| 摘要 |
The invention relates to an elongate retaining element for building sheets comprising an engagement section for engaging at least one building sheet and a base section for mounting the elongate retaining element on a support structure characterised in that the engagement section and the base section are connected by means for reducing the thermal conduction between the engagement section and the base section where the means has a lower thermal conductivity than the engagement section and base section. <IMAGE>
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