V8landy Posted December 26, 2009 Report Share Posted December 26, 2009 Looking to convert a flat roof to a pitched, but can can only get 27 Deg of pitch. Is this to low? (clay pantiles) or would I need to use saking board and double underfelt? Quote Link to comment Share on other sites More sharing options...
rjimmer Posted December 26, 2009 Report Share Posted December 26, 2009 Plenty of 22.5 degree pitched roofs still keeping the water out. A good interlocking tile should be weatherproof. Quote Link to comment Share on other sites More sharing options...
V8landy Posted December 26, 2009 Author Report Share Posted December 26, 2009 A good interlocking tile should be weatherproof. Thanks, and also a good underflet (membrain) also helps. Quote Link to comment Share on other sites More sharing options...
Paddy Galore! Posted December 26, 2009 Report Share Posted December 26, 2009 not too shallow, just dont skimp on the felt mate, you can use sarking boards if you like, but it isn't necessary. Quote Link to comment Share on other sites More sharing options...
Pushkin Posted December 26, 2009 Report Share Posted December 26, 2009 Try asking on this forum DIYnot.com They will have roofers or builders who can tell for certain. Roof technology is more complex than most of us give credit for. If you want to use concrete pantiles instead of clay ones, these can go as low as 15 degrees. http://www.sandtoft.com/tiles/our-products...16de857911ec799 If you google "Clay Pantiles" you should get more than enough information to be getting on with. it seems the man made versions are more effective than the original clay ones. Good luck man Pushkin B) Quote Link to comment Share on other sites More sharing options...
scifiden Posted December 26, 2009 Report Share Posted December 26, 2009 Marley & Redland tiles make plenty of pantiles to go down to as low as 15 degree(Marley Modern, Major etc or Reland Stonewold, Renown). If you want the small tile look then have a look at the Gemini tile or Duo-pitch tile. Both work on the interlocking pantile principle but have the look of the small (plain) tile. Quote Link to comment Share on other sites More sharing options...
mysecretlife Posted December 26, 2009 Report Share Posted December 26, 2009 There are pan tiles out there that can be laid down to 10.5 degree. The only thing that really changes is that most tiles will require a greater head lap at lower pitches. Just remember you will need building regulations and to insulate the roof to a reasonable level Quote Link to comment Share on other sites More sharing options...
stuartbrierley Posted December 27, 2009 Report Share Posted December 27, 2009 HI MY SONS A ROOFER NVQ TOP ******** I NO NOTHING ABOUT ROOFING BUT WILL ASK THE QUESTION AND GET A ANSWER IN PLAIN ENGLISH AND POST ASAP Quote Link to comment Share on other sites More sharing options...
stokeshooter Posted December 27, 2009 Report Share Posted December 27, 2009 Looking to convert a flat roof to a pitched, but can can only get 27 Deg of pitch. Is this to low? (clay pantiles) or would I need to use saking board and double underfelt? Most pantile will go on 15 deg pitch thats what they made for low pitches 27 is plenty just drop the head lap Quote Link to comment Share on other sites More sharing options...
stokeshooter Posted December 27, 2009 Report Share Posted December 27, 2009 There are pan tiles out there that can be laid down to 10.5 degree. The only thing that really changes is that most tiles will require a greater head lap at lower pitches. Just remember you will need building regulations and to insulate the roof to a reasonable level I dont know of any that are recomended to 10.5 but im interested in what head lap they would have let us know cheers Kev Quote Link to comment Share on other sites More sharing options...
mysecretlife Posted December 28, 2009 Report Share Posted December 28, 2009 I dont know of any that are recomended to 10.5 but im interested in what head lap they would have let us know cheers Kev Don't much about the details but the tile is called 'CENTURION' I think its manufactured by Forticrete, they state it's the only tile that can be be laid down to 10 degree. Hope thats of some use to you. Quote Link to comment Share on other sites More sharing options...
al4x Posted December 29, 2009 Report Share Posted December 29, 2009 V8 have a look for manufacturers websites, most have the detail on that will tell you and that will be acceptable to building regs as all they look for is manufacturers info. I've just put on mine a 22.5 degree slate roof that apparently you can't do if you listen to most people Did it as per the manufacturers spec with slates you just increase the headlap and thats about it. I had to do it because planning were very funny with mine about how high it was and this was the minimum pitch we could go to and still have normal height walls! One thing I've done that I'd recommend is decking the roof with celotex if you want a vaulted ceiling its a really good way of insulating and getting a really good U value without having to use too much Insulation Quote Link to comment Share on other sites More sharing options...
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