How To Seal Siding Joints

Proper sealants are important for preserving the integrity and warranty of lp siding.

How to seal siding joints.

2 house built before 2008 so has no flashing okay to caulk. A lot of moisture from rain snow misdirected sprinklers or exuberant water fights can get in there enough to do some serious and expensive damage. It depends on the option you choose but if joint caulking option is selected seal all gaps at butt joints with a high quality exterior sealant meeting the astm c920 minimum class 25 sealant. Lp siding requires flexible exterior grade paintable caulk to seal gaps.

Lp requires a minimum 3 16 spacing at all butt joints. Wall corner siding trim flashing details. Do i have to caulk at butt joints. Although lp building products siding is available bare or painted cutting the materials to fit during installation exposes some areas to the elements.

1 i chose this caulk because it has 25 flexibility compared to silicone based caulk. Tthis article gives specifications for proper flashing sealing detailing at building siding joints corners and window or door openings to provide an attractive and durable job that doesn t leak or rot. It provides an easy and efficient method for siding rustic structures like barns and sheds and is commonly used on houses as well. It comes untreated so you have to paint or stain it after installation if you want it to last and provide maximum weather resistance.