Wood Deck Boards Cupping
The problem of deck boards cupping is common but it should not be happening.
Wood deck boards cupping. Wood develops a memory over time and that s why you see deck boards in the permanently cupped position even when they are dry when installed bark side up. This article explains the causes of wood board cupping and gives advice concluding that unless a board is already badly cupped or has a bad side when construction of outdoor decks and wood stairs you should place. This article series explains the causes of cupping in wood boards wood board right side up advice for steps decks ramps. There are a number of ways to prevent this and fix your problem and make your deck last longer.
But when it rains and the board warps water collects in the concave shape and pools there. Bark side up or down on exterior wood decks stairs. The main reason proponents like this method is ironically to reduce cupping. This article series explains the causes of cupping in wood boards wood board right side up advice for steps decks ramps concluding which side of boards should face up or down bark side down or bark side up in some cases when building a deck or exterior wood stairs.
From what you are describing there could be a few different reasons why your deck is acting the way it is and the most likely cause is the way the boards are nailed down. In the case of cupping the moisture content is different on the top surface compared to the bottom surface. This has to do with the board s reaction to moisture and the heat of the sun. The result is either a cupping of the wood or a crowning depending on which way you face the board.