Cedar Siding Cupping

Cedar wood siding should be painted or stained every 6 years or sooner depending on the level of uv exposure in order to reduce the costs of repainting.

Cedar siding cupping.

Although intended primarily for restoring horizontal wood surfaces such as decks these products generally work almost as well on vertical surfaces. Cedar shake siding and cedar shingle siding is the look most buyers crave when they consider real wood siding. Either radially like one cuts a pie or horizontally similar to slicing a tomato. Traditionally and currently shingles are cut from a block of wood.

If it s just a few shingles and the curling is minor there s no need to take action. Cedar siding with a timeless beauty that is as yet unmatched requires diligent and costly upkeep. What should you do if your wood shake roof experiences curling. Wood cupping uneven moisture content the moisture variation contribution to wood board cupping occurs because when a wooden board has uneven moisture content across its thickness it will tend to expand more on its more wet side causing that side to arch or become convex while the opposing side becomes concave or cupped.

Cedar shingles bowing and cupping it s unlikely but they may have some recourse with the painter. If the boards were cut. Wood siding likely cedar in your case can be sawn from the tree in one of two ways. Head lap for beveled siding when it is installed over foam should be at least one inch or 1 1 4 by come experts.

However wood shingle curling is a good barometer of when your cedar roof needs maintenance. Shakes and shingles can be used to cover the entire exterior or be installed in gables and other areas to complement wood or stone siding. Some cupping or curling expected with cedar but the reason for excessive cupping or curling like you show happens due to improperly nailing i e too high or to far from the edge. Not to mention in your case they used staples and during expansion and contraction of wood they have no holding power.

To be a professional painter and not know that you shouldn t paint shingles unprimed shingles at that is pretty bad. Don t over nail the siding that can cause both cupping and where the nails penetrate the skin of the hardboard siding surface future water damage is likely to occur.