People often ask me if Hardie Plank fiber cement siding can be installed in the rain. First let me say that Superior exterior Systems is a completely independent siding contractor with no affiliations with any manufacture other than installing their products. I can honestly say that over the years we have consistently installed more residential Hardie PLank siding than anything else. The local supply houses who stock Hardie siding have told me that year after year. So can hardie Plank be installed in the rain? The answer is yes if done properly. If you have Lp panel style siding that is getting soft at the bottom drip edge or around windows, the question is do you want to leave that on another rainy season with potentially more expensive damage happening underneath? If you have panel style, take 10 minutes and walk around your house and gently pull up every 12-16 inches or so along the bottom. If you have a 2 story, see if the drip edge at the bottom of the 2nd story is swelling. Take a crew driver and gently poke around the bottom corners of the windows. The south and west sides usually take most of the abuse so make sure to check those areas well. If you have sprinklers check the siding where the sprinkler water hits the house as this excellerates any wood decaying. Heres the problem: panel Lp siding or ANY panel style siding (4 x 8 sheets) never has a moisture barrier. It is nailed up directly over your studs. Hardie can be installed in the rain. Siding companies generally give more competitive pricing to keep business flowing during the rainy season. Hardie Plank comes covered with waterproof plastic put on at the factory because the back side of Hardie isn’t primed so that section should stay protected. All 4 edges and the surface is primed to protect from the rain. Superior Exterior Systems sprays an industrial strength fungicide on your wood as a mold inhibitor which also kills carpenter ants & termites. I know of no other company that uses this specific fungicide. The fact is that if your house is completely dry and is sided during summer, we will still wet it since the fungicide is a powder and water is the carrier to spread the powder so that it can impregnate the wood. If you are removing panel Lp siding, extra care needs to be taken so that your insulation doesn’t get wet. Fiber cement is made for all climates so can be installed during the rainy season. It is by far the most common siding used here in the Portland - Vancouver metro. Look up my past blogs on Hardie Plank and its competitor Certainteed Weatherboards for more info on fiber cement siding. For pics and more technical info on your options log into http://www.superiorexteriorsystems.com/ or simply call us at (503)285-0875 or (360) 687-8936.
installing Hardie Plank fiber cement siding in the rain in Portland or Vancouver metro?September 18, 2011 by Superior Exterior Systems Experts Leave a reply »