Wood Roof Sheathing & Underlayment Requirements.This article discusses the requirements - specifications for roof sheathing (nailers or plywood or osb) and underlayment (roofing felt) for wood shingle - wood shake roofs, . The traditional way to lay wood shakes and shingles on spaced sheathing was ideal for wood roof longevity, but it has largely fallen by the wayside.
Metal Roofing Decking, Battens, and Underlayment Facts.4 Nov 2014 . However, to avoid condensation concerns with those products, the battens can be installed over solid decking instead of direct to the roof trusses.) Can strong attic ventilation and an interior vapor barrier compensate for metal roofing installed over battens and prevent condensation problems? That is.
Roofing: Why do we need plywood over our old solid sheathing ..If you want new asphalt shingles installed then solid sheathing must be applied first. This can be exterior grade plywood or oriented strand board (OSB). Be sure that the roofer uses rated sheathing; most is rated by the APA – The Engineered Wood Association base right here in the Puget Sound Region. To prevent buckling.
Plywood Roof Sheathing | Don't put new roof sheathing over old ..26 Aug 2001 . Can new plywood be installed on a 40-year-old roof without removing the old? Roy Gingrich of Ellicott City has a 40-year-old house with an asphalt shingle roof surface. The existing asphalt shingles need replacement, so he plans to do a tear-off and re-shingle. Because the plywood roof sheathing under.
Cedar Shake Roof Installed Under Asphalt Shingles.13 Mar 2017 . Once we have reached the furring strips, we install a 1/2” CDX plywood deck over the furring strips. Why do we use plywood? Plywood does two things for us: Plywood fills the gaps that are left by the furring strips. Also, the 1/2” plywood is stronger and is designed to hold up the heavy asphalt shingles.
5 Steps to Proper Roof Sheathing Installation | Professional Builder.Install baffles providing a minimum of 1 inch of clear space between framing and/or under roof sheathing at eaves to ensure that ceiling or roof insulation does not block . Unless otherwise recommended by the sheathing manufacturer, cover the sheathing with shingle underlayment felt to minimize exposure to weather.
Roof deck materials to ensure a stable roof surface | IKO.4 Oct 2016 . The type, grade, thickness and installation of materials used for roof decks should conform to the requirements of the relevant local building codes of practice and regulations. The roof deck should be a stable, smooth and solid surface where shingles can be easily and, more important, securely installed.
How best to replace old skip sheathed wood shakes with asphalt ..6 Jul 2013 . I am in the process of replacing my wood shake roof with asphalt shingles. The original redwood shake roof was installed in 1980 over 1x6 inch pine skip sheathing. While I liked the look of wood shakes, fire code now prohibits their use in our area. Also seismic considerations now require plywood (or OSB).
Decking and Sheathing | Installation | Cedar Shake and Shingle ..Decking & Sheathing. Can I use solid decking for my shake or shingle application? Shakes and shingles may be applied over spaced sheathing. Spaced sheathing is usually 1 x . Please note that the only solid sheet sheathing tested with shakes and shingles is plywood. . See the CSSB's New Roof Construction Manual.
Oriented Strand Board | Installation | Cedar Shake and Shingle Bureau.Oriented Strand Board (OSB). Can you install cedar shakes over OSB? Certi-label shakes and shingles have only been tested on plywood decking. Make sure you use a very good quality hot dipped galvanized or stainless nails that are ring shanked to hold the roof to the OSB and check with your local Building Official to.
Wood-Shingled Roofs and Your Historic House | Wisconsin ..If your historic house originally had a wood-shingled roof, you might consider installing a new cedar-shingled roof. This work requires some advanced skills, . original wood shingles in these gaps. Even if you can't see shingles in the gaps, you can assume your original roof was wood shingles if you see skipped decking.
How To: Tear Off the Roof Deck and Prepare for Shingle Installation ..8 May 2013 . GAF- Mastering The Roof (chapter 04) Nothing is more critical in roofing than preparing the surface underneath the shingles. Sometimes, there can be hidden d.
Shingles, Wet Wood Usually No Problem - tribunedigital-sunsentinel.20 Dec 1996 . Q. After having a new shingle roof installed, I found out the shingles had been installed over a wet plywood deck. The plywood dried out, but it now exhibits signs of rot. Should I be concerned that my roof will continue to deteriorate? A. Shingle roofs are installed every day over wood decking that has been.
Decking/Sheathing Case Study - Donan - Forensic Engineering ..1 Oct 2014 . In a meeting on site with the contractor, he indicated the roof decking was “not up to code,” and that the decking would have to be replaced when the roof was replaced. decksheeth1 . According to their documentation, CertainTeed shingles can be installed on 1×8 decking if it is either overlaid or cut.
Replacing Cedar Roof Shakes with Asphalt Shingles.23 May 2013 . Cedar roofs will keep the attic up to 15-20 degrees cooler than asphalt shingles. This means that if you are converting to an asphalt roof, your summer cooling costs will increase. One option here is to install radiant barrier sheathing. Radiant barrier sheathing is able to reflect up to 97% of radiation and can.
The Roof Deck and Tearing Off or Roofing Over4 - American Shingles.Roof deck performance can have a strong affect on shingle perfor- mance. A bad deck can be a real headache. The causes for many of the complications that a problem deck creates can usually be traced back to the design of the building, the materials used to make the deck, or the way the deck was installed. CertainTeed.
5 Things You Need to Know Before You Replace Your Roof ..13 Apr 2016 . The tear-off gets a lot more complicated if you have something other than asphalt up there: If you can see original wood shingles on the underside of your roof when you're up in the attic, you'll need not only to tear everything off, but also to install new plywood decking, all of which likely adds $5,000 or more.
Proper substrate for replacing cedar shake with shingles | This Old ..21 Apr 2010 . One contractor says that is OK, if done right, and I trust they would do it right, but would love to get an unbiased opinion if plywood sheathing is . Asphalt shingles can't be directly installed over skip sheathing used under wood shake roofs, you need full support for the paper, shingles, and solid nailing.
Roof Installation Guide: How To Replace Shingles And Roofing ..18 Oct 2017 . This post will discuss how to install shingles on a roof correctly, to avoid future problems. The most important steps in the process are to: 1. Tear off the old roofing material. 2. Repair plywood or sheathing. Unfortunately, many homeowners neglect to do this in an effort to save money, without realizing that.
INSTALLING METAL ROOF OVER SHINGLES | Ask The Experts ..I am assuming that the existing roof and decking will be left in place. In that case, I would cover it with underlayment and then vertical battens followed by horizontal battens. This is provided that you choose a metal roof which can be installed over battens. The reason for vertical battens first is that this will create an air.