jayjayranger Posted March 11, 2008 Report Share Posted March 11, 2008 you can buy diy kits of spray foam still expensive 800 pounds for the large 300 for small come in gas bottle shape cannisters A and B witch you mix and spray where you like Link to comment Share on other sites More sharing options...
Gary Stacey Posted March 12, 2008 Report Share Posted March 12, 2008 Chris Have a look at Scewfix (airtec double insulation) complies with building regs when installed to directions, equivilent to 55mm polystyrene, not used it. Maybe others can advise on its suitability. I have used this on the roof sections of my barge. I trapped it inbetween the box section roof beams and the battens to give an airgap above and below as per the instructions. Seems to work rally well but needs sealing completely as per a vapour barrier to prevent warm air coming into contact with the steelwork. So far I have had no problems with condensation - During a particularly cold period one time I removed some of my cladding, peeled back the airtec to find that the steelwork behind was dry as a bone. The main advantage of this stuff i would say is its cost and the fact that you can get to the steelwork if you want it is also very easy to install overhead. Main disadvantage is the need to seal it completely but for the roof this did not prove to be too difficult. Gary Link to comment Share on other sites More sharing options...
colin loach Posted March 12, 2008 Report Share Posted March 12, 2008 Gary I need to put something on my metal door and roof hatch because of condensation, do you think airtic would if I sandwiched between the door and plywood. Link to comment Share on other sites More sharing options...
wonderdust Posted March 12, 2008 Report Share Posted March 12, 2008 you can buy diy kits of spray foam still expensive 800 pounds for the large 300 for small come in gas bottle shape cannisters A and B witch you mix and spray where you like This is the one we use at work around £400 for large and £200 for small fire rated as well.Hardens in seconds and trims easily! click Link to comment Share on other sites More sharing options...
blackrose Posted March 13, 2008 Report Share Posted March 13, 2008 Chris Have a look at Scewfix (airtec double insulation) complies with building regs when installed to directions, equivilent to 55mm polystyrene, not used it. Maybe others can advise on its suitability. Tescos are doing 7 or 8m rolls of something which looks similar to this for about £25. It may be something completely different - to me it just looks like silver bubblewrap! Link to comment Share on other sites More sharing options...
NBMike Posted March 13, 2008 Report Share Posted March 13, 2008 A building surveyor I know recommended this to me. I think its expensive. Don't know if it could be used on a NB. I'm waiting for a reply from them http://www.ybsinsulation.com/superquilt.htm Link to comment Share on other sites More sharing options...
Gary Stacey Posted March 13, 2008 Report Share Posted March 13, 2008 Gary I need to put something on my metal door and roof hatch because of condensation, do you think airtic would if I sandwiched between the door and plywood. It might work but ideally you need to leave an air gap either side of the airtec. Gary Link to comment Share on other sites More sharing options...
colin loach Posted March 13, 2008 Report Share Posted March 13, 2008 Gary have you got any suggestions Link to comment Share on other sites More sharing options...
Gary Stacey Posted March 14, 2008 Report Share Posted March 14, 2008 I wouldnt use airtec foor a door as you will end up with a very thick door in order to get the correct airgap either side of the airtec. I used just old capet/underlay between the wood and the steel. i sealed the edges of the woood and this seems to work ok with no condensation problemshope this helpsGary Tescos are doing 7 or 8m rolls of something which looks similar to this for about £25. It may be something completely different - to me it just looks like silver bubblewrap!Thats exactly what airtec is like! Hard to believe its insulating qualities are equivilant to 50 mil or so of polystyrene, but it is. There is a test of the stuff somewhere on the web which I think was mentioned somewhere elese on this forumGaryThis is the one we use at work around £400 for large and £200 for small fire rated as well.Hardens in seconds and trims easily!click Is this link correct? all I get is a fiberglass products company?GaryA building surveyor I know recommended this to me. I think its expensive. Don't know if it could be used on a NB. I'm waiting for a reply from themhttp://www.ybsinsulation.com/superquilt.htm This looks a lot like thinsulate and maybe cheaper?Gary Link to comment Share on other sites More sharing options...
colin loach Posted March 14, 2008 Report Share Posted March 14, 2008 Thanks for that Gary I will let you know how I get on. Link to comment Share on other sites More sharing options...
colin loach Posted March 19, 2008 Report Share Posted March 19, 2008 I wouldnt use airtec foor a door as you will end up with a very thick door in order to get the correct airgap either side of the airtec. I used just old capet/underlay between the wood and the steel. i sealed the edges of the woood and this seems to work ok with no condensation problemshope this helpsGaryThats exactly what airtec is like! Hard to believe its insulating qualities are equivilant to 50 mil or so of polystyrene, but it is. There is a test of the stuff somewhere on the web which I think was mentioned somewhere elese on this forumGaryIs this link correct? all I get is a fiberglass products company?GaryThis looks a lot like thinsulate and maybe cheaper?Gary Gary how did you fix the wood to the door and the roof hatch. I have been looking at some other doors and I can't see any sign of screws from the outside. Thanks Colin. Link to comment Share on other sites More sharing options...
drunkensailor Posted March 19, 2008 Report Share Posted March 19, 2008 Chris Have a look at Scewfix (airtec double insulation) complies with building regs when installed to directions, equivilent to 55mm polystyrene, not used it. Maybe others can advise on its suitability. This stuff is the same thing as Thermawrap. It's the one you can buy in Tesco for £25. Focus is doing it for £16.99. If you know someone who is retired, they can get 10% off with an over 60's card. Link to comment Share on other sites More sharing options...
blackrose Posted March 20, 2008 Report Share Posted March 20, 2008 This stuff is the same thing as Thermawrap. It's the one you can buy in Tesco for £25. Focus is doing it for £16.99. If you know someone who is retired, they can get 10% off with an over 60's card. Tescos have just reduced it to £12.50! Link to comment Share on other sites More sharing options...
Gary Stacey Posted March 25, 2008 Report Share Posted March 25, 2008 (edited) Gary how did you fix the wood to the door and the roof hatch. I have been looking at some other doors and I can't see any sign of screws from the outside. Thanks Colin. Sorry for the delay in responding Colin I have been away for a few days. My hatches are edged in box section so I just drilled iin from the sides to hold the wood. I see no reason why you cannot drill through the steel face of the doors/hatches and use coutersunk screws so you can fill and paint to leave no trace! I have seen this done on a number of other boats! Gary Edited March 25, 2008 by Gary Stacey Link to comment Share on other sites More sharing options...
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