Long pergola spans: ask about movement and accessory fit, not only strength
Separate structural strength from serviceability when reviewing long pergola openings, roof alignment and the fit of screens or glass systems.
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TTH PERGOLA
Pergola planning & product guides
Operating wind limits and structural wind design are different questions
Separate the reviewed structural configuration from the wind conditions for operating louvers, screens and controls, then prepare a model-specific operating plan.
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Pergola below a higher roof: include drifting and sliding snow in the review
Record nearby roof heights, slopes and obstacles so the project snow review can address uneven accumulation and the site's actual geometry.
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Pergola freeze and thaw: blocked outlets and moving parts need separate checks
Prepare a winter plan that distinguishes frozen drainage, visible ice and controller protection, without forcing louvers or improvising thawing methods.
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A pergola rain sensor is an input, not a dry-furniture guarantee
Review detection, movement time, manual modes and sensor priorities before relying on a pergola rain sensor during daily use.
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