HDPE or UHMW for well cover?

Decision Time: HDPE or UHMW for Well Cover?

Both HDPE (High-Density Polyethylene) and UHMW (Ultra-High Molecular Weight Polyethylene) are variations of polyethylene. However, they share one significant drawback: their UV resistance is poor, making them nearly impossible to paint or apply other protective coatings.

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Build another cover but this time roof it with galvanized steel.

If I had access to a break, it might be possible to form a cover without any other structure. It’s an interesting option to consider.

Or use stainless steel. It should last as long as you do.

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Using stainless steel sounds great, but it also has its drawbacks. When I built the fancy cedar and redwood hip roof version, I initially used cedar shakes and leftover copper flashing. Unfortunately, my neighbor advised me to switch to regular brown asphalt roofing shingles to avoid theft or vandalism. He was right; anything valuable might attract unwanted attention.

My well cover is about 1/4 mile from the house on a separate property. While we own the water rights for the entire hillside, the area is secluded but not entirely safe from trespassers. Stainless steel can be painted, but it might still be too visible from the roadside, attracting thieves.

Additionally, any wood structure is likely to rot over time, especially from the inside. Critters also tend to gnaw on wood, making wood framing a less ideal choice unless I'm willing to replace it every few decades. Since the well cover must measure about 46" x 60" with overhangs, options like cedar and redwood are out due to their high weight and potential for rapid decay.

Steel, while durable, rusts easily and requires maintenance like sandblasting and epoxy coating. A minor scratch can initiate rust, demanding continuous upkeep. In summary, plastic options seem limited due to poor UV resistance, and stainless steel or wood structures come with their own sets of challenges.

Came back for a late lunch. So any form of easily weldable plastic is out? It’s interesting to consider alternatives. Given the discussion, it seems both steel and wood structures have substantial drawbacks in terms of longevity, maintenance, and security.

UHMW for Rusty style JYH Ram Guides

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