You gave Ten years on every thing , WHY, and how you gonna back this up , industry standard is one year on every thing ,this is considered reasonable by the courts, unless you get a manufacturer to back you up with their product guarantees , ie some render manufacturers will offer their ten year guarantee on products but you must be an approved/accredited applicator/installer , same as with my sovereign dpc/tanking guarantees i am able to write these up my self offering up to thirty years on some applications, but this is backed up with company insurance (which you pay a fee percentage on the invoice total) so if i no longer trade the house holder/clent still has some come back whether it's product failure or operator error