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Preparing to Paint the Victorian's Exterior

Bob joins Ron Boyajian and the painters for the prep work and painting of this 100 year-old wooden Victorian. The painter explains that they power wash the surface with a 50/50 mix of bleach and water to blast away loose paint and kill any mildew. He then shows how to feather the edges of the paint with a sander for a smooth finish. A drop cloth, and a catch on the sander keep chips out of the soil, but it's critical to check for lead content in the paint before disturbing it. Boyajian shows Bob the moisture meter used to check the moisture content in the wood and verify the right type of paint to use on the surface. At around 10 percent moisture, a latex paint will adhere without peeling, but at 25 percent, oil-based paint will peel, so it's important to get an average for the house. Boyajian gives Bob the basics on priming before painting. At 60 percent bare wood, he says it's best to prime the entire house. California Paints uses their Trouble-Shooter linseed-oil-based primer to hold back the tannic acid in the new cedar clapboards so that they won't bleed into the new paint. The painter shows the proper technique for covering clapboards, using a hand-brushing technique to cover the butts first and then the face of the clapboards for good coverage. This primer is tinted to half the depth of the color of the finish coat so that it will hide any imperfections in the top coat.
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Preparing to Paint the Victorian's Exterior

  computer-generated transcript - may not be 100% accurate

" So we're gonna get started painting the house today and it's perfect weather for painting in New England it's cool and crisp. Not much humidity to deal with. And we've got Joe -- are sent here from -- and -- pay aiding and -- four guys you and they get right you did from California paints and you Marty got a fair amount of the prep work done don't you yes we do. What what have you done this is a hundred year old clapboard house. And probably last painted maybe five or ten years ago."

" What's both we scraped down pretty well in that way Powell washed it with a 5050 mix will be 5050 of what bleach and water. Oh really that much bleach yes and that's in your power washer that it was so when you're doing that. Are you trying to blow off all the loose stuff for Regis kind of washing washing is -- little stuff off -- say the easy ruining the boards at all yeah that's the danger with a power -- if you get too close with that machine. You can cause a lot of damage to the claps switched off and we just like this whole wash quite a bit and the political stuff off. So the main purpose of that bleach solution is to get off any mildew is and that's did you find any mildew -- we did. Yes we did yeah trees up above create yeah and now this house has a big old tree right up from the front which drops a lot of leaves on it that's one of the things that probably. Needs to be trimmed back so what are you up to right now right now we're sanding down on the windowsills and the casings. Prepping them -- to recruitment and Brian I notice you've got to drop cloth right up on to the edge of the house and over the shrubbery and stuff that's. This -- that that weigh nothing gets down into the soil. We also have a catch catch on the Sander itself."

" You have a catch on the disc Sander so that that's sucking up a lot of the dust that's it's important to keep. To a minimum what you spread around the environment regardless of what kind of paint go ahead we'll will would shift. So if it comes -- take it down to bare wood. If it doesn't come off he just kind of feather the edges right positively yes OK now what about Ron what -- what about that the moisture that's in the wood how do you figure if that's problem. Well I have a moisture meter we'll plug it in unity and -- See how that works. So US around the house with this."

" Little machine yeah and it will in various areas give you different readings but you can take an average and get -- get a feel for whether there's a problem with moisture in the house. And whether it's is also winning this thing has a little pair of prongs bronze and -- measure and measure that you just kind of go anywhere with what you write and yet. That. In -- it's and we push right there and it reads just a little over ten that means that this -- sent -- a moisture. And that's not bad as -- that's excellent if it's under. If it's under 25 -- so latex paint -- 100% acrylic latex paint won't peel if it's under. If it's between fifteen and twenty oil based paint will feel less what people don't use oil based paint very much anymore so the ideal primer in an old house like this is what. The ideal primer is a linseed oil based primer which which is what we using here and this -- yup. And that's what he's putting up there on the top of the ladder correct. And that. That gives you good adhesion over a chalky surface where where. Power washing may not have moved so -- says it has linseed oil it it's a linseed oil -- this product just like any old -- absolutely. Little slower drying but but it works beautifully okay. And then over that eventually we're putting on latex based primer first right how important is it. Even on an old house that's already -- to put a coat of primer on it. It's only important when you when you have. -- if you if you've got paint in good sound condition it's it's not as long as it's not terribly chalky. It's not. Necessary to to prime it to furnish coat will be fine you in a situation that we've got here will probably be doing some spot priming right yeah you as a rule of thumb is if if sixty if -- down a 60% deal would then just prime the whole thing because -- just more efficient OK. And we've got a combination of that kind of situation and then new cedar clapboard right. They've been put on some very important with the cedar to there's a special chemical in this product to hold actually to -- gas of which. Is what we call cedar bleed and that'll bleed through a coat of paint and in. Having a tobacco stain. On the had a yellowish yeah yeah yeah. So you if you have this kind of a product on your house brand new cedar clapboard Confucian specifically have a primer that has that that cedar. Yet and in that innocence troubleshooter primer has. A chemical and called aryan -- borate -- and that's would hold back -- most most primers don't have it this particular one."

" So what he's doing up there now at the top of the ladder is slow but. It's the only way to really do it right there really is hand brushing. Such are you ready to start priming over here sure OK so I noticed that you -- You've put the paint into a pail why not -- out of here."

" Won't you get better coverage on your brush itself whereas you can knock it down and -- bridge yet in a kid and that won't happen."

" In him that won't happen just the way you did it so quickly there that you better a better load on on the brushes and it's not dripping through and import. And you ordinarily would start with the top but because we're looking at -- of the cameras just let's just talk about technique and what kind of brush is that."

" That's so Purdy sash brush -- windows along with some missiles of the curve but is it Chinese bristle or is it acrylic -- Because nylon nylon. Brush it's announced this. All right go -- and what we do is we sat with some butts of the clapboards themselves. We're -- three different clapboards bring them down. It all the butts in really nice with a good coverage. And -- look over the words themselves. With a good solid coat of primer."

" And again this is on our new wood. On the existing. Walls of the house -- just spot prime wherever he's -- sanded down to bare wood and now. In the olden days a lot of primers came through and as kind of a -- you color Ron."

" Because -- wasn't all that. Popular or all that common -- isn't it this is tinted to half the strength half the depth of the color of the finish coat. And what that does is it makes the finish coat. Hide that much better so you don't see the holidays from. Here is if there should be any but there won't be any right -- I don't know coach Dan -- holidays here good all right well we'll check back with you as you get further -- great."

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