Documents

Explains CRI’s Seal of Approval program, which certifies carpet cleaning products and equipment for performance. Details testing criteria for solutions, vacuums, extractors, and systems. Describes rating levels (Platinum, Gold, Silver, Bronze) and benefits for consumers and warranties.

Comparison of carpet vs. VCT in school facilities over a 22-year life cycle. Details labor/chemical assumptions, maintenance schedules for light/medium and heavy traffic, and per‑sq‑ft costs. Finds higher cleaning time and costs for VCT; despite lower initial install, VCT’s total life‑cycle cost exceeds carpet.

Overview of carpet acoustics and test metrics (NRC, STC, IIC/INR). Lab programs show cut piles and carpet over cushion increase sound absorption (higher NRC) and reduce impact noise vs. hard floors on concrete and wood assemblies; references ASTM C423, E90, E989, and E492.

CRI technical bulletin summarizing ADA carpet requirements: max 1/2 in pile height (to backing); level or loop textures with firm backing; cushions/pads must be firm and securely attached; carpet must be fastened to prevent buckling; exposed edges require trim and beveled transitions where needed; limits for openings and changes in level on accessible routes.

Technical bulletin on antimicrobial carpet treatments: EPA regulation and Treated Articles Exemption (PR Notice 2000‑1) limit claims to protection of the article; no carpets are EPA‑registered finished articles. References AATCC 174 and ASTM E2471 test methods; CDC HICPAC (2003) notes such treatments don’t replace routine maintenance and moisture control.

Technical bulletin defining average pile yarn density per HUD/FHA UM‑44d: D = 36W/(t or T), where W is pile yarn weight (ASTM D5848), t is average pile thickness (ASTM D6859/D7241), and T is tuft height for textures F & G (ASTM D5823). Notes proper lab measurement vs. informal ‘dip stick’ and ±7% weight tolerance.

One‑page guidelines for fiber/backing identification printed on carpet backs. For broadloom: print fiber code every 4 ft across width and repeat every 6 ft along length. Provides fiber codes (e.g., N6, N66, PET, PP, PTT, W, O) and blend rules; for carpet tile, print fiber and backing codes on ≥25% of production, with backing codes (BIT, PP, PET, PVB, PVC, UR, O).

Consumer Care Guide: vacuum frequency and SOA‑certified equipment, 12–18 month restorative cleaning, spot removal procedures and solutions, precautions for wet cleaning, and troubleshooting (matting, buckling, filtration soiling). Includes notes on natural fibers and professional cleaning.

Guidance on using carpet over radiant/heated floors: consider total R‑value of carpet+cushion (many manufacturers recommend ≤4.0). Lower pile and thinner cushions improve efficiency. Georgia Tech study indicates R‑value correlates with total thickness; approximate R by thickness(in)×2.6 and add R‑values across layers. Includes installation tips for adhesives and avoiding fasteners hitting tubing; confirm backing tolerates continuous low heat.

Explains carpet’s role in IAQ: carpet is a low VOC emitter with emissions typically dissipating within 48–72 hours with ventilation. Describes CRI’s Green Label Plus programs for carpet, adhesives, and cushion, based on chamber testing (ASTM D5116) and criteria aligned with CA 01350; quarterly monitoring. Notes carpet’s dust‑holding benefits and maintenance practices to support IAQ.

Technical bulletin describing carpet beetles (anthrenus, attagenus) and life cycle; notes synthetic carpet fibers are not a food source and wool is typically insect‑resist treated; recommends licensed pest control for infestations and verifying treatments won’t discolor carpet.

Guidance for clubhouse carpet installations permitting only soft spikes. Discusses wear resistance, installation practices, and maintenance considerations to ensure durability and compliance with footwear policies in golf and sports facilities.

CRI has looked at several studies that compare initial cost, plus installation and maintenance. These studies are based on school installations where wear is constant and hard, and where the recommended maintenance procedures have been used and the appropriate commercial carpet and commercial vinyl composition tile (VCT) products were selected at the time of installation.

Comprehensive troubleshooting guide for carpet maintenance issues including matting, buckling, filtration soiling, and recurring stains. Provides cleaning techniques, equipment recommendations, and preventive strategies for long-term carpet care.

Maintenance guide for carpet in school facilities, covering vacuuming schedules, spot cleaning, restorative methods, and equipment recommendations. Emphasizes traffic levels, cleaning frequency, and use of CRI Seal of Approval products for optimal performance and longevity.

Bulletin on carpet use over concrete balconies. Discusses concrete deterioration factors (salt, rebar depth), importance of sealing, and why outdoor carpet is practical for slip resistance and aesthetics. Notes carpet is easier to inspect than tile and does not accelerate decay if concrete is sealed.

Technical bulletin on causes and prevention of carpet wrinkles, buckles, and bubbles. Emphasizes acclimation, mandatory power stretching (1–1.5%), correct cushion thickness, proper tack strip specs, and adherence to CRI 104/105 installation standards. Notes humidity and wet cleaning effects.

Literature review assessing links between carpet, asthma, and allergies. Concludes carpet VOCs are low/short‑lived, carpet tends to sequester particulates vs. hard floors, and epidemiology shows no increased asthma/allergy risk from carpet; emphasizes moisture control and proper maintenance.

Comprehensive review of research on carpet cleaning and IAQ. Summarizes Denver, FPG, and school studies showing hot water extraction reduces bio-pollutants, VOCs, and allergens. Highlights cleaning protocols, green maintenance, and mold prevention under high humidity.

This study examined two non-problem elementary schools in North Carolina that were well-matched for all attributes other than floor covering type, over an entire school year.