Caulking Cemplank Siding

V caulk replacement when sealant is in need of replacing carefully remove existing caulk and replace with a high quality paintable latex caulk.

Caulking cemplank siding.

Vertical trim gap caulking. In my experience water that gets trapped against fiber cement siding can be absorbed by the material causing joints to swell and shrink during freeze thaw cycles. Do not caulk between siding and any built in receiving channels located at or around windows. A diyer or a novice painter might attempt to achieve a cleaner look by caulking the siding nails but the nail is guaranteed to push the caulking material out within a few months.

Always prime or paint any cut edges that are inserted into a window j channel. Caulking sealant must be applied in accordance with the caulking sealant manufacturer s written instructions or astm c1193. Cemboard siding provides the look and texture of wood with proven fiber cement performance at an exceptional value. Cemboard fiber cement siding products are an attractive and durable alternative to vinyl and wood based siding.

Instead we snug the joints up tight and. Is the old caulking removed before new coats are applied. Similar to paint previous coats of. Leave a 1 8 gap between the siding and the trim or other materials to allow for structural movement.

The nails holding up the siding should not be caulked. On our jobs we typically don t leave gaps for caulk at butt joints because this detail can contribute to the problem. Always caulk between the siding and the trim. Dents chips cracks and other minor surface damage in james hardie siding and trim products can be filled with cementitious patching compound.