It really depends on the style, height, and pitch of the roof. A traditional shingled gable roof with a relatively low pitch may cost about $2-5 per square foot (yes there are 3 bundles in a square, so a 3000 square foot surface area roof will take approximately 30 squares, or 90 bundles). For a recent job I did in the DFW area, the homeowner's insurance paid about $2 per square foot (or $50 per square)... low pitch & simple roof-lines. If the roof is steep (which should be less common in Texas since it does not snow often, but I think homeowners find the steep pitch visually appealing), has more hips, ridges, valleys, is on a 2-story house etc., it can cost considerably more. Hope that helps
You can get bids from roofers; this would be a good step. Roofing materials vary; the most common is asphalt shingles. Go for the 25 year rated instead of the 20 year. Guarantees don't mean much but the higher guarantee indicates a heavier-duty product. Guess: $50-100 per square (100 square feet; covers 10'x10' area). This will depend a LOT on how complicated the roof is. If you need sheathing (like plywood) replaced, guess $75 for each 4x8 sheet, installed. This does not have to be done unless rotted or something. If needed, though, don't skimp here. Roofs take maintenance and you don't want to fall through the roof in the future. Tearoff: If an existing asphalt shingle roof has 3 layers of shingles, you need to tearoff the old shingles before putting new on. This bid should include taking away all materials to the dump. Guess: $40 per 100 square feet. If you need new sheathing, then you will have to have a tearoff regardless. Quality counts with roofing! Its expensive, but critical to get a good quality job.
320 square meters = 3,444 square feet.
800 square meter = 8,611.128 333 4 square foot
96 square feet are 10.666667 square yards.
800 square meters is an area equal to 8,611.1 square feet.
There are 3 bundles of shingles in every square. A square is 100 square feet. In 23 bundles, you would have 766 square feet approximately
No dimensional shingles require 4 bundles per square
3 bundles per square on average. So 3.5 square is 10 bundles.
A subcontractor. Bidding a roof by the square is just the way it is done. Just a way to measure it.
1 square of roofing shingles is 3 bundles of shingles equaling 63 shingles per square.
If your shingles say they cover 3 bundles to a square ( 10'x10' or 100 sq. ft) then one and a half. Some thicker, heavier shingles are 4 bundles to a square so you'd need 2.
Standard fiberglass shingles come 3 bundles to the square.
3
21
20 year = 4 to a square. 30 year = 3 to a square. Most 20 year are also 3 bundles per square
9 bundles assuming std. 3 bundle/sq. shingles
There are 3 bundles in a square if you are using 3 tab. 4 bundles if you are using Architectural.