Rooflights
Steadmans offer a range of factory assembled in-plane rooflights to match the dimensions of AS35 panels (see table 10). Energysaver triple skin rooflights give a U-value of 1.9W/m²K* and consist of two skins of GRP with a central membrane, hardpak spacers and foam end pieces. Double skin rooflights are available if a lower thermal performance is acceptable. Each rooflight has a metal underlap strip built into the crown of the male edge which enables the rooflights to be stitched with standard screws.
Rooflights can be supplied to meet project requirements for light transmission, durability, non-fragility rating, fire resistance and thermal performance: contact Steadmans’ sales office for details.
| Table 10: Rooflights |
| Property |
Units |
Value |
| Minimum slope |
° |
6 |
| Maximum length |
m |
7 |
| Width (centre-centre) |
mm |
1000 |
| Thickness |
mm |
40, 60, 80, 100 |
| U-value |
W/m²K |
|
| Standard |
|
3.0* |
| Energysaver |
|
1.9* |
| Low U-value Energysaver |
|
1.0–1.9* |
* Figures supplied by Brett Martin Daylight Systems Ltd.
Other manufacturer’s figures may vary. |
Gutters
Steadmans manufacture and supply a range of gutters to match AS35 panels. Gutters are produced from a variety of materials including pre-galvanised steel (to BS EN 10143:2006) and pre-coated steel, either painted or PVC-coated on one or both sides: aluminium can be supplied to special order. Complete gutter systems and accessories can be manufactured to specification, up to 10m long and 3mm thick: contact Steadmans’ sales office for details of sizing.
Flashings
Steadmans manufacture a range of flashings to match AS35 panels in plastisol leathergrain, polyester, Nova, Scintilla, galvanised, or PVDF finishes. Flashings can be supplied in lengths up to 6m in traditional profiles, or can be shaped to meet special customer requirements.
Sealants
Steadmans supply a range of NFRC Class A butyl sealants, profile foam fillers and expanding foams to enable AS35 panels to be sealed to each other and to other building components, so avoiding thermal bridging and air leakage. |
