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My ceiling is 21 feet 6 inches by 20 feet by 8 feet with 2 by 12 rafters 10 and a half inches on center How much insulation do you need and should you consider blown in rather than rolls?
Wiki User
∙ 14y ago
Your cieling appears to be a volume rather than an area. This is confusing. 408 inches.
Wiki User
∙ 14y ago
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How do figure how many rafters it take for a house?
The question must 1st be asked is "what spacing do you plan to use?" Local codes will apply of course. Up North spacing is closer than that of the South because of snow loads. 16 inches on center is a good number to use. You said rafters but I wonder if you meant trusses. Another problem with answering the question is the roof design. For a ranch style house you would simply multiply the length in feet by 3 and then divide that by 4 and add one for the end this will give you the number of trusses you need. For rafters you need to multiply your number by 2 and add 4 for the barge rafters.
Why is range not a measure of center?
Here is an example. Consider the range of numbers from 4-6. The range is two. The center is 5. Consider a second range of numbers from 3-7. The range is 4. The center is 5. In this case, the ranges are different but the centers are the same. Consider another two ranges of numbers. 3-5 and 101-103. In each case, the range is 2, but the centers are 4 and 102. I hope you can see how range and center are independent measurements.
Why would a computer manufacturer consider moving its 24 hour a day technical support center to a foreign country?
G
How do you determine pitch of roof?
The pitch of a roof is measure in a simple way. Rise over run. By this it means that, given the standard example of a 4/12 roof ,for every 12 inches or one foot of distance or run there is an according rise of 4 inches in height. If you wish to determine this you need to know the length of the rafters and then the height from the center of the rafter to the peak of the roof. For instance if the rafters happen to be 24 feet long that means that the run is 12 ft and if the height from the bottom of the rafter to the peak is 8 feet then you have a 8/12 pitch roof.
Do lines have to be straight?
Yes. Consider the drawing of a table. ~ Actually, a circle is the set of all points at a given distance from the center. It's technically not derived from a line.
How do you find out how much insulation you will need in your shop that is 8 feet 10 inches tall and 14 feet x 24 feet?
Unfortunately that is not enough information. Is it built with 2x4 walls? 2x6? 2x8? 16 inch on centers? 24 inch on centers? Is there an attic? Trusses, flat roof with 2x10 rafters? If there is an attic you will be well insulated if you use blown-in cellulose. You will need about 300 cubic feet of blown in cellulose for an attic. If it's 2x10 rafters you will need about 336 square feet of 2x10 insulation blankets that are the width of the space between your rafters. If it's 24 inch on center rafters, you will need 24 inch blankets. You will need about 660 square feet of insulation for the walls, less the area of the doors and windows. Again, if it's 24 inch on center 2x6 walls, get the appropriate insulation blankets.
Is 24 on center acceptable spacing for studs and rafters?
no
How many roof rafters needed 16 on center on a 30' span?
23
What is the standard spacing of a roof rafter?
Rafters are 16" on center. Trusses are 24" on center. Or 450mm & 600mm australia
What is the spacing of roof rafters?
For wood framing it can be 16", 19 1/4" or 24 " on center.
How do you nail furring strips on 16 center on ceiling?
Put them in the opposite direction of the ceiling joists
What is the spacing on rafters in a mobile home?
Typical construction layout for mobile home floor joists is 24'' on center. Some older models may be laid out 48'' on center depending on type and size of floor joist used.Ans 2 - MOST mobile homes made since 1975 have 16" spacing of floor joists. Mine and many others I've seen are 16" spacing. -I've looked at and re-floored many.My ceiling rafters are also 16" spacing. - Never seen 24" spacing.
Are there any Insulation companies that blow insulation in exterior walls, for residental.?
Sustainable Resources Center does insulation like that Minneapolis, MN - (612) 870-4255
How many tons of gear hung from the rafters of the staples center during the 49th Grammy Awards show?
150 tons
A foreman asks if the floor and ceiling are parallel. He nails the center of a straight beam to the center of a post, then rotates the beam, and when it touches the ceiling, it touches the floor. How does this show that the floor and ceiling are parallel?
Yes Because, it's going the same way but without touching.
How do you assemble a ceiling fan?
Assembling a ceiling fan is really easy. First take it out of the box and place all the blades around the center of the fan. Then connect the whole unit to the ceiling with the wires.
What would be the length of the roof rafters on a 16x20 shed?
If you had a 4/12 pitch and the ridge was running the 20' direction and you were planning on a 12" overhang, your 2x6 rafters would be just shy of 9'-6" each. If your framing is 16" on center you will need 34 of them.
