Page 3 of 3 FirstFirst 123
Results 31 to 33 of 33
  1. 30th March 2008, 01:46 PM #31
    russall
    russall is offline Intermediate Member
    Join Date
    Aug 2007
    Location
    Brisbane
    Posts
    35

    Default

    Excuse the hijacking...

    I'm in debate on weather or not to use Poly or Colourbond...

    I'm leaning towards the colourbond but am wondering how much heavier it is than poly? The reason I ask is I have run a beam over a 4m span which is boarderline as far as the span tables go. It would be fine if it was a continuous span, but this beam is a single span....
    Reply With Quote Reply With Quote
  2. 30th March 2008, 07:39 PM #32
    Barry_White's Avatar
    Barry_White
    Barry_White is offline Deceased
    Join Date
    Oct 2003
    Location
    Kentucky NSW near Tamworth, Australia
    Age
    86
    Posts
    1,067

    Default

    Quote Originally Posted by russall View Post
    Excuse the hijacking...

    I'm in debate on weather or not to use Poly or Colourbond...

    I'm leaning towards the colourbond but am wondering how much heavier it is than poly? The reason I ask is I have run a beam over a 4m span which is boarderline as far as the span tables go. It would be fine if it was a continuous span, but this beam is a single span....
    Russall

    There wouldn't be a significant difference in the weight from Poly to Colorbond to make that big a difference on a dead load. The most important load is the live load which come from the uplift from the wind blowing across the roof surface. I think you would be quite safe with the Colorbond.
    Reply With Quote Reply With Quote
  3. 30th March 2008, 08:29 PM #33
    autogenous's Avatar
    autogenous
    autogenous is offline Senior Member
    Join Date
    Feb 2008
    Location
    Aust
    Posts
    192

    Default

    http://www.eurocell.co.uk/conservatory.html

    Australia can be a bit hot for polycarbonate in large enclosed areas depending where you live.
    c2=a2+b2;
    When buildings made with lime are subjected to small movements thay are more likely to develop many fine cracks than the individual large cracks which occur in stiffer cement-bound buildings. Water penetration can dissolve the 'free' lime and transport it. As the water evaporates, this lime is deposited and begins to heal the cracks. This process is called autogenous healing.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Similar Threads

  1. Colorbond or PVC downpipes??.... Help!
    By kaliani in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etc
    Replies: 16
    Last Post: 21st May 2007, 04:38 PM
  2. Height of Pergola
    By Loki429 in forum PERGOAS, GAZEBOS, STROMBELLAS & ROTUNDAS
    Replies: 3
    Last Post: 13th January 2007, 04:10 AM
  3. pergola roof over tile house roof
    By Lbudgie in forum PERGOAS, GAZEBOS, STROMBELLAS & ROTUNDAS
    Replies: 3
    Last Post: 24th March 2006, 05:58 PM

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules