Is Carlisle Stock (CSL) Halal? A Complete Analysis

The Short Answer

ZakatInvest currently classifies Carlisle stock (CSL) as doubtful because the latest total-assets financial screen fails. CSL is a US specialty-building-products manufacturer organized into two reporting segments after a multi-year portfolio repositioning: Carlisle Construction Materials (single-ply commercial roofing membranes, polyurethane spray-foam and rigid-board insulation, waterproofing, and metal roofing under brands including Carlisle SynTec, Henry, Versico, and Hunter Panels) and Carlisle Weatherproofing Technologies (waterproofing membranes, sealants, and air-and-vapor barriers for residential and commercial building envelopes).

The customer base consists of commercial roofing contractors, residential builders, and building-products distributors across North America. Specialty building-envelope and roofing products are unambiguously permissible at the activity level. Carlisle has divested its industrial-products and interconnect-technology segments to focus on building products.

Sharia Screening Methodology

Islamic scholars use several criteria to screen stocks:

• Business activity screen: Is the company's primary business halal?
• Debt ratio: Total debt / market cap must be under 33%
• Interest income: Interest income / total revenue must be under 5%
• Haram revenue: Revenue from haram sources must be under 5%
• Receivables ratio: Total receivables / total assets must be under 49–70% (varies by board)

Carlisle's Business Activity

Carlisle operates across two reporting segments:

• Carlisle Construction Materials: Single-ply commercial roofing membranes (TPO, EPDM, PVC), polyurethane spray-foam and rigid-board insulation, waterproofing, and metal-roofing products distributed to commercial roofing contractors
• Carlisle Weatherproofing Technologies: Waterproofing membranes, sealants, and air-and-vapor barriers for residential and commercial building envelopes — primarily anchored by the 2023 Henry Company acquisition

Specialty building-envelope and roofing products are permissible at the activity level.

Concerns to Be Aware Of

1. Acquisition-Financing Debt

The balance sheet has been used for sizable acquisitions (notably the 2023 Henry Company acquisition), and the debt-to-market-cap ratio has at times sat near the 33% Sharia threshold. Carlisle has been deleveraging from strong free cash flow. Muslim investors should verify the current ratio at their preferred screening platform.

2. Commercial-Roofing-Replacement Cycle

Carlisle is exposed to the commercial-roofing-replacement cycle and the residential-construction cycle. This is a business-quality consideration rather than a Sharia-screen concern.

3. Customer Concentration

Carlisle's customer base is concentrated with a small group of large commercial roofing contractors and building-products distributors. This is a business-quality consideration rather than a Sharia-screen concern.

4. Minor Interest Income on Cash Reserves

Carlisle reports $8.9 million of interest income in Q1 2026, or 0.85% of quarterly revenue. Investors should apply their scholar's purification rule rather than relying on a fixed percentage.

Financial Ratios (Q1 2026)

Based on Carlisle's Form 10-Q for the period ended March 31, 2026:

• Interest-bearing debt / assets: 48.23% — above the 33.333% FTSE Yasaar limit ❌
• Receivables + cash / assets: 24.44% — below the 50% reference limit ✅
• Interest income / revenue: 0.85% based on disclosed quarterly interest income ✅
• Market-cap denominator: Not calculated without a licensed historical market-cap series ⚠️

Verdict from Major Screening Agencies

Carlisle stock is generally screened as compliant (halal) by:

• Zoya App — Often Compliant when financial ratios pass ✅
• MSCI Islamic criteria — Often meets criteria when the debt ratio passes ⚠️
• Most major Sharia advisory boards — Approved as general-purpose building-products manufacturer ✅

Bottom Line

Carlisle (CSL) is doubtful under the current total-assets screen because debt/assets is 48.23%, above the examined 33.333% limit. The specialty-building-products business remains generally permissible at the activity level, but investors should obtain a current board-specific ruling and verify any market-cap methodology separately.

For Muslim investors seeking exposure to the specialty-building-products category, CSL sits in a peer group with Owens Corning, Builders FirstSource, Masco, and Watsco — most of which screen halal under standard Sharia methodology when financial ratios pass.