Exhibit 99.1

JANUS INTERNATIONAL GROUP REPORTS SECOND QUARTER 2021 FINANCIAL RESULTS

Delivered strong double-digit year over year growth in revenues and Adjusted EBITDA

Completed business combination with Juniper Industrial Holdings and began trading on the New York Stock Exchange

Announced highly strategic acquisition of DBCI, a leading complementary specialty building products solutions provider

TEMPLE, GA, August 10, 2021 – Janus International Group, Inc. (NYSE: JBI) (“Janus” or the “Company”), a leading provider of cutting-edge access control technologies and building product solutions for the self-storage and other commercial and industrial sectors, today announced financial results for the second quarter of 2021.

Second Quarter 2021 Highlights

• Revenues of $174.2 million, a 42.5% increase compared to the second quarter of 2020, driven primarily by strong performance in the commercial (69% increase quarter over quarter) and R3 —self storage (62% increase quarter over quarter) sales channels, which was partially bolstered by COVID-related recoveries across all end markets.

• Net income of $1.1 million, a decrease from $11.0 million in the second quarter of 2020. The year over year decrease was driven primarily by costs related to the consummation of the completed business combination, increased raw material, labor and logistics costs and higher income taxes.

• Adjusted net income (defined as net income plus the corresponding add-backs shown in the Adjusted EBITDA reconciliation tables below) of $17.3 million, an increase from $11.3 million in the second quarter of 2020. The year over year increase was driven primarily by higher revenue and lower interest expense, partially offset by increased raw material, labor and logistics costs coupled with higher income tax expense.

• Adjusted EBITDA of $35.9 million, a 26.0% increase compared to the second quarter of 2020, driven by higher revenues, partially offset by inflationary pressures from raw materials, labor, logistics, and strategic investments to support growth. The Company has taken actions to offset the inflationary effects through both commercial and cost containment initiatives. The Company also experienced incremental costs associated with being a public company, keeping employees safe as a result of COVID-19, higher headcount due to strategic investments behind the new Facilitate initiatives, and the continued build out of the Nokē Smart Entry ground game and customer service department.

• Operating cash flow of $44.8 million modestly declined from the second quarter of 2020 reflecting investments in working capital to support the continued growth of the business.

Ramey Jackson, Chief Executive Officer, stated, “The second quarter of 2021 was a transformative period for Janus, where we executed on our business plan while simultaneously closing our merger with Juniper Industrial Holdings to become a publicly traded company. Our top line and EBITDA growth reflect our strong position in our improving end markets. And while we were impacted by the same inflationary pressures the entire industry has seen in raw material, labor and logistics, Janus has taken actions to offset the inflationary effects through commercial and cost containment initiatives that we expect will positively impact our results over the coming quarters.”

Mr. Jackson continued, “Janus continues to be well positioned with a combination of best in class products in the self-storage industry and an exciting mix of technology-driven new products for further growth. The demand outlook for our products in self-storage and the commercial and industrial markets remains strong.

Now that we are a public company, we are even better positioned to execute on all of these value-enhancing opportunities. We also look to grow via opportunistic M&A, as highlighted by our recently announced agreement to acquire DBCI, a leading provider of steel roll-up doors and building products. We are particularly excited about this acquisition, which is expected to complement our product offerings and begin positively contributing to our results upon its expected closing in the third quarter of 2021.”

2021 Financial Outlook:

Based on the Company’s current business outlook, excluding the DBCI acquisition, Janus is providing the following 2021 guidance:

• Revenue in a range of $672 million to $692 million.

• Management Adjusted EBITDA in a range of $156 million to $162 million.

These preliminary results are derived from preliminary internal financial information and are subject to revision. The estimates set forth above were prepared by the Company’s management and are based upon a number of assumptions. See “Forward-Looking Statements.”

As part of this release, Janus is providing an Adjusted EBITDA reconciliation that compares the company’s previously released outlook (on a “Management Adjusted EBITDA” basis) to the Adjusted EBITDA reported in public filings. Management Adjusted EBITDA excludes sponsor management fees, acquisition expenses, Nokē-related startup costs, and other non-recurring expenses. Beginning in full-year 2022, the company expects there to be minimal ongoing differences between Adjusted EBITDA and Management Adjusted EBITDA and therefore currently anticipates reporting only Adjusted EBITDA for 2022 and beyond.

Conference Call and Webcast

The Company will host a conference call and webcast to review second quarter results, discuss recent events and conduct a question-and-answer session on Tuesday, August 10, 2021, at 10:00 a.m. Eastern time. The live webcast and archived replay of the conference call can be accessed on the Investors section of the Company’s website at www.janusintl.com. For those unable to access the webcast, the conference call will be accessible domestically or internationally, by dialing 1-877-407-0789 or 1-201-689-8562, respectively. Upon dialing in, please request to join the Janus International Group Second Quarter 2021 Earnings Conference Call. To access the replay of the call, dial 1-844-512-2921 (Domestic) and 1-412-317-6671 (International) with pass code 13722239.

About Janus International Group

Janus International Group, Inc. (www.JanusIntl.com) is a global manufacturer and supplier of turn-key self-storage, commercial and industrial building solutions, including: roll-up and swing doors, hallway systems, re-locatable storage units and facility and door automation technologies. The Janus team operates out of several U.S. locations and six locations internationally.

Forward Looking Statements

Certain statements in this communication, including the estimated guidance provided under “2021 Financial Outlook” herein, may be considered “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical fact included in this communication are forward-looking statements, including, but not limited to statements regarding Janus’ positioning in the industry to strengthen its pipeline and deliver on its objectives and Janus’ belief regarding the demand outlook for Janus’ products and the strength of the industrials markets. When used in this communication, words such as “may,” “should,” “could,” “would,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “continue,” or the negative of such terms or other similar expressions, as they relate to the management team, identify forward-looking statements. Such forward-looking statements are based on the current beliefs of Janus’ management, based on currently available information, as to the outcome and timing of future events, and involve factors, risks, and uncertainties that may cause actual results in future periods to differ materially from such statements.

In addition to factors previously disclosed in Janus’ reports filed with the SEC and those identified elsewhere in this communication, the following factors, among others, could cause actual results to differ materially from forward-looking statements or historical performance: (i) risks of the self-storage industry; (ii) the highly competitive nature of the self-storage industry and Janus’ ability to compete therein;; and (iii) the risk that the demand outlook for Janus’ products may not be as strong as anticipated.

There can be no assurance that the events, results, trends or guidance regarding financial outlook identified in these forward-looking statements will occur or be achieved. Forward-looking statements speak only as of the date they are made, and Janus is not under any obligation and expressly disclaims any obligation, to update, alter or otherwise revise any forward-looking statement, whether as a result of new information, future events or otherwise, except as required by law. This communication is not intended to be all-inclusive or to contain all the information that a person may desire in considering an investment in Janus and is not intended to form the basis of an investment decision in Janus. All subsequent written and oral forward-looking statements concerning Janus or other matters and attributable to Janus or any person acting on its behalf are expressly qualified in their entirety by the cautionary statements above and under the heading “Risk Factors” in Janus’ final prospectus filed with the SEC on August 6, 2021 and in Janus’ other filings.

Non-GAAP Financial Measure

Janus uses measures of performance that are not required by or presented in accordance with GAAP in the United States. Non-GAAP financial performance measures are used to supplement the financial information presented on a GAAP basis. These non-GAAP financial measures should not be considered in isolation or as a substitute for the relevant GAAP measures and should be read in conjunction with information presented on a GAAP basis.

Adjusted EBITDA is a non-GAAP financial measure used by Janus to evaluate its operating performance, generate future operating plans, and make strategic decisions, including those relating to operating expenses and the allocation of internal resources. Accordingly, Janus believes Adjusted EBITDA provides useful information to investors and others in understanding and evaluating Janus’ operating results in the same manner as its management and board of directors and in comparison with Janus’ peer group companies. In addition, Adjusted EBITDA provides useful measures for period-to-period comparisons of Janus’ business, as they remove the effect of certain non-recurring events and other non-recurring charges, such as acquisitions, and certain variable or non-recurring charges. Adjusted EBITDA is defined as net income excluding interest expense, income taxes, depreciation expense, amortization, and other non-operational, non-recurring items.

Adjusted EBITDA should not be considered in isolation of, or as an alternative to, measures prepared in accordance with GAAP. There are a number of limitations related to the use of Adjusted EBITDA rather than net income (loss), which is the nearest GAAP equivalent of Adjusted EBITDA. These limitations include that the non-GAAP financial measures: exclude depreciation and amortization, and although these are non-cash expenses, the assets being depreciated may be replaced in the future; do not reflect interest expense, or the cash requirements necessary to service interest on debt, which reduces cash available; do not reflect the provision for or benefit from income tax that may result in payments that reduce cash

available; exclude non-recurring items (i.e., the extinguishment of debt); and may not be comparable to similar non-GAAP financial measures used by other companies, because the expenses and other items that Janus excludes in the calculation of these non-GAAP financial measures may differ from the expenses and other items, if any, that other companies may exclude from these non-GAAP financial measures when they report their operating results. Because of these limitations, these non-GAAP financial measures should be considered along with other operating and financial performance measures presented in accordance with GAAP.

Janus International Group, Inc.

Consolidated Statements of Operations and Comprehensive Income (Loss)

	Three Months Ended						Six Months Ended
	June 26, 2021			June 27, 2020			June 26, 2021			June 27, 2020
	(Unaudited)			(Unaudited)			(Unaudited)			(Unaudited)
REVENUE
Sales of product	$	140,556,306		$	95,425,815		$	262,252,532		$	203,536,725
Sales of services		33,626,083			26,803,808			64,754,124			56,506,693
Total revenue		174,182,389			122,229,623			327,006,657			260,043,418
Cost of Sales		114,987,977			77,449,920			214,518,947			167,180,130
GROSS PROFIT		59,194,412			44,779,703			112,487,710			92,863,288
OPERATING EXPENSE
Selling and marketing		10,382,169			7,717,283			19,840,296			17,977,566
General and administrative		34,471,523			16,931,440			54,057,831			34,566,666
Operating Expenses		44,853,692			24,648,723			73,898,127			52,544,232
INCOME FROM OPERATIONS		14,340,720			20,130,980			38,589,583			40,319,056
Interest expense		(7,475,727	)		(8,737,328	)		(15,601,797	)		(18,678,476	)
Other income (expense)		(920,003	)		23,884			(2,478,869	)		99,211
Change in fair value of derivative warrant liabilities		(1,928,500	)		—			(1,928,500	)		—
Other Expense, Net		(10,324,230	)		(8,713,444	)		(20,009,166	)		(18,579,265	)
INCOME BEFORE TAXES		4,016,490			11,417,535			18,580,417			21,739,791
Provision for Income Taxes		2,893,283			400,067			2,738,389			770,292
NET INCOME	$	1,123,207		$	11,017,468		$	15,842,028		$	20,969,499
Other Comprehensive Income (Loss)		(37,082	)		(226,575	)		273,686			(3,758,060	)
COMPREHENSIVE INCOME	$	1,086,125		$	10,790,893		$	16,115,714		$	17,211,439
Net income attributable to common stockholders	$	1,123,207		$	11,017,468		$	15,842,028		$	20,969,499
Weighted-average shares outstanding, basic and diluted (Note 15)
Basic		81,009,261			65,819,588			73,577,447			66,876,683
Diluted		81,624,496			65,819,588			73,879,851			66,876,683
Net income per share, basic and diluted (Note 15)
Basic	$	0.01		$	0.17		$	0.22		$	0.31
Diluted	$	0.01		$	0.17		$	0.21		$	0.31

Janus International Group, Inc.

Consolidated Balance Sheets

	June 26,			December 26,
	2021			2020
	(Unaudited)
ASSETS
Current Assets
Cash	$	15,287,621		$	45,254,655
Accounts receivable, less allowance for doubtful accounts; $3,819,000 and $4,485,000, at June 26, 2021 and December 26, 2020, respectively		79,557,005			75,135,295
Costs and estimated earnings in excess of billing on uncompleted contracts		16,614,552			11,398,934
Inventory, net		36,289,253			25,281,521
Prepaid expenses		8,443,195			5,949,711
Other current assets		2,322,802			5,192,386
Total current assets	$	158,514,428		$	168,212,502
Property and equipment, net		31,682,826			30,970,507
Customer relationships, net		297,563,142			309,472,398
Tradename and trademarks		85,819,442			85,597,528
Other intangibles, net		16,627,892			17,387,745
Goodwill		260,275,193			259,422,822
Deferred tax asset		78,435,843			—
Other assets		1,759,222			2,415,243
Total assets	$	930,677,988		$	873,478,745
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Accounts payable	$	45,316,067		$	29,889,057
Billing in excess of costs and estimated earnings on uncompleted contracts		21,612,809			21,525,319
Current maturities of long-term debt		6,346,071			6,523,417
Other accrued expenses		48,357,979			37,164,627
Total current liabilities	$	121,632,926		$	95,102,420
Long-term debt, net		557,574,245			617,604,254
Deferred tax liability		14,577,682			15,268,131
Derivative warrant liability		39,077,500			—
Other long-term liabilities		2,885,875			4,631,115
Total liabilities	$	735,748,228		$	732,605,920
STOCKHOLDERS’ EQUITY
Common Stock, 825,000,000 shares authorized, $.0001 par value, 138,384,250 and 66,145,633 shares issued and outstanding at June 26, 2021 and December 26, 2020, respectively		13,838			6,615
Additional paid in capital		231,406,515			189,298,544
Accumulated other comprehensive income (loss)		46,526			(227,160	)
Accumulated deficit		(36,537,119	)		(48,205,174	)
Total stockholders’ equity	$	194,929,760		$	140,872,825
Total liabilities and stockholders’ equity	$	930,677,988		$	873,478,745

Janus International Group, Inc.

Consolidated Statements of Cash Flows

	Six Months Ended
	June 26, 2021			June 27, 2020
	(Unaudited)			(Unaudited)
Cash Flows Provided By Operating Activities
Net income	$	15,842,028		$	20,969,499
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		2,979,336			2,832,701
Intangible amortization		13,622,957			13,395,767
Deferred finance fee amortization		1,486,634			1,609,125
Share based compensation		2,111,099			57,659
Loss on extinguishment of debt		2,414,854			—
Change in fair value of contingent consideration		686,700			—
Loss on sale of assets		43,091			18,487
Change in fair value of derivative warrant liabilities		1,928,500			—
Undistributed (earnings) losses of affiliate		(105,107	)		12,125
Deferred income taxes		(767,658	)		—
Changes in operating assets and liabilities
Accounts receivable		(4,421,710	)		2,114,772
Costs and estimated earnings in excess of billings and billings in excess of costs and estimated earnings on uncompleted contracts		(5,215,618	)		8,717,983
Prepaid expenses and other current assets		(2,945,823	)		(2,498,675	)
Inventory		(11,007,730	)		(655,990	)
Accounts payable		15,393,047			441,237
Other accrued expenses		14,116,513			2,076,616
Other assets and long-term liabilities		(1,338,231	)		1,442,694
Net Cash Provided By Operating Activities		44,822,882			50,534,000
Cash Flows Used In Investing Activities
Proceeds from sale of equipment		79,409			6,083
Purchases of property and equipment		(3,992,533	)		(3,801,552	)
Cash paid for acquisition, net of cash acquired		(1,564,957	)		(4,592,779	)
Net Cash Used In Investing Activities		(5,478,081	)		(8,388,248	)
Cash Flows Used In Financing Activities
Distributions to Janus Midco LLC unitholders		(4,173,973	)		(339,982	)
Principal payments on long-term debt		(63,238,000	)		(4,205,693	)
Proceeds from merger		334,873,727			—
Proceeds from PIPE		250,000,000			—
Payments for transaction costs, net		(44,489,256	)		—
Payments to Janus Midco, LLC unitholders at the business combination		(541,710,278	)		—
Payments for deferred financing fees		(765,090	)		—
Cash Used In Financing Activities	$	(69,502,870	)	$	(4,545,675	)
Effect of exchange rate changes on cash and cash equivalents		191,035			(1,091,444	)
Net (Decrease) Increase in Cash and Cash Equivalents	$	(29,967,034	)	$	36,508,633
Cash and Cash Equivalents, Beginning of Fiscal Year	$	45,254,655		$	19,905,598
Cash and Cash Equivalents as of June 26, 2021 and June 27, 2020	$	15,287,621		$	56,414,231
Supplemental Cash Flows Information
Interest paid	$	16,847,651		$	12,233,825
Income taxes paid	$	773,608		$	537,810
Fair value of earnout	$	686,700		$	—
Fair value of warrants	$	1,928,500		$	—

Janus International Group, Inc.

Reconciliation of Net Income to Adjusted EBITDA

	Three Months
	Period ended June 26, 2021		Period ended June 27, 2020		Variance
					$			%
Net Income	$	1,123,207	$	11,017,468	$	(9,894,262	)		(89.8	)%
Interest Expense		7,475,727		8,737,328		(1,261,601	)		(14.4	)%
Income Taxes		2,893,283		400,067		2,493,216			623.2	%
Depreciation		1,506,337		1,402,779		103,558			7.4	%
Amortization		6,790,812		6,686,217		104,595			1.6	%
EBITDA	$	19,789,366	$	28,243,859	$	(8,454,494	)		(29.9	)%
Loss (gain) on extinguishment of debt(2)		993,562		—		993,562			—	%
COVID-19 related expenses(3)		12,808		265,738		(252,930	)		(95.2	)%
Transaction related expenses(4)		10,398,423		—		10,398,423			—	%
Facility relocation(5)		50,692		—		50,692			—	%
Share-based compensation(6)		2,059,223		—		2,059,223			—	%
Change in fair value of contingent consideration(7)		686,700		—		686,700			—	%
Change in fair value of derivative warrant liabilities(8)		1,928,500		—		1,928,500			—	%
Adjusted EBITDA	$	35,919,274	$	28,509,597	$	7,409,676			26.0	%

	Six Months
	Period ended June 26, 2021		Period ended June 27, 2020		Variance
					$			%
Net Income	$	15,842,028	$	20,969,499	$	(5,127,471	)		(24.5	)%
Interest Expense		15,601,797		18,678,476		(3,076,679	)		(16.5	)%
Income Taxes		2,738,389		770,292		1,968,097			255.5	%
Depreciation		2,979,336		2,832,701		146,635			5.2	%
Amortization		13,622,957		13,395,767		227,190			1.7	%
EBITDA	$	50,784,507	$	56,646,735	$	(5,862,228	)		(10.3	)%
BETCO transition fee(1)		—		15,000		(15,000	)		(100.0	)%
Loss (gain) on extinguishment of debt(2)		2,414,854		—		2,414,854			—	%
COVID-19 related expenses(3)		209,263		265,738		(56,475	)		(21.3	)%
Transaction related expenses(4)		10,398,423		—		10,398,423			—	%
Facility relocation(5)		67,645		—		67,645			—	%
Share-based compensation(6)		2,059,223		—		2,059,223			—	%
Change in fair value of contingent consideration(7)		686,700		—		686,700			—	%
Change in fair value of derivative warrant liabilities(8)		1,928,500				1,928,500			—	%
Adjusted EBITDA	$	68,549,115	$	56,927,473	$	11,621,642			20.4	%

(1) Retainer fee paid to former BETCO owner, during the transition to a new President to run the business and related one-time-consulting fee.

(2) Adjustment for loss (gain) on extinguishment of debt regarding the write off of unamortized fees and third-party fees as a result of the debt modification completed in February 2021 and the prepayment of debt in the amount of $61.6 million that occurred on June 7, 2021 in conjunction with the Business Combination. See Liquidity and Capital Resources section.

(3) Expenses which are one-time and non-recurring related to the COVID-19 pandemic. See Impact of COVID-19 section.

(4) Transaction related expenses incurred as a result of the Business Combination on June 7, 2021 which consist of employee bonuses and the transaction cost allocation.

(5) Expenses related to the facility relocation for Steel Storage.

(6) Share-based compensation expense associated with Midco, LLC Class B Common units that fully vested at the date of the Business Combination.

(7) Adjustment related to the change in fair value of contingent consideration related to the earnout of the 2,000,000 common stock shares that were issued and released on June 21, 2021.

(8) Adjustment related to the change in fair value of derivative warrant liabilities for the private placement warrants.

Janus International Group, Inc.

Adjusted EBITDA to Management Adjusted EBITDA Reconciliation

(In millions)

	Twelve Months Ended		Three Months Ended		Twelve Months Ended		Three Months Ended			Twelve Months Ended
	June 26, 2021		June 26, 2021		March 27, 2021		March 27, 2021			December 26, 2020			December 28, 2019		December 29, 2018
	(Unaudited)		(Unaudited)		(Unaudited)		(Unaudited)			(Unaudited)			(Unaudited)		(Unaudited)
Net Income	$	51.1	$	1.1	$	62.7	$	14.7		$	56.8		$	34.3	$	7.6
Interest Expense		32.9		7.5		34.2		8.1			36.0			42.6		34.5
Tax Expense/ (Benefit) (1)		4.6		2.9		2.0		(0.2	)		2.1			—		1.8
Depreciation and Amortization		33.4		8.3		31.7		8.3			32.9			41.1		63.7
EBITDA Adjustments (2)		15.9		16.1		0.5		1.6			(1.6	)		4.3		6.5
Non-GAAP Adjusted EBITDA (3)		138.0		35.9		131.1		32.6			126.2			122.3		114.1
Management Fee (4)		7.3		1.2		7.7		1.8			7.6			7.4		6.1
Acquisition Expense (5)		1.2		1.0		0.2		—			0.3			1.1		4.2
Non-Recurring Other (6)		3.6		0.4		4.0		0.3			5.2			6.0		—
Noke Startup (7)		4.6		1.3		4.4		1.2			4.2			3.5		—
Management Adjusted EBITDA	$	154.6	$	39.8	$	147.4	$	36.0		$	143.5		$	140.3	$	124.4

(1) Prior to the SPAC Merger, Janus was registered as an LLC (pass-through tax entity)

(2) Refer to SEC public filings Non-GAAP Financial Measures Section for detailed breakout

(3) Reconciles to SEC reported Adjusted EBITDA

(4) Quarterly management fee paid to unitholders

(5) Transaction expenses associated with recent acquisitions

(6) Consists of other non-recurring items such as professional services and other one-time expenses

(7) One-time expenses associated with Nokē Smart Entry product launch

Investor Contacts, Janus

Rodny Nacier / Dan Scott

IR@janusintl.com

(770) 562-6399

Media Contacts, Janus

Bethany Morehouse

Marketing Content Manager, Janus International

770-746-9576

Marketing@Janusintl.com

Margot Olcay, ICR

Margot.Olcay@ICRinc.com