A typical 120 foot long roof edge with 6 12 overhangs and no gutters deicing will need about 291 feet of cable.
How much roof slate do i need.
One final point you may want to consider if you need to replace your slate roof is that getting the finished look of slate does not always mean paying for it.
To comply with the code of practice for control of condensation in buildings bs 5250 2011 a1 2016 and the nhbc roof vents should be installed at both the eaves and ridge level.
Slate stone roofing is the longest lasting material available and can last over 100 years with a proper installation.
So one hard or soft slate for each square foot of your house times 1 500 will be total cost of a new slate roof.
In the 21st century a number of alternatives made of everything from recycled rubber to ceramic offer a less expensive option that may last up to 75 years.
The square footage of a house is usually equivalent to the roof s square footage.
For example standing seam metal roofing is.
Tear off of old roof.
You would need 2 5 of these slate per linear metre.
Asphalt shingles have a total cost around 200 per square.
If you need to have an existing roof removed prior to installation expect to pay an additional 100 150 per square to have the existing shingles removed.
This is done by measuring from one outside edge of your roof to the opposite outside edge.
Measure the length of your roof.
The exact costs will vary depending on aesthetic choices and the vagaries of installation but expect a 2 000 square foot roof clad in asphalt shingles to run around 7 500 dollars and be prepared to pay between 25 000 and 35 000 for a natural slate covering.
Slate is also an extremely elegant option.
Asphalt shingles range in price from about 25 per bundle for a standard 3 tab style to around 50 75 or more for an upgraded architectural style.
That equals to 2 3kwh per hour or almost 56kwh per day of continuous operation.
How many slate roof vents do i need.
How many bundles of shingles will you need the average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
Determine the width of the metal you are installing.
As a guide a slate of 500 x 250 sizes uses a slate and half of 500 x 375.
How to figure how much metal roofing you need.