i am poor and cheap so i go tothe hardware stores and but the things they use to join roofing. i don't know what it is called but one side is tar, and another side is aluminum. and it works really really well. down side is when u put it upside down in the summer it will peel off.

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198? 300D ???K - Future DD
1989 300TE 285K - traded in '12
1984 300SD 186K - Sold in 08
1978 300SD 330K - Died in 05