Most framing contractor's look at the building plans and order all of the material, according to those that are specified on the plans. This works out fine, and can often save you money, but rarely produces the best home that you could possibly frame.
As a professional framing contractor, I would like to share one of my house framing tips with you. Most plans require half-inch plywood or oriented strand board as their roof sheeting. This product is fine and if you're building a lot of homes, you're not going to have the choice. Ordering larger sized plywood could cost you thousands of dollars, especially if you're building a lot of homes.
However, if your framing or building a home for someone or even yourself, you might want to take my advice and think twice about it, before ordering the roof sheeting. Half-inch plywood, works okay for 16 inch on center roof rafters or engineered truss roofing systems. It doesn't work well on 24 inch on center roof rafters spacing.
It is usually flimsy and weak at the center point, directly in between the 24 inch roof rafter bays. If you're going to use the half-inch plywood, I would recommend using plywood clips that are relatively inexpensive and can be placed in the direct center of each roof rafter bay on each sheet of plywood. These can be purchased at most home improvement centers or lumber yards.
The other alternative, and this is what I recommend, would be to use 5/8 inch plywood. This plywood works great for 24 inch on center roof rafters and you will have a nice sturdy roof to walk on, while roofing your home.
I have actually seen people step through the flimsy plywood, while lifting heavy roof tiles and bundles of composition roof shingles. Experienced roofers try to walk directly on top of the roof rafters, when loading their roof shingles or even carrying them on the roof.
If you're a home builder and your concern is about making a profit, you will need to use the half-inch plywood. If you want to build a superior roof, use the 5/8 of an inch plywood.
If You Live in Northern San Diego County or South Orange County, and You're Looking for a Great Contractor, Click on This Link House Framing Contractors.
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Greg Vandenberge is working on the internet to promote the education for creating simple to follow guides and home building books to help professional building contractors as well as the weekend warriors. He has just finished a excellent home inspection checklist to take some of the frustration out of home shopping.
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