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Zinc roof

  • 17-01-2014 2:03pm
    #1
    2012paddy2012
    Registered Users, Registered Users 2 Posts: 2,880 ✭✭✭


    Anyone know about these. Have tiled roof leaking occasionally .... Not at correct slope ... Too low .... Roofer suggest lifting velux windows up a foot and coating roof in zinc for reliable leAk free roof..... Any advice? Things to look out for??


Comments

  • #2
    jack of all
    Registered Users, Registered Users 2 Posts: 2,376 ✭✭✭jack of all


    Your roof pitch must be pretty low, below 22.5 degrees? Zinc would certainly sort your problem but it's not a cheap roof option as you will ned a specialist roofer to lay it right. You'll need to remove the existing tiles, battens and sarking felt and sheet the entire roof in plywood, followed by isolating membrane/ thermal fleece (exact build-up is dependant on the manufacturer's spec, type of insulation provided and ventilation requirements) followed by the zinc pans which are folded and seamed over clips which are fixed back to the ply. If well executed a zinc roof can look great but may not be appropriate on some house types. The alternative would be to go for a PVC single skin membrane like
    Sika Trocal or the likes which can have fake "standing seams" bonded on to give the appearance of a traditional sheet metal build-up. Whichever way you go ventilation and insulation will be very important to avoid interstitial condensation later and this is really a job for a good roofer/ flat roof specialist.


  • #3
    2012paddy2012
    Registered Users, Registered Users 2 Posts: 2,880 ✭✭✭2012paddy2012


    jack of all wrote: »
    Your roof pitch must be pretty low, below 22.5 degrees? Zinc would certainly sort your problem but it's not a cheap roof option as you will ned a specialist roofer to lay it right. You'll need to remove the existing tiles, battens and sarking felt and sheet the entire roof in plywood, followed by isolating membrane/ thermal fleece (exact build-up is dependant on the manufacturer's spec, type of insulation provided and ventilation requirements) followed by the zinc pans which are folded and seamed over clips which are fixed back to the ply. If well executed a zinc roof can look great but may not be appropriate on some house types. The alternative would be to go for a PVC single skin membrane like
    Sika Trocal or the likes which can have fake "standing seams" bonded on to give the appearance of a traditional sheet metal build-up. Whichever way you go ventilation and insulation will be very important to avoid interstitial condensation later and this is really a job for a good roofer/ flat roof specialist.



    Thanks I got quote today did 2600 for job very dear to sort a small leak !! Was up there with the tec7 today again ... Have it down to a dribble now!! But still a nusciance .... Thanks for your advice ...
    Paddy ...


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