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Understand Project Context and Select Caulk

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What to Caulk on the Exterior of a New Construction Home | Caulking Tips for a Weatherproof Finish

What happens here

Begin by understanding that this new construction exterior project involves addressing suboptimal prior caulking work, likely performed during cold winter conditions, which can compromise sealant effectiveness. It is critical to choose a high-performance, flexible caulk, such as 'Big Stretch,' which is suitable for exterior use on various materials like Hardie board or cement board siding. This type of caulk is designed to accommodate material expansion and contraction without cracking or separating. Avoid using cheap sealants, as they often lead to poor adhesion, separation, and ultimately, ineffective weatherproofing, requiring premature re-application. A quality caulk will ensure longevity and superior performance against drafts and moisture.

Goal: Gain an understanding of the project's unique challenges, particularly regarding previous caulking done in adverse conditions, and select a high-quality, flexible caulk to ensure durable weatherproofing.

Tools and materials

  • Big Stretch caulk
  • Caulk gun
  • Gloves

What they say

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So today I'm out here. We're going to be working on a new construction exterior. Looks a little bit different than a typical new construction interior cuz I started this in the winter time and the roof was going on. I couldn't because of weather, snow, rain, uh temperature. I couldn't paint the whole entire house. I wanted to get uh the paint the fascia painted before the roof metal drip metal went on and the roof went on. So I went around hand rolled all the fascia. wanted to get that on uh or painted before because it's a lot harder to cut around the gutters, the down spouts and the drip metal. And and then they, you know, because of the house raining, snowing, water was being splattered on the house, you know, during the winter time, they ended up putting the gutters on up here, installed the gutters also to stop, you know, the mud and everything from splattering on. So, not your stereotypical new construction house. So, I got to deal with that kind of stuff. But I'm going to go over caulking. So, uh even though the ciders very stereotypically they do the caulking and they don't do in my opinion or up to my standards thorough enough caulking. I'm going to walk around show you you know some of the stuff I touch up fix caulking coaul miss stuff. You are going to see, you know, painting corner boards, uh, bottom part of the siding. You're going to see a lot of, um, black. It's a color called green black. Just because I was doing the fascia everywhere, I figured you might as well I might as well just hit all the corner boards, down, batting boards, hit certain areas to give it a coat of paint on before I spray the whole thing. And it's typically on a repaint. This is what I typically do on a repaint. typically hand roll, back roll the bottom two boards, back roll all corner boards, batting boards and stuff before I spray. I never back roll after I spray. This is all it's going to be interesting. The whole house, entire house is going to be this green black. So, it's going to be uh kind of something different. Haven't done something like that in a lot of years. But going to walk you around, show you your typical new construction, what it looks like. um the job that the citers did cocking and see if I can find anything that I need to, you know, final coaul before we spray this thing. I'll show you the product I'm using. This is the actual product that the ciders use also too. It's usually specked out. Hardy board, cement board siding, uh big stretch is…

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