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WILL1E
Moderator
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# Posted: 18 Sep 2021 02:39pm
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Did I read correctly somewhere on here that folks use asphalt shingles to get their beams dialed in level on top of their concrete (poured or block) piers? Might have a few spots where getting it all level requires thinner adjustments than dimensional lumber.
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Steve_S
Member
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# Posted: 18 Sep 2021 04:57pm
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I've seen it used as a barrier between a concrete surface & wood to prevent moisture wicking.
As for using it as a "shim" as such, I'm not sure how that would work over time, but that would be subject to the conditions I guess. The bitumen/fibre blend can only take so much, it doesn't have that much compressive strength.
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ICC
Member
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# Posted: 18 Sep 2021 06:43pm
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As Steve stated most uses of an asphalt shingle under a wood beam would be to act as a moisture barrier between the wood and concrete. I don't think that type of shingle would make a satisfactory long-term space shim. When needing to shim a foundation we would often use a steel plate or several together.
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WILL1E
Moderator
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# Posted: 18 Sep 2021 09:30pm
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Hmm. I need to do some shimming for 1/16â€-1/4†range. I’m using concrete block and PT built up beams.
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spencerin
Member
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# Posted: 18 Sep 2021 10:58pm
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I used a shingle as a shim before.
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gcrank1
Member
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# Posted: 19 Sep 2021 12:36am
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How about asphalt floor tiles? As I recall they are thicker and more dense than shingles.
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