וַיַּ֤עַשׂ מִכְסֶה֙ לָאֹ֔הֶל עֹרֹ֥ת אֵלִ֖ים מְאָדָּמִ֑ים וּמִכְסֵ֛ה עֹרֹ֥ת תְּחָשִׁ֖ים מִלְמָֽעְלָה׃ (ס)
And he made a covering for the tent of rams’skins dyed red, and a covering of sealskins above.
Read midrashic interpretation of Exodus 36:19: and classical rabbinic exegesis.