How to Reinforce Ceiling Joists to Handle Heavy Loads
网页This would create a flat surface to adhere and nail on the double tall 2x6 joist. It would also add some stregth too if you glue and nail the plywood filler the entire length of the i-joist. Avoid the temptation to use 2 pieces of plywood filler on each i-joist. This will align each plywood filler joint right in the center of the 16' span.
How to Build a Coffered Ceiling with Box Beams
网页In the kitchen/dining/living area shown here, we bumped out a 40-ft.-long exterior wall by 6 ft. and replaced it with a 16-in. LVL beam supported by two 3-1/2-in.-sq. columns. The beam bisected the ceiling into long, narrow areas disproportionate to one another. I needed to divide the ceiling into sections that made sense visually while ...
Plywood ceiling? - Fine Homebuilding
网页2009年4月12日 · Bill,Actually the ceiling will be for the lower level of a two-story building that's 65+ years old. The joists are 4*6s on 16" centers. I am planning on insulating between the joists and using the plywood to keep the critters out. Edited 4/12/2009 8:42 pm ET …
Finish air nailer for plywood ceiling - Fine Homebuilding
网页2002年7月16日 · Hi, Lance-. In my opinion the adhesive is overkill for the ceiling. And I don't like to rely on finish nails for this application. My own preference is to use 1/4" crown staples- for the 3/8" ply I would use 1 1/4" or 1 1/2" long staples. Set them with the staple width running parallel with the grain- they will countersink very cleanly without ...
An Easy Approach to Coffered Ceilings - Fine Homebuilding
网页Tack the ceiling panels in place. Plywood panels cover imperfections in the ceiling, create a smooth surface for paint, and offer a nailer for trim. If the layout and framing was done well, the panels will all be very close in size, if not exactly the same. Take care to locate lights and registers and cut the panels accurately.
Five Cathedral Ceilings That Work - Fine Homebuilding
网页Assembly #4: Unvented assembly with closed-cell spray foam. It’s possible to create an unvented roof assembly using only closed-cell spray foam. The illustration shows an assembly with R-38 insulation, which is enough insulation for Climate Zones 1, 2, or 3.
Plywood Ceiling Tape - Fine Homebuilding
网页2006年5月15日 · Working with epoxy is a PITA. (I can say this with some authority, having epoxied together a kit boat.) Not worth it for a plywood ceiling, and not likely to give a smooth finish.If I had to tape it I'd use mesh drywall tape and cover it with either setting compound or (better) a premixed spackle.But some sort of lath over the joints makes …
How to Insulate Cold Floors - Fine Homebuilding
网页2012年3月8日 · One of the best tapes for sealing the seams of rigid foam is 3M All Weather Flashing Tape 8067. The rigid foam should be protected by a layer of plywood, OSB, or drywall (for a garage ceiling). 5. Whatever type of insulation you install, the total R-value of the floor assembly must be no less than minimum code requirements.
Using plywood in built-up beams - Fine Homebuilding
网页1995年1月1日 · To compare built-up wood beams, I multiply beam width by beam depth squared, and then I divide the product by 6. A triple 2×10 beam has a bending-resistance factor of 64.2; add plywood between the 2x10s, and the factor increases 15% to 73.7. A beam of four 2x10s and no plywood has 18% more bending resistance than three 2x10s …
24-in.-on-center Framing - Fine Homebuilding
网页Rafters set 24 in. apart have 50% more load on them than rafters 16 in. apart, but in most cases this is easily handled by using a slightly deeper rafter. (For the geometry defining the strength of beams and other rectangular framing members, the Moment of Inertia, width is multiplied by the depth cubed. A 2×12 is almost twice as stiff as a 2×10.