| Author | Message | ||
     Blue_sky_roofing (Blue_sky_roofing) Member Username: Blue_sky_roofing Post Number: 28 Registered: 05-2010 |
Was talking to a contractor friend last night. He had a job where a shed dormer roof needed replaced. Found out that the WHOLE thing was I&W'd over sheeting boards. He ended up taking a sawzall down between each rafter and then rolling everything up together in 2' wide rolls. 'The roofing Apocalypse is a coming'! | ||
| Bud (Bud) New member Username: Bud Post Number: 7 Registered: 02-2010 |
To the first question, no nothing under it be decking. To the next point, yes you will be replacing the deck when it's time for the next roof. A much abused product but thanks to code a necessary evil. Ventilation and Insulation are the answers but what do we know we are just roofers. I have a line in my proposal/contract that states that should I find I&W, it will require replacement of the decking at an additional cost, period, I will not waste my time trying to clean it up and go over it. Jury is out on the use of a 'divorcing' membrane, I agree with the concept and have done this, I also find that I cant work on or over the stuff when it gets hot with out damaging it...so paper goes over it. Remember as well that not all products are created equally, some I&W is inferior and will only work to satisfy code...you get what you pay for. | ||
| Blue_sky_roofing (Blue_sky_roofing) New member Username: Blue_sky_roofing Post Number: 3 Registered: 05-2010 |
Baby! You hit the nail on the head for the next biggest roofing calamity to come on the scene in the following years. Roofers are going to be faced with the realization of having to rip off the first row of plywood because of this $$$$$$!! Whenever I HAVE to use I&W, I ALWAYS put a layer of 15# felt over it to act as a divorcing material between the I&W and shingles. These idiots that come up with the building codes need to spend a little time out in the real world. I&W Shield is one of the most 'abused' products on the market. If you have to rely on I&W to keep the water out of your house, then there is something wrong with your '1st line of defense', or ventilation system. I&W is not full-proof. I've seen it 'fail' on more than one occasion, - it does not seal around every single nail penetration. | ||
| S RECZKOW |
PAST FEW YEARS, I'VE BEEN NOTICING THAT WHEN WE HAVE TO STRIP A ROOF THAT WAS DONE IN THE PAST FEW YEARS WITH CERTAIN ICE SHIELD MEMBRANES, THE HEADLAP OF THE SHINGLE IS FUSED TO THE MEMBRANE. MAKING IT IMPOSSIBLE TO CREATE A SMOOTH CLEAN SURFACE TO INSTALL NEW ROOF SHINGLE. ANYONE ELSE NOTICE THIS PROBLEM? | ||
| Anonymous |
why not lay felt down first then a layer of membrane then a layer of felt? Won't the membrane still be effective but nothing sticks to it........... |
