How To Seal Siding Joints

It provides an easy and efficient method for siding rustic structures like barns and sheds and is commonly used on houses as well.

How to seal siding joints.

Lp siding requires flexible exterior grade paintable caulk to seal gaps. 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. 1 i chose this caulk because it has 25 flexibility compared to silicone based 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.

Butt joints are a perfect example of poor joint design they re too small to accommodate a bond breaker so the caulk can t stretch properly once applied but they re also too large to simply leave alone. 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. Proper sealants are important for preserving the integrity and warranty of lp siding. Wall corner siding trim flashing details.

Do i have to caulk at butt joints. It comes untreated so you have to paint or stain it after installation if you want it to last and provide maximum weather resistance. Lp requires a minimum 3 16 spacing at all butt joints. T1 11 is an engineered plywood product.