How much do you overlap polycarbonate sheets?

Each sheet should extend past the support (and screws) by a minimum of 100 mm, this will effective give a minimum 200 mm overlap as pictured below. in some cases it may be advisable to use a sealing strip to ensure that no leaking occurs.

How much should corrugated sheets overlap?

Always allow for an overhang of at least 60-70mm so that water can run off without coming into contact with rafters or purlins, which can lead to damp and structural weakness.

What is Superdek?

Endowed with strength and easy to use, Stratco Superdek® is a high tensile roof and wall sheeting that is widely accepted by both professional builders and people improving their homes. Its 28mm rib height allows for long spans and delivers outstanding water carrying ability.

What thickness polycarbonate should I use?

If you’re using polycarbonate, we recommend a minimum thickness of 3mm for applications such as replacing shed windows to provide adequate security. If you’re replacing or installing greenhouse panes, you may want to opt for 4mm instead.

How much do you overlap on box profile roofing?

These ridge caps should be laid against the prevailing wind, overlapping one another by at least 150mm. Stitching screws should be placed at the top of each profile covered, along with ridge filler for an extra weathertight seal, which will also keep out birds and other pests.

Do I need closure strips for polycarbonate roofing?

Closure strips enhance the appearance of your polycarbonate or PVC panel project. Providing weather tightness, plastic or foam closure strips are recommended for sealing the opening created where the corrugated sheet meets flat surfaces at flashing, curbs, etc.

Is TrIMdEk the same as Superdek?

Also known as: Trimclad, Superdek and Monoclad COLORBOND® steel Trimdek Lysaght roofing sheets are used on roofs with a minimum of 2 degree of fall or greater. It is screw down metal deck roofing iron, which makes it very easy to install. These roofing sheets are a cost effective alternative to Klip-Lok roofing sheets.

What is the profile of TrIMdEk?

TrIMdEk profile is pierce-fixed to timber or steel supports. This means that fastener screws pass through the sheeting. you can place screws for LySAGhT TrIMdEk through the crests or in the pans. To maximise watertightness, always place roof screws through the crests.

Can you use silicone sealant on polycarbonate?

Clear silicone adhesive will bond and seal virtually everything to anything in almost all conditions, even underwater or in the rain. The Polycarbonate stores adhesive is perfect to seal your roof. It provides a watertight and flexible seal to your polycarbonate sheets.

Should I seal the ends of polycarbonate sheets?

It is essential that you use Sheet Closures on your Polycarbonate Rood as it forms a weather proof seal to the end of the sheets preventing Water Ingress. Sheet Closures should be used at the lower ends (nearest the gutter) and can also be used for the top end if required.

How far can you span a purlin?

A four-inch purlin can span 12 feet. A six-inch purlin can span 18 feet. An eight-inch purlin can span 25 feet. A ten-inch purlin can span 30 feet.

How do you overlap box profile roofing?

Laying Box Profile Sheets Always overlap each sheet by at least one corrugation (or “side lap”), or more for added water resistance.

How do I use trimdek® profile?

TRIMDEK® profile is pierce-fixed to timber or steel supports. This means that fastener screws pass through the sheeting. You can place screws for TRIMDEK® cladding through the crests or in the pans. To maximise watertightness, always place roof screws through the crests. For walling, you may use either crest- or pan-fixing.

What are the cut-out dimensions of trimdek® ribs?

TRIMDEK® PROFILE Figure 1 displays pre-profiled cut-out dimensions. Rib cut-outs are typical of standard Lysaght TRIMDEK® ribs. Sheet sizes can be ordered in increments of 10mm from 200mm up to 600mm in width. Sheet sizes less than 200mm are available on request.

What is trimdek cladding?

Related Products LYSAGHT TRIMDEK® is a versatile roof and wall cladding featuring bold, trapezoidal ribs and subtle fluting in the pans. Ideal for commercial, industrial and residential buildings. It can be used with the LYSAGHT TRIM-KLIP® end and expansion joint system.

What pitch can you use trimdek on?

MINIMUM ROOF PITCH Long lengths and a special anti-capillary groove in the side-lap allows you to use TRIMDEK® cladding on roof pitches as low as 2° (1 in 30).