What is a Roofing Square?
The term “roofing square” and “roof pitch” are the most commonly used terms in the roofing industry. 1 roofing square = 100 square feet. It does not matter how you arrive at 100 square feet
10 feet x 10 feet = 100 square feet or 1 roofing square
5 feet x 20 feet = 100 square feet or 1 roofing square
2 feet x 50 feet = 100 square feet or 1 roofing square
50 feet x 50 feet = 2500 square feet, so 2500 / 100 = 25 roofing squares
Bundles of roofing material per square
Most composition shingles are 3 bundles per square
Most of the 40yr composition shingles are 4 bundles per square (Some 5 or more)
Wood Shakes 5 bundles per square
Wood Shingles 4 bundles per square Roofing felt per square Roofing felt comes in a wide variety coverage’s.
Felts (Sqs per roll)
Some of more popular felts #15 lb felt; 4 squares per roll (Some 3 squares per roll)
#30 lb felt; 2 squares per roll
#30 lb 18″ shake felt 1 square per roll
Fiberglass base sheet 1 square to 3 squares per roll
Cap Sheet 1 square per roll
Modified bitumen 1 square per roll
Other roofing materials pieces per square
Roofing tiles have a vast difference in how many pieces per square
The more popular concrete tiles around 90 pieces per square
Clay 1-piece (or S Tile) about 80 to 100
Clay 2-piece 160 and up
—– Link from RoofGenius
Yes. Our slate experts have decades of experience for slate industry and marketing, they understand the slate markets around the world, climatic conditions, slate trends. Especially for very cold regions, what slate is appropriate, what size and thickness are acceptable, all of they would give customers right suggestion.
First of all you need to tell us what are your purpose for slate products, use in commercial or residential, interior or outerior, roofing slate tiles, flooring slate tiles, or wall stone veneer, size, thickness, shape, quantities of slates, which we can better serve your requirement. Slate industry is more customized, we have difficult to offer all prices of slate products.
You could download the pictures of slate products what you are interesting, then to send us per email, we will be easy to understand your request.
You are also better list your company, postal address, Tel and Fax number, we can use to calculate CIF prices and evaluate how to deliver our products to near discharge port.
Because of the time difference reasons, inquiry and reply will be spent one day at least, so you are hoped to promote communication efficiency. Our answer is even more specific and detailed if your request listed is more detailed. We encourage each enquiry list as specific as possible, integral, detailed description of request are welcome.
Yes, just specify your requirement. We usually supply 300*200*5-7mm for roofing slate, 200x200x10mm for flooring tile, normally our slate samples are free charge, but we would send the samples based on freight collect except for our long term partner, therefore, sometimes you’re requested to provide a collect account number of express courier, such as FedEx, DHL, TNT, UPS etc.
It depends on what you are buying, normally, our minimum order is one 20′ full container at least, we usually don’t accept order of LCL container (Less than a Container Load).
Westone usually devote to supply quality slate to bigger importers of its partners to avoid trivial operation of small request due to huge output. We encourage small trader and private customer buy from our distributor who locate your area if available. If there is not distributor in your area, we can directly supply.
Our standard payment term could be T/T (50% deposit, balance against copy of B/L) or irrevocable Letter of Credit at sight, L/C draft must to be confirmed by each other before slate order.
Within 10-45 days after receipt of your L/C or deposit according to your requirement. We usually deliver some roofing slate in 10 days because we have stocked great quantities in harbor warehouse, noremal size and variety always be dispatched quicly.
At Tianjin, Qingdao, Shanghai, and Xiamen Port, we could load the maximum gross weight of 24 tons in one 20’container. Therefore, how much stone you could load per 20′ container depends on the weight limit on the roads or railway of your country. The density of slate with wooden crate from 2750KGS per cubic meter. Therefore,
For America, the quantity per 20′ container load is as follows
3/8″ thickness: 6459 sq.ft.
3/4″ thickness: 3229sq.ft
1 1/4″ thickness: 2153 sq.ft.
1 1/2″ thickness: 1615sq.ft.
2″ thickness: 1292 sq.ft.
For most of the European countries and Middle East, the quantity per 20’container load is as follows
For each order, no matter it is small order or big order, we will have our Quality Inspectors to be responsible for quality testing of all stone raw materials and finished products. Each order will be followed and monitored from beginning to end by experienced QC inspectors to ensure quality standards and punctual delivery. In addition, we also welcome clients to monitor product quality by either personally visiting our production areas or employing third party independent inspection companies. Quality is the life of Westone. It is our principle that we will not ship any unqualified goods to our customers.
We usually load slate in one variety because great output. If diffirent color slate locat at near quarry, we can also load more colors in one full container.
Normally about maximum 2-3 colors. It is easier for us if you buy no more than 3 colors (say 2-3 colors) and we appreciate it. Especially for some differient quarry slates, it is very difficult to collect to be in one port, If you buy many colors for one container, it will make us inefficient and high cost.
Firstly, we try to ensure our website will be most ture and precise showing in all website of Chinese slate industry, so we list more pictures of stock slate in factory.
Secondly, the real slate of shipment matching with slate color in website pictures and samples very well. But for natural material, the slate mined from diffirent layer of quarries, time, season, temperature, rain and snow etc cause some little changing with pictures and samples. Westone is only responsible to slate quality, quantities, breaken except special clarified for a little bit different of color because nobody in slate industry will be sure for control color uniform.
We invested advertisements before 10 years ago, but now, we found the network of distribution in the world. Server existing clients well is our highest target.
Westone have good reputation in slate industry of European and American slate market yet; And we don’t want to conflict with our distriburos; And we concentrate on network of distribution in the world.
We usually compensate for our losses. yes, we do. Nobody can control all procedures in international trade. In our experience, many compensations are caused by crates fall down and breaken in container, we usually present Insurance to buyer, if consignee can bot get compensation from Insurance, we would like to be charge a part of losses. Westone happened very few fail of slate quality in great output in past years, we were responsible for all of responsibility after fairly discussion and proof.
The reason why our prices are reasonable, becauise you are directly buying from the one of biggest manufacturer and exporter for slate products in China. Quality, delivery and regular supply are assuring, all slates come from direct quarry and factory.