And each jumper should at 2-4 cm overhanging twig on which it rests. Calculation of vertical jumpers on the same principle as in the calculation of the required length of reinforcement for slab foundations.
Na kila jumper lazima kutumika katika cm 2-4 ya fimbo ambayo ni uongo. mahesabu ya jumper wima ifuatavyo kanuni sawa kama katika mahesabu ya urefu unaotakiwa kwa misingi slab kuimarisha.