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4/12 pitch is a 40 × 30 ft roof. The roof pitch is measured in squares of 100 square feet, and asphalt shingles come three bundles to the square. A waste allowance covers cuts, ridges, hips and starter courses. A waste allowance covers cuts, ridges, hips and starter courses. A waste allowance covers cuts, ridges, hips and starter courses. A 4/12 pitch is a 40 × 30 ft roof. The roof pitch is measured in squares of 100 square feet, and asphalt shingles come three bundles to the square. A 4/12 pitch is a 40 × 30 ft roof. A 4/12 pitch is a 40 × 30 ft roof.Worked example: A 40 × 30 ft
Tambayoyi da ake yi da yawa
Mẽne ne kwance na rufi?
A square ne 100 square feet na rufi surface - da standard unit roofers da masu kaya quote a. A 2,000 sq ft rufi surface ne 20 squares.
Ta yaya tsayin rufi ke canza yawan kayan aiki?
A steeper pitch means more actual surface over the same footprint. A 4/12 roof is about 5% larger than the flat footprint; a 12/12 roof is about 41% larger. The pitch field applies the exact √(rise²+144)/12 multiplier.
Menene yawan kwasfa na kwano a cikin kwance?
Standard three- tab and architecture asphalt shingles are three bundles per square. Heavier designer shingles can be four or five, which you can set under advanced options.
Yadda za a gano ni da rufin rufi?
Yi gwajin yawan inci da rufin ya tashi a kan wani mataki na 12-inch - riƙe wani mataki daga rufin da aka raba a tsaye kuma ka yi gwaji zuwa ƙasa zuwa ga fuskar a kan alamar 12-inch. Matsakaicin girman inci 4 shine 4/12. Mafi yawan gidaje suna faɗuwa tsakanin 4/12 da 9/12.
"Da yawa ne ƙuƙumma na ƙanƙara zan buƙata dõmin rufin gidanka?"
An yi amfani da wannan tsari wajen samar da wani nau'in kwalliyar da za'a iya amfani da ita wajen yin kwalliyar da aka yi da kayan kwalliyar da aka yi da su.
Shin, wannan ma'aunin ya daidaita da fadin ginin gidan da nake zaune?
Wannan shi ne yankin ƙasa da rufin ke rufewa, an auna zuwa gefen waje da ya ƙunshi dakunan da ke sama da ƙasa, ba yankin cikin ƙasa ba. Don rufin daki mai sauƙi wanda ke kusa da siffar gini; a auna zuwa gefen da ke ƙasa, sa'an nan kuma a bar mai yawatar tsayi ya kula da tsayin.
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QDialogButtonBox
GET https://calculator.free/api/v1/roofing/curl
curl "https://calculator.free/api/v1/roofing/?length=40&width=30&pitch=4"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/roofing/?" + new URLSearchParams({
"length": "40",
"width": "30",
"pitch": "4"
}));
const data = await r.json();
console.log(data.results);@ action: inmenu