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Prof

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    Ex JLR and Regular soldier

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  1. Prof

    Prof

    Thank you for your comments and advice. I will discuss this with the roofer and see what he is prepared to do. If he will do nothing, I think that I will at least have to get him to write me a letter stating that he is aware of a problem and is and will accept responsibility in the future to rectify any damage occurring from this perceived problem. Those are my immediate thoughts, but no doubt I will have to refine them. Being an old fellow now makes me less capable to handle these things. I will let you know what transpires, and meanwhile if you have any other advice or thoughts please let me know. Regards to you all. Prof.
  2. Prof

    Prof

    Thankyou all for your comments. I really hope that moisture is not the problem. I really cannot see how moisture could get into that top area, as it is sealed to the GRP. how do I check this is happening and how can I approach the roofer ? If he refuses to accept the photographic evidence, what is my next option, who can I consult if he refuses to do anything about this? I will check next time we have frost and see if it is an optical illusion, but on close inspection by magnifying the pics, there really seems to be hollows around the screw sites and also every screw hole is visible because of the cold effect. The screws may well be contracting, this was my first thought, but if they are, what will need to be done to stop this happening, remove every screw and put new ones with insulation around them and then have the existing GRP covered over with another layer of GRP? I will attempt to download the photos, but I am not very good at this sort of thing and it may not happen until I see one of my children!!
  3. Prof

    Prof

    Thankyou all for your comments. I really hope that moisture is not the problem. I really cannot see how moisture could get into that top area, as it is sealed to the GRP. how do I check this is happening and how can I approach the roofer ? If he refuses to accept the photographic evidence, what is my next option, who can I consult if he refuses to do anything about this? I will check next time we have frost and see if it is an optical illusion, but on close inspection by magnifying the pics, there really seems to be hollows around the screw sites and also every screw hole is visible because of the cold effect. The screws may well be contracting, this was my first thought, but if they are, what will need to be done to stop this happening, remove every screw and put new ones with insulation around them and then have the existing GRP covered over with another layer of GRP? I will attempt to download the photos, but I am not very good at this sort of thing and it may not happen until I see one of my children!!
  4. Prof

    Prof

    Hi Steamy Tea! I do not know the thickness, but it is quoted as heavy duty GRP. with a high performance polyester top coat The screws are holding -from the bottom12mm plywood sub deck. Vapour control barrier, 120mm foil backed Celotex PIR insulation board18mm T&G smart ply screwed to existing joists .
  5. Prof

    Prof

    Hi! I have a couple of projects lined up for this year and I will ask for advice on one of these soon. First though is my request for advice about my 'Warm' flat roof that was installed last year in the summer. Last week we had frost for the first time this year, and when I looked out of my bedroom window I could see every screw hole outlined in the frost, and upon closer inspection, I could see that each screw site beneath the GRP waterproof covering had sunk by about 2 to 3 mm. As the sun slowly heated the roof and water started to form, these dips became full of water and then eventually the warming of the screws and their expansion (I Assume), returned the GRP to its normal evenness and no visible signs of the screws. It is frosty again today and the same thing has happened. I am very worried about all of this, as to my thinking, if this happens regularly with cold weather, and possibly the reverse happening in the summer, every screw hole site will finally break down the GRP which is not designed to move like this and will eventually split and allow water through each hole. I have told the roofer about this, but he said that he has never heard of this sort of thing happening , I think that he just used long metal screws, but will not know for sure until I see him. I would be grateful for any advice as to how I should handle this situation. Prof.
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