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Insulation
KIMBERLY-CLARK CORPORATION
ESTABLISHED 1872
Building Insulation Division
Neenah, Wisconsin
A Product of
KIMBERLY-CLARK CORPORATION
KIMSUL*, manufactured by the kimberlyCLARK CORPORATION, is a wood fibre prod uct, made in long, flexible blankets com posed of many creped layers or plies, pro viding a maximum number of dead air cells for efficient insulation. Being flexible and extremely light in weight, it is mar velously easy to install. Each, blanket is stitched with rows of strong twine running the length of the blanket. This unique feature holds the kimsul blanket securely in place--prevents sagging or "packing down" inside the walls.
kimsul is delivered in cartons contain ing sufficient kimsul to insulate 250 sq-ft in Commercial thickness; or 125 sq ft in Standard thickness; or 83% sq ft in Double Thickness.
ing. To apply kimsul to side walls; using shipping carton as a dispensing container, the end of kimsul blanket is nailed to top plate--blanket expanded and attached at bottom--then cut off. That is all there is to it.
Stitching Controls Efficiency--Each blan ket of kimsul, before being compressed, is stitched its entire length with rows of twine approximately 20 times stronger than necessary to support its entire weight. This prevents kimsul from being expanded beyond most efficient density, prevents sagging, and holds kimsul securely in place.
PHYSICAL PROPERTIES
1. Thermal Efficiency--kimsul's conduc tivity is 27 Btu hr/sq ft/F/inch (J. C. Peebles)--one of the most efficient heat "Blockaders" developed. This conductivity is at the extremely low installed density of 1.57 lb per cu ft . . . which density is maintained by the stitching feature.
2. Flexibility--Flexible as a blanket, kimsul fits snugly. It can be tucked behind wire and piping, moulded to the shape of non-standard-size openings, pulled over or around corners, and packed into cracks, around doors and window frames.
UNIQUE PROPERTIES OF EXPANSION AND STITCHING
Expandability--Delivered to a job in a compressed form, each blanket of kimsul, when installed, is expanded to about 5M5 times its original length without decreas ing the intended thickness or lessening its heat-stopping ability.
Speeds Work -- Lowers Cost--Because kimsul is delivered in compressed form it is easier to handle; storage costs are reduced--and it goes up quickly.
kimsul blankets are made in widths to exactly fit standard widths of stud spac1
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Kimberly'Clark Corporation
Insulation
FOR GREATER COMFORT . . . SUMMER AND WINTER
KIMSUL INSULATION
The fibres are fastened to one another in each ply to form a strong yet flexible web.
4. Moisture and Fire Resistant--kimsul resists water and fire. Even when exposed to flame temperature of 2000 F. kimsul merely chars. It does not produce spon taneous combustion.
5. Lightness--At Standard Thickness (1 in.) kimsul has an installed density of 1.57 lb per cu ft. Installed, 1000 sq ft of it weighs only 131 lbs. Thus kimsul adds relatively little weight to structural load of a building.
PROPER THICKNESS FOR AVERAGE REQUIREMENTS
To calculate what thickness of insulation will provide the desirable balance between costs and the benefits produced, it is nec essary to have information concerning the specific job. The severity of the climate, the price of the fuel to be used are im portant considerations.
In most cases, however, it will be found that the standard one-inch thickness of kimsul is not only sufficient but that this thickness stops the greatest proportion of
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heat losses in winter, and the greatest proportion of heat infiltration in summer, at the least cost.
HEAT LOSSES THROUGH
WALLS, ATTICS AND ROOFS
The effectiveness of kimsul in reducing heat flow varies somewhat, depending oh type of structure insulated. The figure at lower left shows relationship between in sulation thickness and the heat stopped, expressed as per cent of heat flowing through an uninsulated structure.
Note that depending upon the structure insulated, the per cent of heat stopped by Standard Thick kimsul varies from 54 per cent to 77 per cent.
When a normal-frame wall is considered, 1 in. of kimsul stops 54 per cent of heat which would be lost through the uninsu lated wall. By adding another inch of thickness this percentage is increased to 65 per cent--so the second inch of insula tion is responsible for stopping only an additional 11 per cent. If wall thick insu lation is used, total heat stopped in only increased to about 73 per cent.
Looking at it another way--by taking the maximum heat stoppage through wall insulation as 100 per cent -- 1 inch of kimsul stops 74 per cent of all the heat that can be stoppnd by insulation.
So it is evident that it is the first inch which does the most work.
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Graph shows how effectively KIMSUL reduces heatflow through typicalframe structures. Note that greatest proportion of heat losses ore slopped by the first inch of KIMSUL.
It must, however, be borne in mind that stopping 75 per cent of the heat losses, by insulating walls and roof, does not mean a fuel savings of a like amount. Usually half of the wall area--is made up of doors and windows and heat losses through them must also be considered.
Reg. U. S. & Can. Pat. Off.