - Fasteners/sheet/purlin
4
Super Six Min pitch 3°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1800
Max. Internal Span (mm)* - ULS 1.5kPa**
1400
Max. Internal Span (mm)* - ULS 2.0kPa**
1200
End Span - Fasteners/sheet/purlin
4
Internal Span - Fasteners/sheet/purlin
4
Super Six Min pitch 3°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
2000
Max. Internal Span (mm)* - ULS 1.5kPa**
1600
Max. Internal Span (mm)* - ULS 2.0kPa**
1400
End Span - Fasteners/sheet/purlin
4
Internal Span - Fasteners/sheet/purlin
4
Super Six Min pitch 3°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
2300
Max. Internal Span (mm)* - ULS 1.5kPa**
1800
Max. Internal Span (mm)* - ULS 2.0kPa**
1600
End Span - Fasteners/sheet/purlin
4
Internal Span - Fasteners/sheet/purlin
4
Dimondek 400 Min pitch 3°
Gauge (mm)
0.75
Nominal Sheet Weight (kg)/m²
1.9
Max. Internal Span (mm)* - ULS 1.0kPa**
1400
Max. Internal Span (mm)* - ULS 1.5kPa**
1200
Max. Internal Span (mm)* - ULS 2.0kPa**
1000
End Span - Fasteners/sheet/purlin
1 Clip
Internal Span - Fasteners/sheet/purlin
1 Clip
Dimondek 400 Min pitch 3°
Gauge (mm)
0.9
Nominal Sheet Weight (kg)/m²
2.3
Max. Internal Span (mm)* - ULS 1.0kPa**
1600
Max. Internal Span (mm)* - ULS 1.5kPa**
1400
Max. Internal Span (mm)* - ULS 2.0kPa**
1200
End Span - Fasteners/sheet/purlin
1 Clip
Internal Span - Fasteners/sheet/purlin
1 Clip
Dimondek 630*** Min pitch 3°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
900
Max. Internal Span (mm)* - ULS 1.5kPa**
900
Max. Internal Span (mm)* - ULS 2.0kPa**
900
End Span - Fasteners/sheet/purlin
3
Internal Span - Fasteners/sheet/purlin
3
Dimondek 630 ***Min pitch 3°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
900
Max. Internal Span (mm)* - ULS 1.5kPa**
900
Max. Internal Span (mm)* - ULS 2.0kPa**
900
End Span - Fasteners/sheet/purlin
3
Internal Span - Fasteners/sheet/purlin
3
Six Rib Min pitch 4°
Gauge (mm)
1.1
Nominal Sheet Weight (kg)/m²
1.8
Max. Internal Span (mm)* - ULS 1.0kPa**
1200
Max. Internal Span (mm)* - ULS 1.5kPa**
1000
Max. Internal Span (mm)* - ULS 2.0kPa**
900
End Span - Fasteners/sheet/purlin
6
Internal Span - Fasteners/sheet/purlin
6
Six Rib Min pitch 4°
Gauge (mm)
1.4
Nominal Sheet Weight (kg)/m²
2.4
Max. Internal Span (mm)* - ULS 1.0kPa**
1400
Max. Internal Span (mm)* - ULS 1.5kPa**
1200
Max. Internal Span (mm)* - ULS 2.0kPa**
1000
End Span - Fasteners/sheet/purlin
6
Internal Span - Fasteners/sheet/purlin
6
Six Rib Min pitch 4°
Gauge (mm)
1.7
Nominal Sheet Weight (kg)/m²
3.0
Max. Internal Span (mm)* - ULS 1.0kPa**
1500
Max. Internal Span (mm)* - ULS 1.5kPa**
1300
Max. Internal Span (mm)* - ULS 2.0kPa**
1200
End Span - Fasteners/sheet/purlin
6
Internal Span - Fasteners/sheet/purlin
6

* End Span = 0.7 x Internal Span
** ULS = Ultimate Limit State Capacity
*** Span for Dimondek 630 is limited by the side lap fastener to either mid span support or purlin, at centres shown above up to a maximum number of 2 mid span supports.

Note:

  1. The spans given are for internal purlin spacings.
  2. The tabulated data does not apply to single spans. Single spans must be reduced to 0.5 x internal span.
  3. These spans apply where the Natural Lighting sheets are installed with both side edges supported by an adjacent metal roof.
  4. For continuous coverage of two or more Natural Lighting sheets we recommend reducing the spans 0.9 x Internal spans.
  5. U.L.S. = Ultimate Limit State Capacity.

Mid Span Support

Whenever the span capability of the Dimond Natural Lighting product does not match the purlin spacing used for the adjoining metal sheets, a mid span support must be used. The sheets must be fastened to the mid span support in the same manner as they are fastened to the purlins. Mid span supports are required to reduce sheet flutter due to wind loads and are not intended to support concentrated loads.

1⁄2 Sheet Widths Spans



The use of profiled 1⁄2 sheet widths, lapping over the side of the steel sheets, allow the spans of the selected profile Natural Lighting sheet to be increased by up to 40%, while still achieving the same ultimate limit state capacity, before needing mid supports. Half width sheets must have side lap stitching, refer table 2.4M, Section 2.4.1.3.2 of Technical Manual.

Durolite® Webglass Plus Components

The following profiles are available in all Dimond Natural Lighting products. In addition, profiles matching most other metal roofing products may be available.



IMAGE

For more component information see Section 2.4.1.2.2 of Technical Manual

Terms & Conditions

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