{"id":2399,"date":"2024-07-02T19:57:40","date_gmt":"2024-07-02T16:57:40","guid":{"rendered":"https:\/\/innfes.com\/vi\/what-rafters-are-needed-for-a-single-sided-roof\/"},"modified":"2024-07-02T19:57:40","modified_gmt":"2024-07-02T16:57:40","slug":"what-rafters-are-needed-for-a-single-sided-roof","status":"publish","type":"post","link":"https:\/\/innfes.com\/vi\/what-rafters-are-needed-for-a-single-sided-roof\/","title":{"rendered":"Nh\u1eefng chi\u1ebfc b\u00e8 n\u00e0o l\u00e0 c\u1ea7n thi\u1ebft cho m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t"},"content":{"rendered":"\n<p>Raffers \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e2y d\u1ef1ng m\u00e1i m\u1ed9t m\u1eb7t. C\u00e1c d\u1ea7m nghi\u00eang \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u00e8 l\u00e0 nh\u1eefng g\u00ec t\u1ea1o n\u00ean c\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0; H\u1ecd h\u1ed7 tr\u1ee3 m\u00e0ng m\u00e1i v\u00e0 ph\u00e2n ph\u1ed1i tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a n\u00f3 v\u00e0o c\u00e1c b\u1ee9c t\u01b0\u1eddng c\u1ee7a t\u00f2a nh\u00e0. Raffers ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111\u1eb7c bi\u1ec7t trong vi\u1ec7c h\u1ed7 tr\u1ee3 to\u00e0n b\u1ed9 c\u1ea5u tr\u00fac m\u00e1i c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t m\u00e1i nh\u00e0 \u0111\u01a1n ho\u1eb7c m\u00e1i nh\u00e0.<\/p>\n<p>Rafters th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf m\u1ed9t g\u00f3c v\u00e0 \u0111\u1ed9 d\u1ed1c xu\u1ed1ng t\u1eeb m\u1ed9t b\u00ean c\u1ee7a t\u00f2a nh\u00e0 sang b\u00ean kia trong m\u1ed9t thi\u1ebft k\u1ebf m\u00e1i m\u1ed9t m\u1eb7t. Cho d\u00f9 m\u00e1i che \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng c\u00e1c t\u1ea5m kim lo\u1ea1i, b\u1ec7nh zona hay m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u kh\u00e1c, nh\u1eefng chi\u1ebfc b\u00e8 n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 h\u1ed7 tr\u1ee3 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a m\u00e1i nh\u00e0. \u0110\u1ed9 d\u1ed1c c\u1ee7a ch\u00fang l\u00e0m cho n\u00f3 \u0111\u01a1n gi\u1ea3n cho tuy\u1ebft v\u00e0 n\u01b0\u1edbc m\u01b0a tr\u01b0\u1ee3t kh\u1ecfi m\u00e1i nh\u00e0, tr\u00e1nh s\u1ef1 t\u00edch t\u1ee5 n\u01b0\u1edbc c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn r\u00f2 r\u1ec9 ho\u1eb7c thi\u1ec7t h\u1ea1i c\u1ea5u tr\u00fac.<\/p>\n<p>K\u00edch th\u01b0\u1edbc v\u00e0 kho\u1ea3ng c\u00e1ch rafter c\u1ee7a m\u1ed9t m\u1eb7t m\u1ed9t m\u1eb7t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ed9t s\u1ed1 bi\u1ebfn, ch\u1eb3ng h\u1ea1n nh\u01b0 kho\u1ea3ng c\u1ee7a m\u00e1i nh\u00e0, tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt li\u1ec7u. \u1ede nh\u1eefng v\u00f9ng c\u00f3 gi\u00f3 ho\u1eb7c t\u1ea3i tuy\u1ebft l\u1edbn, b\u00e8 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t g\u1ea7n nhau h\u01a1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00e1i nh\u00e0 c\u00f3 th\u1ec3 duy tr\u00ec c\u00e1c l\u1ef1c n\u00e0y m\u00e0 kh\u00f4ng b\u1ecb s\u1eadp ho\u1eb7c ch\u00f9ng xu\u1ed1ng.<\/p>\n<p>\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i x\u00e1c \u0111\u1ecbnh c\u1ea9n th\u1eadn chi\u1ec1u d\u00e0i, g\u00f3c v\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft khi thi\u1ebft k\u1ebf m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t. Ngo\u00e0i vi\u1ec7c \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac, c\u00e1c b\u00e8 c\u00f3 k\u00edch th\u01b0\u1edbc c\u00e1ch \u0111\u1ec1u nhau v\u00e0 c\u00f3 k\u00edch th\u01b0\u1edbc c\u0169ng \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 an to\u00e0n l\u00e2u d\u00e0i c\u1ee7a m\u00e1i nh\u00e0. C\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng nh\u1eefng chi\u1ebfc b\u00e8 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 l\u1eafp \u0111\u1eb7t \u0111\u00fang cho nhu c\u1ea7u l\u1ee3p \u0111\u1ed9c \u0111\u00e1o c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch n\u00f3i chuy\u1ec7n v\u1edbi m\u1ed9t k\u1ef9 s\u01b0 k\u1ebft c\u1ea5u ho\u1eb7c nh\u00e0 th\u1ea7u l\u1ee3p m\u00e1i \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e9p.<\/p>\n<h2>C\u00e1c t\u00ednh n\u0103ng c\u1ee7a b\u00e8 cho m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t<\/h2>\n<p>H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi c\u00e1c nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n. M\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t ch\u1ec9 c\u1ea7n hai b\u1ee9c t\u01b0\u1eddng c\u1ee7a ng\u00f4i nh\u00e0 \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3. Gi\u1ed1ng nh\u01b0 c\u00f4 \u1ea5y thi\u1ebfu tr\u01b0\u1ee3t b\u0103ng, c\u00f4 \u1ea5y c\u0169ng thi\u1ebfu m\u1ed9t n\u00fat trung gian. \u0110i\u1ec1u n\u00e0y c\u00f3 ba hi\u1ec7u \u1ee9ng sau:<\/p>\n<ol>\n<li>Chi\u1ec1u d\u00e0i c\u1ee7a b\u00e8 c\u1ee7a m\u00e1i nh\u00e0 \u0111\u01a1n g\u1ea7n g\u1ea5p \u0111\u00f4i so v\u1edbi \u0111\u1ea7u h\u1ed3i.<\/li>\n<li>\u0110\u1ed9 d\u1ed1c c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t nh\u1ecf h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi b\u1ea5t k\u1ef3 m\u00e1i n\u00e0o kh\u00e1c c\u00f3 c\u00f9ng chi\u1ec1u r\u1ed9ng.<\/li>\n<li>Khi s\u1eafp x\u1ebfp h\u1ec7 th\u1ed1ng Rafter, c\u00e1c h\u1ed7 tr\u1ee3 trung gian h\u1ea7u nh\u01b0 lu\u00f4n lu\u00f4n c\u1ea7n thi\u1ebft: gi\u00e1 \u0111\u1ee1, ch\u00e2n trang tr\u00ed.<\/li>\n<\/ol>\n<p>Ngo\u00e0i ra, m\u1ed7i \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y \u0111\u1ec1u c\u00f3 t\u00e1c d\u1ee5ng.<\/p>\n<p>Chi\u1ec1u d\u00e0i m\u1edf r\u1ed9ng c\u1ee7a c\u00e1c d\u1ea7m t\u00ecm v\u00e0 mua g\u1ed7 x\u1ebb ph\u00f9 h\u1ee3p cho m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t l\u00e0 m\u1ed9t nhi\u1ec7m v\u1ee5 r\u1ea5t kh\u00f3 kh\u0103n. Ngo\u00e0i ra, ch\u00e2n rafter t\u1ed5ng h\u1ee3p \u0111\u00e3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u n\u1ebfu \u0111\u1ed9 d\u1ed1c l\u00e0 t\u00e1m m\u00e9t ho\u1eb7c d\u00e0i h\u01a1n.<\/p>\n<p>Tr\u1ecdng l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 c\u1ee7a b\u00e8 l\u00e0 m\u1ed9t t\u00e1c d\u1ee5ng ph\u1ee5 b\u1ed5 sung ngo\u00e0i nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y. M\u1ecdi th\u1ee9 v\u1ec1 \u0111i\u1ec1u n\u00e0y \u0111\u1ec1u \u0111\u01a1n gi\u1ea3n: kh\u1ed1i l\u01b0\u1ee3ng t\u0103ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi \u0111\u1ed9 d\u00e0i t\u0103ng trong c\u00f9ng m\u1ed9t ph\u1ea7n. Do \u0111\u00f3, l\u00e0m vi\u1ec7c v\u1edbi nh\u1eefng chi\u1ebfc b\u00e8 nh\u01b0 v\u1eady l\u00e0 kh\u00f3 kh\u0103n v\u00e0 \u0111\u00f4i khi kh\u00f4ng th\u1ec3 n\u1ebfu kh\u00f4ng s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/kakie-nuzhny-stropila-dlja-odnoskatnoj-kryshi_1.jpg\"><\/p>\n<p><strong>M\u1ed9t con d\u1ed1c nh\u1eb9 nh\u00e0ng h\u01a1n<\/strong> c\u0169ng d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1. \u0110\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i c\u00e0ng nh\u1ecf th\u00ec t\u1ea3i tuy\u1ebft tr\u00ean n\u00f3 c\u00e0ng cao. V\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0 h\u00e0ng ch\u1ee5c kg tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch. \u0110\u1ec3 m\u00e1i nh\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c tr\u1ecdng l\u01b0\u1ee3ng t\u0103ng l\u00ean, b\u1ea1n ph\u1ea3i t\u0103ng m\u1eb7t c\u1eaft ngang c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 c\u1ee7a h\u1ec7 th\u1ed1ng Rafter. H\u01a1n n\u1eefa, th\u01b0\u1eddng c\u1ea7n ph\u1ea3i t\u0103ng \u0111\u1ed9 d\u00e0y c\u1ee7a b\u00e8 c\u1ee7a m\u00e1i nh\u00e0 \u0111\u01a1n, v\u00ec chi\u1ec1u cao c\u1ee7a ch\u00fang \u0111\u00e3 r\u1ea5t. V\u00e0 khi l\u00e0m vi\u1ec7c \u0111\u1ec3 u\u1ed1n cong, s\u1ef1 t\u0103ng tr\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 d\u00e0y k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u so v\u1edbi t\u0103ng chi\u1ec1u cao. Do \u0111\u00f3, tr\u1ecdng l\u01b0\u1ee3ng l\u1edbn h\u01a1n c\u1ee7a c\u00e1c b\u00e8 \u0111\u1ed1i v\u1edbi m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t v\u00e0 c\u00e1c y\u00eau c\u1ea7u t\u0103ng l\u00ean \u0111\u1ed1i v\u1edbi kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c c\u1ee7a c\u00e1c b\u1ee9c t\u01b0\u1eddng v\u00e0 n\u1ec1n t\u1ea3ng h\u1ed7 tr\u1ee3.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/kakie-nuzhny-stropila-dlja-odnoskatnoj-kryshi_2.jpg\"><\/p>\n<p>C\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi thi\u1ebft k\u1ebf c\u1ee7a ng\u00f4i nh\u00e0 v\u00ec y\u00eau c\u1ea7u h\u1ed7 tr\u1ee3 trung gian. Gi\u00e1 \u0111\u1ee1 ph\u1ea3i \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi c\u00e1c c\u1ed9t ho\u1eb7c t\u01b0\u1eddng s\u1ebd gi\u00fap di chuy\u1ec3n tr\u1ecdng l\u01b0\u1ee3ng \u0111\u1ebfn n\u1ec1n t\u1ea3ng. Do \u0111\u00f3, c\u00e1c ph\u00f2ng r\u1ed9ng, r\u1ed9ng r\u00e3i kh\u00f3 kh\u0103n h\u01a1n \u0111\u1ec3 t\u1ea1o ra trong nh\u00e0 v\u1edbi m\u00e1i nh\u00e0.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/kakie-nuzhny-stropila-dlja-odnoskatnoj-kryshi_3.jpg\"><\/p>\n<p>Ch\u1eb3ng h\u1ea1n, h\u1ec7 th\u1ed1ng Rafter c\u00f3 hai b\u1ee9c t\u01b0\u1eddng \u0111\u1ed1i di\u1ec7n v\u00ec n\u00f3 ch\u1ec9 h\u1ed7 tr\u1ee3 khi s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 treo \u0111\u1ec3 l\u1eafp \u0111\u1eb7t Rafter trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t m\u00e1i \u0111\u1ea7u h\u1ed3i. Do \u0111\u00f3, c\u00e1c b\u1ee9c t\u01b0\u1eddng mang trong nh\u00e0 c\u00f3 th\u1ec3 kh\u00f4ng. Kh\u00f4ng c\u00f3 gi\u1edbi h\u1ea1n thi\u1ebft y\u1ebfu, v\u00ec v\u1eady b\u1ea5t k\u1ef3 s\u1ef1 s\u1eafp x\u1ebfp n\u00e0o c\u1ee7a khu v\u1ef1c sinh ho\u1ea1t \u0111\u1ec1u c\u00f3 th\u1ec3.<\/p>\n<h2>Nh\u1eefng chi\u1ebfc b\u00e8 c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t t\u1eeb<\/h2>\n<p>\u0110\u1ed1i v\u1edbi m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t, c\u00f3 b\u1ed1n lo\u1ea1i b\u00e8 kh\u00e1c nhau:<\/p>\n<ol>\n<li><strong>B\u1ea3ng<\/strong> &#8211; Kinh \u0111i\u1ec3n c\u1ee7a h\u1ec7 th\u1ed1ng Rafter. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ph\u1ea7n l\u1edbn c\u00e1c tr\u01b0\u1eddng h\u1ee3p.<\/li>\n<li><strong>G\u1ea1ch<\/strong> -hi\u1ebfm khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho b\u00e8 cho m\u1ed9t m\u00e1i m\u1ed9t m\u1eb7t do \u0111\u1ed9 d\u00e0y l\u1edbn. Nh\u01b0ng n\u1ebfu chi\u1ec1u cao t\u1ed1i \u0111a c\u00f3 th\u1ec3 c\u1ee7a c\u00e1c b\u1ea3ng (t\u1eeb g\u1ed7 c\u00f3 s\u1eb5n), th\u00ec \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c, \u0111\u00f4i khi b\u1ea1n ph\u1ea3i thay th\u1ebf ch\u00fang b\u1eb1ng g\u1ed7.<\/li>\n<li><strong>G\u1ed7 i -beams<\/strong> &#8211; V\u1eadt li\u1ec7u t\u01b0\u01a1ng \u0111\u1ed1i m\u1edbi, l\u00e0 hai lo\u1ea1i g\u1ed7 v\u1edbi m\u1ed9t t\u1ea5m OSB gi\u1eefa ch\u00fang. Chi\u1ec1u cao c\u1ee7a c\u00e1c d\u1ea7m nh\u01b0 v\u1eady \u0111\u1ea1t 450 mm v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng kho\u1ea3ng 5 kg\/m.P. \u0110\u00e2y l\u00e0 v\u1eadt li\u1ec7u t\u1ed1i \u01b0u cho c\u00e1c b\u00e8 c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t, nh\u01b0ng n\u00f3 c\u00f3 gi\u00e1 kh\u00e1 \u0111\u1eaft so v\u1edbi g\u1ed7 x\u1ebb th\u00f4ng th\u01b0\u1eddng.<\/li>\n<li><strong>Kim lo\u1ea1i \u0111\u00f4i -Barrels v\u00e0 c\u00e1c cu\u1ed9n kim lo\u1ea1i kh\u00e1c<\/strong>. Th\u00e9p n\u1eb7ng v\u00e0 \u0111\u1eaft ti\u1ec1n, nh\u01b0ng r\u1ea5t b\u1ec1n. Ngo\u00e0i ra, vi\u1ec7c s\u1eed d\u1ee5ng b\u00e8 kim lo\u1ea1i l\u00e0 c\u00e1ch duy nh\u1ea5t \u0111\u1ec3 kh\u00f4ng l\u00e0m h\u1ed7 tr\u1ee3 h\u1ed7 tr\u1ee3 trung gian trong c\u00e1c ng\u00f4i nh\u00e0 l\u1edbn. R\u1ed1t cu\u1ed9c, c\u00e1c trang tr\u1ea1i th\u00e9p ch\u1ec9 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng d\u1ef1a v\u00e0o hai \u0111i\u1ec3m.<\/li>\n<\/ol>\n<p>C\u00e1c v\u1eadt li\u1ec7u t\u1ed1t nh\u1ea5t cho nh\u1eefng ng\u00f4i nh\u00e0 nh\u1ecf h\u1ee3p l\u00fd v\u1edbi chi\u1ec1u d\u00e0i d\u1ed1c l\u00ean t\u1edbi 10 m\u00e9t12 m\u00e9t l\u00e0 b\u1ea3ng v\u00e0 ch\u00f9m tia.<\/p>\n<p>Trong \u0111i\u1ec1u ki\u1ec7n B\u1eafc C\u1ef1c, kim lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. L\u1ef1a ch\u1ecdn \u0111\u1ea7u ti\u00ean l\u00e0 x\u00e2y d\u1ef1ng c\u00e1c c\u1ea5u tr\u00fac r\u1ea5t nh\u1ecf, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u1ecdng l\u00e2u, nh\u00e0 \u0111\u1ec3 xe, t\u00e1n c\u00e2y v\u00e0 hi\u00ean. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, m\u1ed9t \u0111\u01b0\u1eddng \u1ed1ng h\u1ed3 s\u01a1 c\u00f3 gi\u00e1 h\u1ee3p l\u00fd h\u01a1n nhi\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng thay cho nh\u1eefng k\u1ebb thua cu\u1ed9c c\u1ed3ng k\u1ec1nh v\u00e0 t\u1ed1n k\u00e9m. T\u00f9y ch\u1ecdn th\u1ee9 hai bao g\u1ed3m c\u00e1c ng\u00f4i nh\u00e0 r\u1ea5t l\u1edbn, c\u00e1c m\u00e1i nh\u00e0 \u0111ang th\u1eed th\u00e1ch b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u thay th\u1ebf.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\"  src=\"\/wp-content\/uploads\/2024\/07\/kakie-nuzhny-stropila-dlja-odnoskatnoj-kryshi_4.jpg\"><\/p>\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u00f4i nh\u00e0 c\u1ee1 trung b\u00ecnh v\u00e0 l\u1edbn h\u01a1n, c\u00e1c ch\u00f9m I b\u1eb1ng g\u1ed7 l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi. Tuy nhi\u00ean, do s\u1ed1 l\u01b0\u1ee3ng nh\u00e0 s\u1ea3n xu\u1ea5t h\u1ea1n ch\u1ebf, h\u1ecd ch\u01b0a th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c \u1edf m\u1ecdi n\u01a1i c\u1ee7a Nga.<\/p>\n<blockquote><p>\n   Ch\u1ecdn nh\u1eefng chi\u1ebfc b\u00e8 th\u00edch h\u1ee3p l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft khi x\u00e2y d\u1ef1ng m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t. C\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac n\u00e0y c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a m\u00e1i nh\u00e0 v\u00e0 ph\u00e2n ph\u1ed1i n\u00f3 cho c\u00e1c b\u1ee9c t\u01b0\u1eddng ho\u1eb7c c\u1ed9t c\u1ee7a t\u00f2a nh\u00e0. C\u00e1c b\u00e8 ph\u1ea3i \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn c\u1ea9n th\u1eadn d\u1ef1a tr\u00ean \u0111\u1ed9 d\u1ed1c c\u1ee7a m\u00e1i nh\u00e0, kho\u1ea3ng c\u1ee7a c\u1ea5u tr\u00fac v\u00e0 c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a m\u00e1i nh\u00e0. Bi\u1ebft nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y c\u00f3 th\u1ec3 gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00e1i nh\u00e0 kh\u00f4ng ch\u1ec9 ch\u1ecbu \u0111\u1ef1ng \u0111\u01b0\u1ee3c th\u1eddi ti\u1ebft m\u00e0 c\u00f2n t\u0103ng c\u01b0\u1eddng di\u1ec7n m\u1ea1o v\u00e0 ch\u1ee9c n\u0103ng chung c\u1ee7a t\u00f2a nh\u00e0.\n  <\/p><\/blockquote>\n<h2>K\u00edch th\u01b0\u1edbc c\u1ee7a b\u00e8 cho m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t<\/h2>\n<p>Li\u00ean quan \u0111\u1ebfn k\u00edch th\u01b0\u1edbc Rafter \u0111i\u1ec3n h\u00ecnh, n\u00f3 gi\u1ed1ng nhau \u0111\u1ed1i v\u1edbi m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t \u0111\u00f4i nh\u01b0 \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i m\u00e1i kh\u00e1c. C\u00e1c bi\u1ec7n ph\u00e1p n\u00e0y 50 x 180, 50 x 200 v\u00e0 50 x 200 mm. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ea3ng d\u00e0y h\u01a1n (75 mm) \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c. Ngo\u00e0i ra, m\u1ed9t lo\u1ea1i g\u1ed7 c\u00f3 k\u00edch th\u01b0\u1edbc 100 x 150 mm, 100 x 200 mm, 150 x 150 mm, 180 x 180 mm v\u00e0 th\u1eadm ch\u00ed 200 x 200 mm \u0111\u00e3 c\u00f3 s\u1eb5n.<\/p>\n<p>Tuy nhi\u00ean, khi x\u00e2y d\u1ef1ng m\u1ed9t m\u00e1i nh\u00e0 \u0111\u01a1n gi\u1ea3n, t\u1ed1t h\u01a1n l\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c b\u1ea3ng n\u00e0o s\u1ebd s\u1eed d\u1ee5ng cho c\u00e1c b\u00e8 c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 \u0111\u01a1n h\u01a1n l\u00e0 t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c ph\u1ea7n ti\u00eau chu\u1ea9n.<\/p>\n<h3>T\u00ednh to\u00e1n m\u1eb7t c\u1eaft ngang c\u1ee7a b\u00e8 cho m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t<\/h3>\n<p>T\u1ed1t nh\u1ea5t l\u00e0 \u0111\u1eb7t h\u00e0ng k\u00edch th\u01b0\u1edbc rafter t\u1eeb m\u1ed9t nh\u00e0 thi\u1ebft k\u1ebf chuy\u00ean nghi\u1ec7p v\u00ec c\u00f3 th\u1ec3 kh\u00f3 t\u00ednh to\u00e1n cho m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t. V\u00ec v\u1eady, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t. Tr\u01b0\u1edbc h\u1ebft, v\u1edbi t\u01b0 c\u00e1ch l\u00e0 m\u1ed9t chuy\u00ean gia, nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 \u0111\u1ec1 xu\u1ea5t c\u00e1c gi\u1ea3i ph\u00e1p m\u00e0 b\u1ea1n kh\u00f4ng bi\u1ebft. Th\u1ee9 hai, anh \u1ea5y s\u1ebd th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n nhanh h\u01a1n v\u00e0 ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n<p>Nh\u01b0ng \u0111\u00e2y l\u00e0 thu\u1eadt to\u00e1n t\u00ednh to\u00e1n n\u1ebfu b\u1ea1n t\u1ef1 m\u00ecnh x\u1eed l\u00fd m\u1ecdi th\u1ee9:<\/p>\n<ol>\n<li>Ch\u1ecdn g\u00f3c \u0111\u1ed9 nghi\u00eang c\u1ee7a \u0111\u1ed9 d\u1ed1c m\u00e1i v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111i\u1ec3m c\u1ee7a b\u00e8 c\u1ee7a b\u00e8 &#8211; chi\u1ec1u d\u00e0i l\u00e0m vi\u1ec7c c\u1ee7a ch\u00e2n b\u00e8 <em>L<sub>T\u1ed1i \u0111a<\/sub><\/em>. N\u1ebfu c\u00e1c h\u1ed7 tr\u1ee3 \u0111\u01b0\u1ee3c l\u00ean k\u1ebf ho\u1ea1ch s\u1ebd \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, m\u1ed9t kho\u1ea3ng c\u00e1ch l\u1edbn h\u01a1n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. V\u00ed d\u1ee5, n\u1ebfu con b\u00e8 n\u1eb1m tr\u00ean gi\u00e1c m\u1ea1c, th\u00ec sau 6 m tr\u00ean gi\u00e1, v\u00e0 sau 9 m tr\u00ean Mauerlat c\u1ee7a b\u1ee9c t\u01b0\u1eddng th\u1ee9 hai, sau \u0111\u00f3 <em>L<sub>T\u1ed1i \u0111a<\/sub><\/em> s\u1ebd b\u1eb1ng 9 m.<\/li>\n<li>X\u00e1c \u0111\u1ecbnh t\u1ea3i kh\u00f4ng \u0111\u1ed5i tr\u00ean m\u00e1i nh\u00e0. \u0110\u00e2y l\u00e0 t\u1ed5ng s\u1ed1 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a chi\u1ebfc b\u00e1nh tr\u00ean m\u00e1i trong qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n l\u1ea1i 1 m 2 .<\/li>\n<li>Ch\u00fang t\u00f4i \u0111\u1ebfm t\u1ea3i bi\u1ebfn. \u0110\u00e2y l\u00e0 m\u1ed9t t\u1ea3i tr\u1ecdng gi\u00f3 v\u00e0 tuy\u1ebft, c\u0169ng nh\u01b0 ngu\u1ed3n cung c\u1ea5p d\u1ecbch v\u1ee5 m\u00e1i nh\u00e0. N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, cho tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a ng\u01b0\u1eddi s\u1ebd \u0111i tr\u00ean \u0111\u00f3. Ngo\u00e0i ra v\u1edbi t\u1ed1c \u0111\u1ed9 1 m 2 .<\/li>\n<li>Ch\u1ecdn m\u1ed9t b\u01b0\u1edbc c\u1ee7a b\u00e8 <em>M\u1ed8T<\/em>. Th\u00f4ng th\u01b0\u1eddng n\u00f3 \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb ph\u1ea1m vi t\u1eeb 0.8 m \u0111\u1ebfn 1.2 m \u0111\u1ec3 to\u00e0n b\u1ed9 s\u1ed1 ch\u00e2n rafter \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf \u0111\u1ed9 d\u1ed1c.<\/li>\n<li>G\u1ea5p c\u00e1c bi\u1ebfn c\u00f3 t\u1ea3i kh\u00f4ng \u0111\u1ed5i v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c t\u1ea3i t\u1ed5ng th\u1ec3 <em>Q.<\/em><\/li>\n<li>Ch\u00fang t\u00f4i chuy\u1ec3n t\u1ed5ng t\u1ea3i v\u00e0o khu v\u1ef1c th\u00e0nh m\u1ed9t t\u1ea3i tr\u00ean m\u1ed9t m\u00e9t chi\u1ec1u d\u00e0i c\u1ee7a b\u00e8 c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t <em>Q<sub>r<\/sub><\/em>. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo c\u00f4ng th\u1ee9c: <em>Q<sub>r<\/sub>= A \u00b7 q<\/em>.<\/li>\n<li>Ch\u1ecdn nh\u1eefng chi\u1ebfc b\u00e8 d\u00e0y nh\u01b0 th\u1ebf n\u00e0o cho m\u1ed9t m\u00e1i nh\u00e0 \u0111\u01a1n l\u1ebb, t\u1ed1t h\u01a1n l\u00e0 n\u00ean l\u00e0m. Tham s\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng ch\u1eef c\u00e1i <em>B<\/em> v\u00e0 th\u01b0\u1eddng b\u1eb1ng c\u00e1c gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n: 50 mm ho\u1eb7c 75 mm.<\/li>\n<li>N\u1ebfu g\u00f3c d\u1ed1c nh\u1ecf h\u01a1n 30 \u00b0, ch\u00fang t\u00f4i t\u00ednh to\u00e1n chi\u1ec1u cao c\u1ee7a ch\u00e2n rafter theo c\u00f4ng th\u1ee9c: <em>H<sub>T\u1ed1i thi\u1ec3u<\/sub>= 8.6 \u00b7 l<sub>T\u1ed1i \u0111a<\/sub><\/em><em>\u00b7 \u221a (qr\/(b \u00b7 r<\/em><em><sub>t\u00fap l\u1ec1u<\/sub><\/em><em>)).<\/em> Trong \u0111\u00f3 <em>R<sub>t\u00fap l\u1ec1u<\/sub><\/em> &#8211; Kh\u00e1ng chi\u1ebfn Bend, \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo B\u1ea3ng 3 t\u1eeb ph\u1ea7n 6 SP 64.13330.2017 &quot;C\u1ea5u tr\u00fac g\u1ed7&quot; ho\u1eb7c t\u1eeb c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c.<\/li>\n<li>V\u1edbi g\u00f3c \u0111\u1ed9 nghi\u00eang c\u1ee7a \u0111\u1ed9 d\u1ed1c 30 \u00b0 v\u00e0 chi\u1ec1u cao c\u1ee7a ch\u00e2n rafter, n\u00f3 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t c\u00f4ng th\u1ee9c h\u01a1i kh\u00e1c nhau: <em>H<sub>T\u1ed1i thi\u1ec3u<\/sub>= 9.5 \u00b7 l<sub>T\u1ed1i \u0111a<\/sub><\/em><em>\u00b7 \u221a (qr\/(b \u00b7 r<\/em><em><sub>t\u00fap l\u1ec1u<\/sub><\/em><em>))<\/em>.<\/li>\n<\/ol>\n<p>Ngo\u00e0i ra, chi\u1ec1u cao t\u1ed1i thi\u1ec3u c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m tr\u00f2n l\u00ean b\u1ea3ng ti\u00eau chu\u1ea9n g\u1ea7n nh\u1ea5t ho\u1eb7c k\u00edch th\u01b0\u1edbc g\u1ed7. \u01afa th\u00edch r\u1eb1ng ngu\u1ed3n cung c\u1ea5p t\u1eeb 100 \u0111\u1ebfn 150 mm.<\/p>\n<p>Sau khi t\u00ednh to\u00e1n ban \u0111\u1ea7u, k\u1ebft qu\u1ea3 th\u01b0\u1eddng kh\u00f4ng ch\u00ednh x\u00e1c. Ch\u1eb3ng h\u1ea1n, t\u00ednh to\u00e1n c\u00f3 th\u1ec3 ch\u1ec9 ra r\u1eb1ng b\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i b\u1ea3ng n\u00e0y. Qu\u00e1 tr\u00ecnh n\u00e0y sau \u0111\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng d\u1eef li\u1ec7u ngu\u1ed3n kh\u00e1c nhau, gi\u1ea3m b\u01b0\u1edbc c\u1ee7a ch\u00e2n rafter, th\u00eam c\u00e1c h\u1ed7 tr\u1ee3 trung gian h\u01a1n, l\u00e0m gi\u1ea3m \u0111\u1ed9 d\u1ed1c v\u00e0 thay \u0111\u1ed5i \u0111\u1ed9 d\u00e0y c\u1ee7a b\u1ea3ng.<\/p>\n<p>K\u00edch th\u01b0\u1edbc c\u1ee7a nh\u1eefng chi\u1ebfc b\u00e8 tr\u00ean m\u00e1i tr\u01a1n c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ec3 u\u1ed1n cong sau khi b\u1ea1n \u0111\u00e3 ho\u00e0n th\u00e0nh t\u1ea5t c\u1ea3 c\u00e1c t\u00ednh to\u00e1n v\u00e0 c\u00e1c b\u01b0\u1edbc. C\u00f4ng th\u1ee9c sau \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y:<\/p>\n<p>N\u1ebfu b\u1ea5t b\u00ecnh \u0111\u1eb3ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, t\u1ea5t c\u1ea3 nh\u1eefng n\u1ed7 l\u1ef1c c\u1ee7a b\u1ea1n \u0111\u00e3 th\u00e0nh c\u00f4ng. N\u1ebfu kh\u00f4ng, b\u1ea1n ph\u1ea3i \u0111\u1ebfm nh\u1eefng chi\u1ebfc b\u00e8 v\u00e0 s\u1eeda \u0111\u1ed5i c\u00e1c ti\u00eau ch\u00ed \u0111\u1ec3 l\u00e0m cho ch\u00fang nhi\u1ec1u h\u01a1n &quot;trung th\u00e0nh.&quot;<\/p>\n<h3>Chi\u1ec1u d\u00e0i c\u1ee7a b\u00e8<\/h3>\n<p>Khi s\u1eed d\u1ee5ng d\u1ea7m g\u1ed7 ch\u00f9m i, chi\u1ec1u d\u00e0i t\u1ed1i \u0111a c\u1ee7a b\u00e8 tr\u00ean m\u00e1i nh\u00e0 m\u1ed9t l\u1ea7n l\u00e0 12 c\u1ea7u14 m\u00e9t. V\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ec3 \u0111\u1eb7t h\u00e0ng theo th\u1eddi gian d\u00e0i h\u01a1n, nh\u01b0ng kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec1u cung c\u1ea5p d\u1ecbch v\u1ee5 n\u00e0y.<\/p>\n<p>N\u1ebfu g\u1ed7 ho\u1eb7c b\u1ea3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, chi\u1ec1u d\u00e0i kh\u00f4ng th\u1ec3 d\u00e0i h\u01a1n 8 \u0111\u1ebfn 9 m\u00e9t. Mua g\u1ed7 d\u00e0i h\u01a1n g\u1ea7n nh\u01b0 kh\u00f4ng th\u1ec3. V\u00ec chi\u1ec1u d\u00e0i ti\u00eau chu\u1ea9n th\u1eadm ch\u00ed c\u00f2n ng\u1eafn h\u01a1n 6 m\u00e9t, n\u00ean th\u01b0\u1eddng kh\u00f4ng th\u1ec3 ti\u1ebfn h\u00e0nh m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 h\u1ee3p nh\u1ea5t.<\/p>\n<p>Rafters th\u00e9p c\u00f3 th\u1ec3 l\u00e0 b\u1ea5t k\u1ef3 chi\u1ec1u d\u00e0i n\u00e0o; K\u1ebf ho\u1ea1ch ph\u00e2n ph\u1ed1i tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 t\u1ea3i tr\u1ecdng c\u1ee7a ch\u00fang l\u00e0 nh\u1eefng h\u1ea1n ch\u1ebf duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y l\u00e0 do c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i ch\u1ec9 h\u00e0n v\u1edbi nhau.<\/p>\n<table>\n<tbody>\n<tr>\n<td>Lo\u1ea1i Rafter<\/td>\n<td>Ch\u1ee9c n\u0103ng<\/td>\n<\/tr>\n<tr>\n<td>B\u00e8 ch\u00ednh<\/td>\n<td>C\u00e1c d\u1ea7m h\u1ed7 tr\u1ee3 ch\u00ednh ch\u1ea1y t\u1eeb s\u01b0\u1eddn n\u00fai \u0111\u1ebfn m\u00e1i hi\u00ean, mang t\u1ea3i tr\u1ecdng tr\u00ean m\u00e1i nh\u00e0.<\/td>\n<\/tr>\n<tr>\n<td>Tr\u1ea7n joists<\/td>\n<td>D\u1ea7m ngang k\u1ebft n\u1ed1i c\u00e1c b\u00e8, cung c\u1ea5p h\u1ed7 tr\u1ee3 c\u1ea5u tr\u00fac v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c b\u1ee9c t\u01b0\u1eddng lan r\u1ed9ng.<\/td>\n<\/tr>\n<tr>\n<td>Gi\u1eb1ng ch\u00e9o<\/td>\n<td>D\u1ea7m \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7ng c\u1ed1 b\u00e8, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn b\u00e8 trong qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 \u00e2m v\u00e0 ch\u1ee9c n\u0103ng c\u1ea5u tr\u00fac. C\u00e1c d\u1ea7m nghi\u00eang \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Rafter h\u1ed7 tr\u1ee3 m\u00e1i nh\u00e0 v\u00e0 ph\u00e2n ph\u1ed1i tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a n\u00f3 v\u00e0o c\u00e1c b\u1ee9c t\u01b0\u1eddng c\u1ee7a t\u00f2a nh\u00e0. M\u1ed9t s\u1ed1 lo\u1ea1i b\u00e8 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u cho m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t m\u00e1i nh\u00e0 \u0111\u01a1n ho\u1eb7c l\u1ee3p, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u1ed1c mong mu\u1ed1n v\u00e0 l\u00e0m r\u01a1i tuy\u1ebft v\u00e0 n\u01b0\u1edbc hi\u1ec7u qu\u1ea3.<\/p>\n<p>Rafters th\u00f4ng th\u01b0\u1eddng l\u00e0 thu\u1eadt ng\u1eef \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 t\u1ea3 c\u00e1c b\u00e8 ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t. Nh\u1eefng chi\u1ebfc b\u00e8 n\u00e0y k\u1ebft n\u1ed1i v\u1edbi c\u00e1c b\u1ee9c t\u01b0\u1eddng c\u1ee7a t\u00f2a nh\u00e0 t\u1ea1i c\u00e1c m\u00e1i hi\u00ean, l\u00e0 \u0111i\u1ec3m th\u1ea5p nh\u1ea5t tr\u00ean m\u00e1i nh\u00e0 (Ridge). Ch\u00fang r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh g\u00f3c c\u1ee7a \u0111\u1ed9 d\u1ed1c m\u00e1i, c\u1ea7n thi\u1ebft cho vi\u1ec7c tho\u00e1t n\u01b0\u1edbc k\u1ebft t\u1ee7a hi\u1ec7u qu\u1ea3. Rafters th\u00f4ng th\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 l\u00e0 khung c\u01a1 b\u1ea3n \u0111\u1ec3 l\u1eafp \u0111\u1eb7t m\u00e1i che v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean m\u00e1i nh\u00e0.<\/p>\n<p>Khi x\u00e2y d\u1ef1ng m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t, c\u00e1c y\u1ebfu t\u1ed1 b\u1ed5 sung nh\u01b0 gi\u00e1 \u0111\u1ee1 tr\u1ea7n v\u00e0 b\u1ea3ng s\u01b0\u1eddn n\u00fai c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ngo\u00e0i c\u00e1c b\u00e8 ti\u00eau chu\u1ea9n. \u0110\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c \u0111\u1ea7u tr\u00ean c\u1ee7a b\u00e8 chung v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ea5u tr\u00fac m\u00e1i nh\u00e0, c\u00e1c b\u1ea3ng s\u01b0\u1eddn ch\u1ea1y theo chi\u1ec1u ngang d\u1ecdc theo \u0111\u1ec9nh c\u1ee7a m\u00e1i nh\u00e0. \u0110\u1ed3ng th\u1eddi, c\u00e1c d\u1ea7m tr\u1ea7n l\u00e0 nh\u1eefng d\u1ea7m ngang n\u1ed1i v\u1edbi c\u00e1c b\u00e8 chung \u1edf \u0111\u1ea7u d\u01b0\u1edbi c\u1ee7a ch\u00fang, th\u00eam v\u00e0o s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 s\u1ee9c m\u1ea1nh t\u1ed5ng th\u1ec3 c\u1ee7a c\u1ee5m m\u00e1i nh\u00e0.<\/p>\n<p>Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a t\u1ea3i tuy\u1ebft d\u1ef1 ki\u1ebfn, lo\u1ea1i m\u00e1i che \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0 kh\u00ed h\u1eadu \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u1ec1u l\u00e0 nh\u1eefng c\u00e2n nh\u1eafc quan tr\u1ecdng khi thi\u1ebft k\u1ebf v\u00e0 l\u1eafp \u0111\u1eb7t b\u00e8 cho m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t. Ngo\u00e0i vi\u1ec7c \u0111\u1ea3m b\u1ea3o s\u1ee9c m\u1ea1nh v\u00e0 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i c\u1ee7a m\u00e1i nh\u00e0, c\u00e1c chi\u1ebfc b\u00e8 c\u00f3 k\u00edch th\u01b0\u1edbc c\u00e1ch \u0111\u1ec1u nhau v\u00e0 c\u00f3 k\u00edch th\u01b0\u1edbc.<\/p>\n<h2>Video v\u1ec1 ch\u1ee7 \u0111\u1ec1<\/h2>\n<h3>Rafters, t\u00e0o lao cho m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/CyGhgXI5ZDU\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n<h3>B\u00e8<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/qTgwVr34f0E\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n<h3>M\u00e1i \u0111\u01a1n -toe<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/TyiY7mT8xPM\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n<h3>C\u00e0i \u0111\u1eb7t h\u1ec7 th\u1ed1ng rafter c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t. X\u00e2y d\u1ef1ng m\u1ed9t ng\u00f4i nh\u00e0 khung c\u00f9ng v\u1edbi kh\u00e1ch h\u00e0ng.<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/dkv4EXAEPKw\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n<h3>C\u00e1ch s\u1eeda ch\u1eefa rafters m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/beZ8p0AREp8\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n<h3>M\u00e1i nh\u00e0 b\u1ecb ph\u00e1 h\u1ee7y. N\u00f3 \u0111\u00e3 ph\u00e1 v\u1ee1 h\u1ec7 th\u1ed1ng rafter<\/h3>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/-wXIvVmtGeU\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Raffers \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e2y d\u1ef1ng m\u00e1i m\u1ed9t m\u1eb7t. C\u00e1c d\u1ea7m nghi\u00eang \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u00e8 l\u00e0 nh\u1eefng g\u00ec t\u1ea1o n\u00ean c\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t m\u00e1i nh\u00e0; H\u1ecd h\u1ed7 tr\u1ee3 m\u00e0ng m\u00e1i v\u00e0 ph\u00e2n ph\u1ed1i tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a n\u00f3 v\u00e0o c\u00e1c b\u1ee9c t\u01b0\u1eddng c\u1ee7a t\u00f2a nh\u00e0. Raffers ch\u1ecbu tr\u00e1ch nhi\u1ec7m [&hellip;]<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-2399","post","type-post","status-publish","format-standard","","category-roofs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nh\u1eefng g\u00ec n\u00ean l\u00e0 b\u00e8 cho m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t<\/title>\n<meta name=\"description\" content=\"Kh\u00e1m ph\u00e1 h\u01b0\u1edbng d\u1eabn cu\u1ed1i c\u00f9ng tr\u00ean b\u00e8 c\u1ea7n thi\u1ebft cho m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t. T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c lo\u1ea1i, v\u1eadt li\u1ec7u v\u00e0 c\u00e2n nh\u1eafc thi\u1ebft y\u1ebfu \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u1ea5u tr\u00fac m\u00e1i \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ec1n b\u1ec9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/innfes.com\/vi\/what-rafters-are-needed-for-a-single-sided-roof\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nh\u1eefng g\u00ec n\u00ean l\u00e0 b\u00e8 cho m\u1ed9t m\u00e1i nh\u00e0 duy nh\u1ea5t\" \/>\n<meta property=\"og:description\" content=\"Kh\u00e1m ph\u00e1 h\u01b0\u1edbng d\u1eabn cu\u1ed1i c\u00f9ng tr\u00ean b\u00e8 c\u1ea7n thi\u1ebft cho m\u1ed9t m\u00e1i nh\u00e0 m\u1ed9t m\u1eb7t. 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