Caulking Cemplank Siding

For best results use a latex caulk that complies with astm c 834 astm c920 or better.

Caulking cemplank siding.

Cemplank lap siding and cempanel vertical siding can be installed and finished like wood. Do not caulk between siding and any built in receiving channels located at or around windows. Instead we snug the joints up tight and. V caulk replacement when sealant is in need of replacing carefully remove existing caulk and replace with a high quality paintable latex caulk.

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. 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. Leave a 1 8 gap between the siding and the trim or other materials to allow for structural movement. Cemboard siding provides the look and texture of wood with proven fiber cement performance at an exceptional value.

The nails holding up the siding should not be caulked. Cemboard fiber cement siding products are an attractive and durable alternative to vinyl and wood based siding. Dents chips cracks and other minor surface damage in james hardie siding and trim products can be filled with cementitious patching compound. Always caulk between the siding and the trim.

Vertical trim gap caulking. Similar to paint previous coats of. A mark parlee a general contractor in des moines iowa responds. Always prime or paint any cut edges that are inserted into a window j channel.