Why caulk types are important
You bet it is, one of the single most important areas to protect on the exterior of your home are the edges of the boards. This is where the weather will attack first and start the paint to peel and even rot the wood.
There are several types on the market today and not all of them are best for the exterior of your home.
Basic types of caulk
- Acrylic Latex Caulk: This caulk is used for areas with very little movement and should only be used on interiors.
- Urethanized Elastomeric Caulk: This type of caulk is much more superior to standard Acrylic Latex Caulk. Urethanized Elastomeric Sealant is more flexible and durable and can be used on interiors or exteriors. This caulk is more weather resistant and prevents failure for a more extended time. 35% more elasticity
- Silicone Caulk: If you plan on painting over or near the caulk, do not use silicone, paint will not stick to it at all.
|Urethanized Elastomeric Sealant||Acrylic Latex Caulk|
The price difference between Urethanized Elastomeric Sealant and Acrylic Latex caulk is only about $1.00 which is very little when it comes to protecting the single largest investment your home. So when talking to your exterior painting contractor it is important to know what type of caulk he is using. They could be using caulk that will not last very long and taking the cheapest route, which will cause the wood to rot sooner than the paint will last.