Hi All,

For Sky Light or Awning, use Lexan* Twin Wall, Grade Recommended is Lexan* 10mm Thickness Solar Control IR, Light Green in Color

In the 1960s, NASA used Lexan* Brand Polycarbonate for Astronaut helmet assemblies and visors which became known as "bubble helmets", including those used by the Apollo moon astronauts.



Advantages
1) 2 Wall , Better Heat Insulation
2) Lower Cost
3) Reduce 30% Heat
4) 2 Side UV Resistant Coating ( Generally, Polycarbonate is NOT Chemical Resistant. Can be printed as label, example laptop Battery uses Polycarbonate FR Film as Label)
5) Impact Resistance. Virtually Un-Breakble Youtube has many Video on the Impact Test
6) 10 year Warranty - Against Yellowing ( yellow Index Not more than 2, which naked Eyes can see)
- Against Impact ( Drilled Holes Failure not Warrant)
- Against Lost of Light Transmission
7) Light Transmission - More than 65%
8) Coated PolyCarbonate ( Lexan* Own Coating which was Developed in-house)

More Details

http://en.wikipedia.org/wiki/Lexan

http://www.sabic-ip.com/sfs/SFS/en/Product...ntrolsheet.html

Dust or Fungus will grow in the Slot but that can be eliminate if you get a Good Contractor.
Use Anti - Dust tape, which will allow the Water to Vaporize and 'Flow' out through the Special Membrane in the Anti-Dust Tape
It will prevent Water from Sipping in and Grow Fungus

Many Stadium are Built from Multi-Wall Sheet , which also uses the Anti-Dust Tape ( Do a Search for Anti-Dust tape)
Examples :





Material Cost for Lexan* 10mm Thickness Solar Control IR, Light Green in Color is approximately RM 6.80/square feet.
Note That The Structure is more Costlier that the Roofing Material.

To be Sure, Call the manufacturer for a Claim ( Some Manufacturer also claim give 10 years Warranty). Ask them to visit you. You can judge the product by their Services
Give them the Lot No ( Date of Manufacturing or Purchasing Agents for Verification).

Another Option is to use 6 mm Lexan* Solid Sheet. Same Warranty .
6mm will not be break by an Axe & and will not deform from heat ( 3 mm thick Polycarbonate will Wave on hot Days)



This post has been edited by jerryng75: Jan 26 2013, 07:30 PM

Hi,

Lexan Solar Control IR 10 mm thick, would have 20dB on Sound Reduction

Thicker would give you a Lower Sound.

Wall partition uses 2-Wall ( Twin Wall) or 3 Wall which reduce Sound

Solid Sheet Lexan* ( usually 15 mm) is widely use in Oversea Countries ( Europe, America, Japan) as SOUND WALL in the Highway
This give a better view for the Resident Instead of BLANK Walls in Malaysia

Info from the Web shows

Solid Sheet Lexan*, 6 mm 29dB on Sound Reduction
Solid Sheet Lexan*, 8 mm 31dB on Sound Reduction
Solid Sheet Lexan*, 12 mm 34dB on Sound Reduction


What type of Polycarbonate are you using? Solid or Multi Wall

Hi,

It looks very nice , however, you need to design the Structure carefully
Someone once tried to use this type on the cafe beside the Condo Swimming Pool. Less than One Hour after the Installation, it was blown off .
Wind Load is a main concern for this as well.

This post has been edited by jerryng75: Jan 26 2013, 09:45 AM

Multi Wall Sheet is




Solid is like a Glass ( But, Virtually Un-Breakable)

Hi

Everyone need to Survive. More Margin . Hit and Run Business

I wanted to have a Clear Roof in my Car Porch, but Contractor told me Every 3 years need to Change
No Way I Will pay Every 3 years for a Clear Roof

So End up I waited another 2 years before I found this Lexan* Grade

Fading ? You Mean Yellowing?
From the Web site , They mention
' Lexan Thermoclear Plus offers a ten year limited written warranty against discoloration, loss of light transmission and loss of impact strength due to weathering with superior conditions compared to competitive products.'

You will have a few Choice

Lower Cost - Twin Wall - Get 10 mm thick Lexan Solar Control IR , Best in this Class
6 mm Thick one doesn't look Good

Higher Cost . Solid Lexan, 6mm , Un-breakable , even by an Axes
Anything Lower than 6 mm is not advisable due to Waviness during Hot Sunny Day
Paying for Safety here

Glass ?

Get At Least - Laminated Glass ( Tempered Glass )
Glass will have Spontaneous Breaking ( Unless you willing to pay for Heat Soaked Tempered Glass, which High Rise uses)
Once they Break, The Lamination will hold it and not Drop Immediately. so You are Safe
Don't Get Float Glass. Too Dangerous


Critical Note

Polycarbonate is HALF the Weight of a Glass
12 mm Glass Can be Replace by 6mm Lexan SOLID. Which make the Weigh is A Quarter of the Weigh of Glass.
Conclusion is The Structure for Polycarbonate is much Lighter and LOWER Cost

Anyhow,
Workmanship + Structure = 70% of your Payment
Material = Only 30% of your Payment

Hi Ozak,

I think you purchased an Un-Coated Polycarbonate ( Which is NOT Chemical Resistant)
Transparent Plastics allow Light, UV & IR to pass through ( Your Car Dash Board is NOT Transparent, therefore, with UV Retardant, it will not spoils after many years)
However, UV Retardant will not work with Transparent Plastics
UV will Damage all material, even your White Shirt will turn yellow

Your Case is like below Photos right?

Breakage?



Yellowing?




You need to replace that.
Replace with a 10mm Twin-Wall, Better Heat Insulation, More Beautiful & Less Noise compare to 6mm
Advise : 10 mm Lexan Solar Control IR ( Hollow Type)

I'm an User for Lexan* 10mm, Solar Control IR

House is Bright. Not Hot

No worries for 'Lumut' or Water

Please refer to SABIC SFS

Petaling Street
Columbia Hospital , Kota Kamuning
Haven, Ipoh

This post has been edited by jerryng75: Apr 25 2014, 06:01 PM

Tempered Glass = 1 pieces
Laminated = 2 pieces
Laminated Tempered Glass = 2 pieces
Hybrid Laminated = 1 Pieces Float + 1 pieces Laminated

Theoretically When Tempered Glass Breaks, it's not sharp ( Maybe Process not Complete)
It should breaks nto Millions of pieces

I still think 1 pieces Laminate Glass is risky
All the above combination will have the risk of spontaneous Breaking. No Idea When.

For Safety get Laminated Tempered Glass = 2 pieces

Bro

Check out thread

http://forum.lowyat.net/index.php?showtopi...post&p=57851972




This post has been edited by jerryng75: Jan 27 2013, 02:13 PM

Glass Door usually not Installed Directly Under the Sun, Where there is a Prolong Heat & Cold.
That's why there are less easy to break.
My Office Tempered Glass Door Broke twice due to Accidentally Knocked Hard

For Roofing it's a different case

You could go for Tempered Glass. Their Chemical Resistant is the Among Best. Mean that Unless It Break, It will last forever

Setback is It's expensive & Hot

Note that You still have to Clean if ofter & Repair the Silicone to prevent water leaking
Never Skip Maintenance, ya !!



This post has been edited by jerryng75: Jan 27 2013, 05:41 PM

Choose Lexan 10 mm Solar Control IR Twin Wall

Reason : See video below ( Yes price also Cheaper Compare to solid 3 mm)

Now, below show why 6 mm is better than 3 mm For Roofing



This post has been edited by jerryng75: Jan 28 2013, 12:18 PM

Hi ,

Check out this Live demo of Lexan* Solar Control IR



This post has been edited by jerryng75: Feb 20 2013, 01:52 AM

Hi,

I'm not a Contractor

But The Plastics is 25 ~ 30 % of the Total cost They Charged me (Maybe Lower too)

Bro,

do a Gutter.

You can do it yourself if you want to cut cost

During Rain you will know why.

Do a Hinge every 3 feet. Or they will warp and water will flow OUT !!

Bro, when you do yours, go for simplicity.

The Design is more than what you need
But...Your the boss, you decide

Please refer to SABIC SFS

This post has been edited by jerryng75: Apr 25 2014, 05:59 PM

Gutter

The main purpose of a rain gutter is to protect a building's foundation by channeling water away from its base. The gutter also helps to reduce erosion, prevents leaks in basements and crawlspaces, protects painted or stained surfaces by reducing exposure to water and provides a means to collect rainwater for later use.

When it rains, You will have to run through Larger Drop of Water from the roof ( If no gutter)

Erosion( Holes) will appear if no gutter

Hi, Climb up the roof and block all the holes.