Plywood Leveling Shims For Roof

Glue and screw the plywood.

Plywood leveling shims for roof.

Check how level your floor is as you work to make sure you re not creating new dips and high points. How to cut a 12 foot shim. To shim the floor take a straightedge or a level and look for imperfections in the flatness of the floor and determine if it needs to be raised or lowered. All you have to do is use shims to level your hot tub.

To make a second shim just run the 2x4 through the table saw squaring off the tapered edge. Build up from the lowest elevation using the products that allow for enough incremental elevation gain to get to within flatness tolerance. Shim the subfloor with shingles and plywood to bring it level in the same way you would if the slope was parallel to the board direction. I was going to install a hardwood floor 5 8 thickness but ther.

Try to avoid relying on the 3 8 plywood to level the floor. Plywood is available in many thicknesses 1 8 1 4 11 32 15 32 19 32 23 32 and 1 1 8. In this video you ll see how you can do plywood subfloor leveling using the plywood sheets. Cutting slices off a jobsite 2x4 can compromise the equilibrium of the wood which can cause the wood to bow slightly so you may need to square up an edge again.

When you are using more than one layer of shingles stagger or stair step the shingles. Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof design. If the level of your floor is still slightly off after you ve applied the plywood you can use a layer of roofing felt to even out the floor before you install your flooring. My favorite shim is these heavy duty plastic shims from ez shim click to see them on amazon.

Plywood allows for a much better build up with lower undulations in the subfloor. Start with a level nailing surface whether you re using plywood or oriented strand board osb the first step in building a high quality roof is to make sure you have a level nailing surface. If you are dead set on using the sloped slab then it s really simple. Purchase the shims and follow the instructions from your owner s manual or the hot tub manufacturer.

To cut a 12 foot shim cut a cruddy 2x4 to six feet long.