Investor PresentationAugust 2019

Forward Looking Statements and Non-GAAP Measures This presentation contains forward-looking statements, including, in particular, statements about Interface’s plans, strategies and prospects. These are based on the Company’s current assumptions, expectations and projections about future events.Although Interface believes that the expectations reflected in these forward-looking statements are reasonable, the Company can give no assurance that these expectations will prove to be correct or that savings or other benefits anticipated in the forward-looking statements will be achieved. Important factors, some of which may be beyond the Company’s control, that could cause actual results to differ materially from management’s expectations include the matters discussed under the heading “Risk Factors” included in the Company’s Quarterly Report on Form 10-Q for the period ended March 31, 2019 and its most recent Annual Report on Form 10-K, which discussions are hereby incorporated by reference. Forward-looking statements in this presentation include, without limitation, the information set forth on the slide titled “Growth and Value Creation Strategy”, the section of this presentation titled “Growth and Value Creation” and the slide titled “Investment Thesis”. Other forward-looking statements can be identified by words such as “may,” “expect,” “forecast,” “anticipate,” “intend,” “plan,” “believe,” “could,” “seek,” “project,” “estimate,” “target,” and similar expressions. Forward-looking statements speak only as of the date made. The Company assumes no responsibility to update or revise forward-looking statements and cautions listeners and meeting attendees not to place undue reliance on any such statements.This presentation includes certain financial measures not calculated in accordance with U.S. GAAP. They may be different from similarly titled non-GAAP measures used by other companies, and should not be used as a substitute for, or considered superior to, GAAP measures. Reconciliations to the most directly comparable GAAP measures appear in the Appendix.

Interface at a Glance Interface is a global leader of commercial flooring solutions including carpet tile, luxury vinyl tile (LVT) and rubber flooring. Headquartered in Atlanta, GA7 manufacturing locations on 4 continents4,100 global employeesSales in over 110 countriesNew Product Vitality Index** of 38%All products are Carbon Neutral Americas EMEA APAC CorporateOffice Non-Office ** New Product Vitality represents products launched in the past three years and custom productsNote: Geographic breakdown and segment figures represent proforma FYE 2018 sales for Interface and nora combined * See Appendix for a reconciliation of Non-GAAP figures

42%Gross Profit Margin 15%Operating Income Margin 19%EBITDAMargin Investment Thesis VALUE DRIVERS Strong brands that are participating in growth areas of the industryPositioned for growth in a $34 billion global category:Leading share in carpet tile with ~22% of the segment Leading share in rubber with ~30% of the segment Growing share in LVT with ~2% of the segmentAttractive and expanding margin structureGlobal footprint with manufacturing on four continentsStrong track record of value creation 13% Adjusted EBITDA CAGR MID-TERM OBJECTIVES (4-6 years) ADJUSTED EBITDA*($ in millions) 13% CAGR * See Appendix for a reconciliation of Non-GAAP figures

Investment Highlights: Who We Are leadingglobal provider of commercial flooring solutions most valuable brand in the flooring category strongest global sales & marketing capabilities global manufacturing footprint and industry-leading gross margins engaged, customer-centric culture, focused on performance and galvanized around our sustainability mission

Grow the CoreCarpet Tile Business Build a Resilient Flooring Business ExecuteSupply ChainProductivity Optimize SG&AResources Growth and Value Creation Strategy Lead a World-Changing Sustainability MovementCentered Around Mission Zero and Climate Take Back. Interface’s vision is to become the world’s most valuable interior products & services company

InterfacePositioning

GLOBAL COMMERCIAL FLOORING SEGMENT (in Billions) Source: Management estimates Leading Global Provider of Flooring Solutions Interface participates in the $34 Billion Global Commercial Flooring segmentWe are the global share leader in the $4.6 Billion Carpet Tile segment which continues to take share from broadloom We entered the high growth $3.0 Billion LVT segment in 2017 We entered the $0.9 Billion Rubber flooring segment with our acquisition of nora, the category leaderOur served market has expanded from ~$4.2 Billion a couple of years ago to an estimated $8.5 Billion today $10.1 $3.0 $0.9 $2.7 $4.7 $2.9 $5.4 $4.6

GLOBAL COMMERCIAL FLOORING: SEGMENT SIZE vs FORECASTED GROWTH and GROSS MARGIN Participating in Attractive Commercial Flooring Segments Interface serves growing segments of hard and soft surface with the highest margins Source: Management estimates

GLOBAL CARPET TILE SEGMENT BY CHANNEL Premium Player in the Specified Channel Interface competes on design, sustainability and innovation, commanding a premium price point and industry leading marginsInterface is the share leader in the specified and end user channels of commercial carpet tile which are highly influenced by Architects & Designers INTERFACE GLOBAL SHARE OF CARPET TILE PRICE CATEGORIES Source: Management estimates Other

Carpet TileBiomimicry-inspired random design (i2)High recycled content No glue installation (TacTiles®)Faster, more profitable installation for contractorsEasily recycled (ReEntry® program)Carbon neutral (Carbon Neutral Floors™)Luxury Vinyl Tile (LVT)Creative design freedomComplements and enhances our carpet tile portfolio No transition strips needed Same sizes as our carpet tilesHigh acoustic value (Sound Choice™ backing) Carbon neutral (Carbon Neutral Floors™)Rubbernorament® - sheet rubbernoraplan® - modular rubber tilesIdeal for hygienic, safe flooring applicationsExtremely durable with strong chemical resistance Carbon neutral (Carbon Neutral Floors™) Attractive Product Portfolio

Benefits of ModularCreative design freedomNo glue, no padLower cost to changeProduces less wasteFaster, more profitable installation for contractorsEasier to reconfigure and maintainSelective replacement Modular Product Offering

Global Sales and Manufacturing Platform Sales in over 110 countries1,100 sales & marketing professionalsGlobal account management Seven manufacturing locations on four continentsGlobal supply chain managementUnique blend of efficiency and customization Note: Figures represent proforma FYE 2018 for Interface and nora combined Carpet Tile Manufacturing Facility Showroom Location AMERICAS55%of Net Sales EMEA30%of Net Sales ASIA-PACIFC15% of Net Sales Rubber Manufacturing/Distribution Facility

Diversified Customer Verticals CORPORATE OFFICEHighest penetration of carpet tile vs broadloomGlobal Account managementEmerging market penetration EDUCATIONK-12 and higher educationSecond highest penetration of carpet tile vs broadloom Second largest market for rubber HOSPITALITYGuest rooms, corridors and public spacesNamed the brand standard or alternate at Hilton, Marriott, IHG and Choice Hotels properties RETAILRetail and bank branchesSignificant opportunity for broadloom conversionHigh penetration of LVT Note: Figures represent proforma FYE 2018 sales for Interface and nora combined HEALTHCAREHospitals, MOB, Assisted Living and Senior LivingLargest rubber market based on hygienic properties, chemical resistance and durability

Growth andValue Creation

Grow the Core Carpet Tile Business Enhance salesforce productivity – Execute on selling system transformation including reorganization, training and technology toolsElevate and grow segments – Drive growth in priority segments including Corporate Office, Hospitality, Living and EducationOptimize product portfolio – Expand our portfolio to increase the addressable marketLead the market in design and innovation – Continue to introduce innovative new products that energize and inspireContinue to develop brand love, commanding the strongest Net Promoter Score among A&D and End Users

Build a Resilient Flooring Business Continue penetrating the high growth LVT segment, building on successful global LVT launchIntegrate nora® rubber flooring into our product portfolioLeverage innovation pipelineExpand global participationStrategically expand product portfolio

Resilient Flooring: nora Acquisition nora is a leading global manufacturer of commercial rubber floorcovering systems for healthcare, education, life sciences, public buildings and other end markets

Interface and nora Together Americas EMEA APAC Americas EMEA APAC + Office 15% 25% Americas EMEA APAC Americas EMEA APAC Non-office Office Non-office Note: Figures represent proforma FYE 2018 sales for Interface and nora combined Geographic Reach Segmentation excluding nora

Execute Supply Chain Productivity Execute Troup County Optimization plan which we expect to yield annualized savings of $30MImplement a dynamic yarn strategyContinue to deliver on productivity pipeline initiatives

Purpose-DrivenCultureGalvanizedAround aCommonSustainability Mission GLOBESCAN SUSTAINABILITY SURVEY – 20+ YEAR HISTORY Unilever Patagonia Interface IKEA Tesla Natura M&S Nestle

We commit to running our business in a way that creates a climate fit for life – and we call on others to do the same.We expect to demonstrate that industry can operate with carbon negative business models. As a first step, we are the first global flooring manufacturer to offer carbon neutral carpet tile and LVT across our entire product range. Purpose-Driven Companies Outperform their Peer Sets ENERGY USE 43% RENEWABLE ENERGY 88% GHG EMISSIONS 96% WASTE TO LANDFILL 91% WATER INTAKE 88% RECYCLED & BIOBASED MATERIALS 58% PRODUCT CARBON FOOTPRINT 66% Reduction versus 1996 Baseline CLIMATE TAKE BACK

7 k g 2 k g Moving Toward a Carbon Negative Business Model It is possible to make a product with the potential to reverse global warming. CO2 Proof Positive Carpet Tile Prototype

FinancialPerformance

GAAP Financial Results

Adjusted Financial Results* * See Appendix for a reconciliation on Non-GAAP figures** No adjustments for second quarter 2018 or year-to-date 2018

Organic Sales Growth YTD ORGANIC SALES*($ in millions) Q2 ORGANIC SALES*($ in millions) Organic sales were up 2% in Q2 2019nora sales were up 11% in local currency in Q2 2019 vs the stand-alone business * See Appendix for a reconciliation on Non-GAAP figures 2% Growth 2% Growth

Adjusted EBITDA Growth ADJUSTED EBITDA*($ in millions) Proforma Adjusted EBITDA of $200M as of LTM Q2 2019 * See Appendix for a reconciliation on Non-GAAP figures 20% CAGR

Adjusted Earnings Per Share ADJUSTED EARNINGS PER SHARE (DILUTED)* Our value creation strategy is generating double digit Adjusted EPS growth 21% CAGR * See Appendix for a reconciliation on Non-GAAP figures

TOTAL DEBT($ in millions) NET DEBT($ in millions) NET DEBT / ADJUSTED EBITDA* Capitalization and Liquidity * See Appendix for a reconciliation on Non-GAAP figures ADJUSTED EBITDA*($ in millions)

Capital Allocation for Value Creation Reinvest in the Business Evaluate Leverage Explore M&A Opportunities Return Excess Cash to Shareowners CAPITAL DEPLOYMENT PHILOSOPHY Invest in strategic initiatives with high returns including organic growth opportunities, innovation, manufacturing productivity and salesforce effectiveness Utilize excess cash to opportunistically refinance or pay down debtOptimize cost of capital and target Net Debt / Adjusted EBITDA below 3.0x Opportunistically evaluate accretive M&A transactions Returned $33M to shareowners in the first half of 2019 via dividends and stock repurchases Investing in the business to fuel our value creation strategy while upholding a disciplined approach to capital allocation Maintaining strong liquidity with $217million available under our revolving credit facility as of June 30, 2019

Appendix Appendix

Appendix: Reconciliation of Non-GAAP Figures