The roof is partially framed and every piece of lumber and all the flat OSB is soaked. BUILD YOUR HOUSE YOURSELF UNIVERSITY-- BYHYU, During the past week in my area, it's rained almost non-stop for 3 days. Use heat Can we waterproof plywood with Clear Penetrating Epoxy Sealer? There is very little that one can do to prevent a rain-storm but there is a lot that one can do to make sure that materials arrive on time and that the work progresses on schedule. Apply the geotextile to all edges and where two sheets of plywood meet. This process will take several hours, but once it is finished, the plywood will be rejuvenated and ready to use for your project. The history: plywood dates back about a hundred years, but it took decades before it replaced solid planks as the industry standard for closing up a house. Lumber that does sit on the job site should be off the ground at least four inches and be covered by a tarp that protects it from rainfall. But rain on the decking then roofing done as long as the roof is leak free now, you should be fine. Timbered logs are routinely salvaged that never made it to sawmills over a hundred years and these logs are prized pieces of wood. Although plywood is usually more expensive than OSB, plywood is more resistant to moisture damage. The best plan is to assume that it can't get wet and cover it whenever possible. Lowe's and Home Depot), or even online through these chains or direct from the manufacturer. Especially here in CA. most people forget about the floor !! For equivalent fungal resistance to Douglas-fir-faced plywood, Forintek recommends a combination of 0.2% zinc borate added during manufacture and 10 mg/cm2 Oxine copper sprayed on the surface. The rear wall of the 24x24 garage he built me is bowed out (hopefully not permanently) and the trusses expanded on their bases so that the outer fascia boards when nailed to the edges of those trusses looked like a crooked country road instead of a straight surface for cladding and gutter mounting. OSB boasts a more consistent density. If I get the WBP ply down first, will that survive a few days of rain before I get the chance to apply the layers of felt (or whatever I'm using) ? The tarp should not be wrapped tightly around the stacked lumber. Builders use it on roofs and walls because plywood is notorious for warping. The lumber that is being used to build your home came from trees that were out in the rain all the time as they grew. A few showers of rain or a storm on your plywood will be ok as long as it is for only an hour at the most. AdvanTech can sit in the rain for months and not swell at all. In addition the fans, you could also ask your builder or framer about a running dehumidifier to help dry your house frame. This product is truly a ground breaking product for the building industry. My houses are somewhat large, and it is not uncommon for the plywood to get rained on since it takes 4-5 days to deck them, they sit for 2-3 days before roofer can get on the job, throw in a weekend, there is a good chance they will be rained … Asked by: Nick. OSB panels can be manufactured in lengths up to 16 feet (or sometimes even higher), while plywood is generally limited to 8 to 10 feet. Plywood can even delaminate and literally come apart at the seams. 3 posts • Page 1 of 1. Catch up with some of Tim’s previous columns: How to repair blacktop cracks inconspicuously. Plywood is an amazingly versatile building material. floor level. A small amount of rain will not ruin plywood. 3 comments: OSr Group May 2, 2014 at 12:55 AM. This is normal when plywood gets wet during construction. Be sure to always read the directions on … Please help! I hope that makes sense. Use heat Page 1 of 2 1 2 Next > Joined: Aug 2011 Posts: 63 Likes: 3, Points: 8, Legacy Rep: 50 Location: CT nbehlman Junior Member. The wood needs to remain damp and wet all the time for wood rot to advance. AdvanTech – Worth The Cost. Answered by: Patriot Timber Products. OSB panels can be manufactured in lengths up to 16 feet (or sometimes even higher), while plywood is generally limited to 8 to 10 feet. Steps are mentioned below on how to save the plywood from water: First step is to identify to which category the plywood belongs indoor or outdoor. Bill, the foil back plywood is all I've used for 12-15 years. For protecting flooring area customers can use oil with an anti-fungal preservative. You can also create waterproof MDF by adding a high quality wood sealant, varnish or stain or moisture-resistant paint so that your project can withstand threats of moisture and humidity. Lumber on the job site that’s in piles needs to be covered and up off the ground. Like any other wood, however, it is important to use the appropriate equipment to ensure that the finish appears as desired. When I was building, I used to spend extra money and apply a clear penetrating water repellent to the plywood and OSB I used on the floors. This means the job site needs to be clean. You’d probably be surprised to know that lumber that is submerged in fresh water can be in great shape and rot-free for hundreds of years. Standing water on the OSB needs to be swept away. This will mean the layers of wood will get soaked by water which can start to affect their structural integrity. You will have to go to a real lumberyard to get it though and most inland lumberyards won't stock it. This is happening at My Sons House. Here are the four main ways you get wet framing lumber to dry: 1. Plywood can be stained in many different colors. Once saturated, the boxing is no longer structurally sound and must be replaced. Oh wow. So get it dry as quickly as you can, and you should be fine. You spray the lumber and OSB using a the same garden sprayer. When exposed to moisture, the wooden layers can swell or deform. You want the sides of the stacked lumber exposed to the air but protected so rainfall can't hit the lumber. 2. Generally, plywood roof decking that has gotten wet and had … Posts: 2 Joined: Sun Jun 01, 2008 11:07 am. Will it hurt the lumber? Clear Penetrating Epoxy Sealer – CPES. When selecting plywood for exterior walls, ensure you get exterior grade plywood. Read the directions on … Bill, the can plywood get rained on needs to be swept away to always read the directions …! Doesnt can plywood get rained on in water too long breathy finish and an annual care will do an excellent job cleaning... Best choice depends primarily on the decking covered before it rained the edges of plywood that is about to... 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