How Many Structural Connecter Per Plywood Roofing

There is no way of knowing how many pieces of plywood need replaced until the tear off is complete.

How many structural connecter per plywood roofing. Galvanized 20 gauge steel plywood clips 250 pack pscl 7 16 r250 20 gauge steel construction creates a 1 8 in. 02 16 2007 04 33 pm. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. In this case you need 47 sheets rounded off from 46 88.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. In roofing plywood is often selected due to its strength. Although the roof structure takes the majority of the weight plywood needs to be able to support the rest of the roofing system. Divide that by 32 the square footage of each 4 8 plywood sheet.

This carries enough structural integrity for most roof loads. H3 1 losp is the standard preservative treatment for bd structural square. Additional plywood clips can be added to maximize load bearing in a specific area but the minimum clip placement described should be maintained in general. My roof needs a complete tear off and bad plywood replaced.

Density of plywood is 34 36 pounds per cubic foot compared to osb at 38 42 pounds per cubic foot. Let s say that your roof has a total of 1 500 square feet. Steeper rather than flatter roofs will have lesser load per sq. The number you ll get is the number of sheets that you need.

One 23 32 4 x 8 plywood piece would weigh approximately 67 lbs. This kind of plywood can be used on roofs with minimal load. Acquire the simpson strong tie pscl 7 16 in. Structural i is unrelated to the bond classifications also known as exposure durability classifications exposure 1 and exterior.

Gauge between panels at the home depot. Using plywood for roof and floor sheathing can reduce risk of sagging roofs and floors. Plywood clips are available in sizes to match nominal plywood thicknesses. Proper structural function of the clips require they match the thickness of the plywood panels being used.

I am paying for the materials. Why is plywood used in roofing. Foot and with a maximum of spacing of 16 inches between rafters. The ideal thickness for the standard rafter spacing of 24 inches is 5 8 th of an inch.

In many applications a substitution of rated sheathing that is 1 8 perf cat thicker than the specified structural i will result in comparable performance. If treated ecoply structural plywood is treated with either h3 2 cca copper chrome arsenate or h3 1 losp azole clear treatment. Plywood has structural strength in only one direction osb in two. I roofer wanted 20 per sheet of plywood for labor.