Cup – How to Buy It
A home owner can get a lot for his money or a little when he buys glass for windows, doors or even partitions. But if he knows which glass will do what, and how to purchase it, he won’t pay double or triple prices for dish glass when he could have used large sheet glass, nor will he or she waste money by ordering glass by the sheet when he could have used a case.
Window glass, also called sheet cup, is the most commonly used in the house. In fact before glass walls and picture windows were used it was usually the only kind. It comes in two thicknesses, individual strength and double strength; and in two qualities, A and B.
Grades A and B differ only in the number of small defects and waves. However , the difference is just not ordinarily noticeable, and many dealers no longer even stock A quality because they do not believe that it is worth a 25 % premium.
Whether to use single or double strength depends mainly upon window size. A good rule to follow is to use double strength for anything over about two feet square. How large can double strength cup be? If winds don’t go beyond 70 m. p.
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h., dual strength glass may be used in dimensions up to 38″x48″, or 34″x72″.
The next price jump to crystal sheet or plate glass is very razor-sharp. If you want a window wall consider the likelihood of working it out using the pointed out dimensions of double strength rather than plate glass. This can be most appealing and at about one-fourth the cost. Proceed right across the room with 30″x72″ double-strength glass placed vertically. The distance of approximately 30″ to the floor can be simple wall or used for built-in bookcases, cabinets or ventilating louvers.
Buying window glass by case is one way to save money. Glass by the case doesn’t cost much more than half as much as by the page. It’s also easier to handle. At affordable prices you can afford to use cup liberally in anything you build or even remodel or enclose. And, buying by the case does not mean you’re stockpiling it for years to come. Usually an instance of window glass is whichever number of sheets comes nearest in order to totaling 50 square feet. Cases of very large sheets contain one hundred square feet.
Crystal sheet, which is heavy window glass of good quality, is the economical thing to buy once the opening is too big for double strength.
Plate glass, which is refined to optical perfection, may be 1/8″ thick or for a big watch window, 1/4″ thick. If you have a long-distance view through your window, you will require plate glass. Otherwise you can use crystal sheet; for short distances you will never notice the slight waviness.
For plate and usually crystal sheet, in sizes too big for you to handle plus too expensive for you to risk breaking, you must figure on paying a higher installed price, which includes an expensive labor cost.
Heat-absorbing plate glass, while no substitute for air conditioning, does screen out there approximately 29% of the sun’s high temperature. It is used in west windows of seaside homes, as well as in car windows. It costs about 5/2 times as much as regular plate glass.
Obscure glass is used where you want light but no visibility. For instance , a wall of it might be just the thing for a basement recreation area where part of the basement is used being a garage or workshop. For this you would need the thick kind, say 3/8″. Thinner figured glass acts for entrance panels, cupboard doorways and shower enclosures.
Transparent mirror glass is often used for one-way vision in entrance doors. Ready-made it is extremely costly, but a glass dealer who else makes mirrors can usually get ready it for you at about half the price.
Insulating glass is the modern, superior replacement for ordinary windows plus thunderstorm sash. Like any insulation, it usually pays for itself over the years in gas savings as well as comfort. It contains two or three panes sealed in models, with air spaces between the glass. A typical double glazed unit provides two sheets of 1/4″ dish glass with a 1/2″ air space in between. Originally all insulating units were made of plate glass, but it has become made in window glass as well. Until you need large windowpanes, you can save regarding one- third by using the window cup kind.
In the large of building materials, glass blocks position as one of the most versatile. They can be used for exterior as well as interior walls or even for partition walls that do not really go entirely to the ceiling.
Cup blocks provide light plus privacy. They come in many sizes and shapes and you can find special blocks made to control the sun. Furthermore, glass blocks are easy to maintain and special units are available to give ventilation through glass block wall space.
Glass blocks can be installed within a wooden frame or in a mattress of mortar. Once you understand how to arranged class blocks in mortar : a project you might want to undertake to replace a current basement window with glass prevents – then you will be able to handle cup blocks within a frame inside the house. Literature on interior framing of glass blocks is readily available from cup block manufacturers.
How to Work with Cup Block
The proper mortar materials and mix are important whether for lounging bricks or glass blocks.
The appropriate mortar materials are Portland cement, hydrated lime, sand, water, plus waterproofing compound. The addition of an integral water-proofer of the water-repellent type is an added measure to insure watertight important joints. Manufacturer’s specifications concerning the use of this particular material should be followed very carefully. Where a waterproof masonry mortar is used, no additional water-proofer should be added to the mix. For better results, accelerators and antifreeze compounds should not be used.
The accurate dimension of materials is important. Generally the 1-1-4 mortar mix is adequate. However , reasonable variations from the combine are permitted and allowable limitations are covered by manufacturer’s specifications.
The consistency of the mortar mix has a direct bearing on the strength and weather-proof ness from the joints. Since glass blocks have no suction like bricks, the mortar must be drier… it should not stream or have too much slump. Too moist a mix makes it extremely difficult to get proper alignment of block important joints, and cleaning time is significantly increased. The mix should he or she not too dry, not as well wet, but just right. Here is a valuable thing to remember: Do not re-temper mortar after the ¡niti. il set has taken place.
SECTIONS OF GLASS BLOCK 35 SQ . FT. OR LESS
In this kind of construction the maximum area is thirty-five square feet with maximum thickness 5′ and height 7′. The general practice is to use an expansion space at the side jambs of all cup block panels. However , for small panels as illustrated here the blocks can be mortared in solid at the side jambs. It is necessary, however , to keep a finger space among brick withes about 3/4″ serious. This allows the mortar to key in at jamb and secure board.
Glass block panels, regardless of area or size, are nonload having and require space at the head to take care of expansion and lintel deviation.
PANELS OF GLASS BLOCK AMONG 25 AND 100 SQ . FEET.
Where it is desirable to show the full face of the block panel, chases cannot be used for lateral support. Proper support can be obtained by using wall anchors if the area is not over hundred square feet and neither board dimension is over 10′. The wall structure anchors should be spaced 24″ apart – and occur in the exact same joint as the wall tie. To permit free movement of the panel, the particular anchors are crimped or curved in the expansion space. As an area for calking must be provided, a standard expansion strip is easily cut in order to 3″ width to be inserted between your anchors with gobs of concrete emulsion. Local code authorities in certain areas may restrict the use of wall anchor construction.
It is used to cut glass to size. Usually, a glass cutter has a small rotary wheel or gemstone set in the handle.
There are also glass cutting bits for drilling openings in glass. These special bits require the use of a lubricant while trimming. It is best to make a ‘well’ or ‘dish’ around the spot to be drilled by using putty to form the walls. After that pour a little turpentine or essential oil into the ‘dish’ to lubricate the particular bit while it is cutting with the glass.
While you may usually buy glass cut in order to size, there are times when it is necessary to cut the glass yourself. When you watch a specialist cut glass, it looks simple enough. Well, here’s how to reduce glass like an expert.