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FAQ

What is Laserlite?
Laserlite is a range of profiled roof sheeting products manufactured for Australian conditions. It’s made from Polycarbonate, a material that is light and tough making it easy to install and uniquely suitable for Australian conditions. It’s strength in fact is more than 250 times stronger than glass, this in combination with its ability to block out harmful UV rays (99.9%) make it an ideal choice wherever a safe and lightweight roofing material is required.

What are the current profiles in the Laserlite polycarbonate corrugated sheet (PCCS) range?
Laserlite 2000 has 3 profiles available – corrugated (sometimes called Roma), Greca, & 5-Rib (sometimes called Trimdek or Superdek). Laserlite 3000 has 2 profiles available – corrugated (sometimes called Roma) & Greca.

What are the colours in the Laserlite 2000 range?
Clear, Grey Tint, Bronze Tint, Opal, Cream.

What sizes does Laserlite 2000 come in?
1.8 / 2.4 / 3.0 / 3.6 / 4.2 / 4.8 / 5.4 / 6.0 / 7.2 / 9.0.

What is the Warranty on Laserlite 2000?
“Lifetime Platinum” = 15 years loss of light transmission & 10 year hail damage.

What are the colours in the Laserlite 3000 range?
Platinum, Ice, Gun Metal.

What sizes does Laserlite 3000 come in?
1.8 / 2.4 / 3.0 / 3.6 / 4.2 / 4.8 / 5.4 / 6.0 / 7.2 / 9.0.

What is the warranty on the Laserlite 3000 range?
“Lifetime Platinum” = 15 years loss of light transmission & 10 year hail damage

What are the differences between Laserlite 2000 & 3000?
Laserlite 3000 provides heat reduction properties and has microscopic aluminium particles throughout the sheet that reflect the warming effect of the suns rays from the sheet whilst still letting light through. Laserlite 2000 does not have this feature.

Can I get sheets longer than 9.0m?
No

What is the UV Rating on 2000 and 3000
99.9%

Will Mulford cut Laserlite 2000 and 3000 to size?
Yes – to minimum of 10mm increments – but we charge for the next size standard stock length sheet.

What fixings (screws) are suitable for use with Laserlite?
Must use polycarbonate roofing fixings – these have a domed washer suitable for use with PC sheet. We suggest use of “One-Shot” (OSS) fixings which are self-cutters. OSS cut the oversize expansion hole and centre the screw.

Are sealants compatible with Laserlite?
No – sealants should not be used with laserlite.

How many fixings are required?
Approximately 7 fixings per linear meter of sheet.

What is the sheet width coverage?
Sheet width coverage is 760mm

What is the minimum roof pitch required on all Laserlite sheeting?
To ensure adequate water run off, a minimum of a 5 degree pitch, – or 88mm rise per lineal meter.

What are the maximum purlin spacing for corrugated, greca and 5-Rib profiles
Corrugated: End Span 800mm / Mid Span 1000mm.
Greca & 5-Rib: End Span 900mm / Mid Span 1200mm

What is Noise Stop Tape (Purlin Tape) used for, and where would you install it?
Is used to reduce the cracking and creaking noise caused by the expansion and contraction of Polycarb sheet, its installed on the top side of the purlins and or rafters.

What is the purpose of the Infill Strips, and where would you install them?
At eaves to avoid rain, dust and wind entering under the eaves.

Where would you install Back Channel flashing?
Under a gutter / on the Gutter / on a Facia board – against a flat surface.

What does Back Channel infill strip provide?
Fit the Back Channel infill strip foam into the “C” section of the Back Channel flashing, to absorb moisture and to repel water, whilst allowing expansion in and out of the channel.

Why is Laserlite installed “this side to the sun”
Only one side of the sheet has the co-extruded cap layer to protect against the sun’s harmful rays.                                      

How do I cut the Laserlite sheet?
Cut with shears, a fine toothed hand saw or circular saw with a cut off blade suitable for plastics.

What is the minimum side lap for corrugated, greca and 5-Rib profiles?
1 ½ corrugation for corrugated, and 1 corrugation for greca and 5-Rib.

What is the recommended sheet overhang going into the gutter?
50mm

Why must I have a 10mm oversize expansion hole through the sheet?
To allow for expansion and contraction of the sheets. Sheet lengths over 4.2m should have 12mm expansion hole.

What are the benefits of the One Shot (OSS) fixing screws?
One shot fixing screws come with their own hole saw that cuts an expansion hole as they are drilled in. This means the screw is centered in the hole. OSS can save 50% on installation time as no pre drilling is required. OSS also features a class 4 coating for superior corrosion resistance.

What size hex head driver will I require to fix the screws?
5/16 driver

What is the minimum measurement for sheet end laps?
End Laps should be 150mm for steep roofs and 200mm for a shallow pitch roofs.

What are the recommended fixing spacing’s for corrugated, greca & 5-Rib?
Corrugated and greca: every 2nd crest at end purlin / every 3rd crest at mid purlin
5-Rib: every crest at end purlin / every crest at mid purlin

Can I use Silicone?
No. Silicones are not compatible with PC sheet.

What flashings are available?
Polycarbonate Barge, Ridge & Apron, and metal Back Channel Flashing.

Where do I install them?
Barge: to the edge of the sheet along the side of the structure.
Ridge: to the apex of the structure.
Apron: along the wall or facia above the sheet.
Back Channel: under the gutter.

What colours and sizes are available?
Colours: Clear, Grey Tint, Bronze Tint, Opal, Cream.
Length: Barge, Ridge & Apron – 3.0mt / Back Channel – 3.6mt

What safety procedures should be followed when installing Laserlite?
Use extreme care when working on a roof. Never walk or apply your load directly on the sheet. Consider all safety requirements, particularly when working at heights above 2mt.
Use appropriate personal protective equipment (PPE) such as safety footwear, glasses & gloves. All safety & work practices must comply with the applicable local building and/or work cover codes.