Close up image of  a vinyl siding panels warping or buckling.

Vinyl Siding Warp – EXTERIOR

Warping or buckling of vinyl siding panels that have been repainted.

Causes

  • May be caused by painting with dark color. Dark paint tends to absorb the heat of the sun, transferring it to the substrate. When vinyl siding expands dramatically from heat, it may not be able to contract to its original dimensions.

Solutions

  • Avoid painting vinyl siding or other thin exterior PVC material with a darker color than its original color unless specifically recommended by the material or paint manufacturer.
  • Use high-quality exterior paints formulated with superior flexibility to withstand the stress of expansion and contraction cycles caused by outdoor temperature changes.
  • Siding that has warped or buckled should be assessed by a siding or home repair contractor to determine the best remedy. The siding may have to be replaced.

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