Document RaD8q5QyykDJnB6KDRa8gJOXz

Insulation IIxtSil'tlcLeJi KIMSUL I ^xpaMifony $lanhei 'jf)3li3i!,aTr'oj1 KIMBERLY-CLARK CORPORATION ESTABLISHED tB72 Building Insulation Division 8 South Michigan Avenue, Chicago, Illinois MANUFACTURERS OF STITCHED EXPANDING BLANKET INSULATION NEENAH, WISCONSIN KIMSUL* is a wood fiber product manufactured by the KIMBERLYCLARK CORPORATION, who have been making wood fiber products since 1872. KIMSUL is produced in long, contin uous flexible blankets, composed of many creped layers or plies, providing a maxi mum number of dead air cells. The finished blanket is firmly stitqhed, assur ing a durable, yet completely flexible blanket of high insulation efficiency, which is easy to handle and install. KIMSUL is delivered in cartons con taining sufficient KIMSUL to insulate250 sq ft in Commercial thickness; or 125 sq ft in Standard thickness; or 833^ sq ft in Double-Thick. PHYSICAL PROPERTIES 1. Thermal Efficiency--KIMSUL'S conductivity is .27 Btu hr/sq ft/F/inch (J. C. Peebles)--one of the most efficient heat "Blockaders" developed. This con ductivity is at the extremely low installed density of 1.57 lb per cu ft . . . installed density maintained by stitching. for Shipment UNIQUE PROPERTIES OF EXPANSION AND STITCHING Expandability--Delivered to a job in a compressed form, each blanket of KIM SUL, when installed, is expanded to about 5)4 times its original length without decreasing the intended thickness or lessen ing 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 fit snugly between studding and rafters--little measuring or fitting is neces sary. Using shipping carton as a dispensing container, the end of KIMSUL blanket is nailed on at the top--blanket expanded and attached at bottom--then cut off. That is all there is to it. Stitching Controls Efficiency and Permanence--Each blanket of KIMSUL, before being compressed, is stitched its entire length with rows of twine approxi mately 20 times stronger than necessary to support its entire weight. This prevents KIMSUL from being expanded beyond its most efficient density. It also prevents sagging and helps to hold KIMSUL in place permanently. Reg. U. S. & Can. Pat. Off. 2. Flexibility--Flexible as a blanket, KIMSUL fits snugly. It can be tucked behind wire and piping, moulded to the shape of non-standard-sizeopenings, pulled over or around corners, and packed into cracks, around doors and window frames. 3. Permanence--KIMSUL is inherently permanent because it is made of chemically purified wood fibers and asphalt--its last ing qualities are improved by its processing. 4. Will Not Shred or Sift--Each blanket of KIMSUL is composed of many creped layers or plies, strongly stitched together. The fibers are fastened fCimberly'Clark Corporation Insulation KIMSUL PtetdiiclteJl BLANKET INSULATION >. /^PHYSICAL PROPERTIES--Cont. 5. Moisture and Fire Resistant--KIM SUL resists water and fire. Even when exposed to flame temperature of 2000 F KIMSUL merely chars. It does not pro duce spontaneous combustion. 6. 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 lb. 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 neces sary 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 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 re ducing heat flow varies somewhat, depend ing on type of structure insulated. The Figure at lower left shows relationship between insulation 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, I 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 insu lation is responsible for stopping only an additional 11 per cent. If wall thick insulation is used, total heat stopped is 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 percent of all the heat that can be stopped by insulation. So it is evident that it is the first inch which does the most work. Graph shows how effectively KIMSUL reduces heat flow through typical frame struct ures. Note that greatest pro portion of heat losses are stopped 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. 1043