Slate roof, what to do about lack of Headlap

[measuretwice12]

My 5 year old new build house has issue with poor headlap and tiles have been falling off the roof in high winds. I have had an independent survey done, which recommended replacing the entire roof cover due to the poor headlap and general issues with workmanship, numerous lifted and cracked tiles were found. The warranty provider (not NHBC), are not willing to replace the roof as they based policy wording are NOT required to rectify the defect as long as it is possible to provide a lasting and effective repair of the damage. The headlap on the roof is 35- 40mm on average and down to about 17mm in some areas (headlap should be minimum 75mm for the pitch). I would really like to hear the forums opinion on what other solutions are available to achieve a lasting and effective repair that does not involve replacing the entire roof at great cost.

 

[jj4091]

Do you have home insurance that provides legal cover, it sounds to me like you need legal advice as well as from a profssional roofer which I'm sorry but I am not.

 

[robinbanks]

Have you already posted about this or is there a second person on th forum with the same issue?

Either way, it does indeed sound like you need legal advice on how the wording of your policy does/n't apply to your situation

I can't think of any remedies for the problem described other than re laying the roof; as I said in the other thread, it's bizarre that it has come about because headlap is dictated by slate holing and that is usually consistent so roofers can't really get it wrong. If holing is inconsistent it shows up when laying the slates on the consistently spaced battens because the slates don't sit properly. If the battens have been laid all over the shop and the slates holed to them on the fly it can cause these issues but it would have to be a really incompetent nitwit that does that

 

[measuretwice12]

I really don't know how the roofer managed to do this, they obviously got the batten spacing completely wrong. The roof was even inspected by the warranty provider and building control. I am now waiting to hear back to see what solution is recommended by the warranty provider, which will probably take some time. I will consider getting legal help, will see what solution they suggest, but from what you are saying there does not appear to be another solution.