John Peterson
Analyst · Scott Rednor, Zelman
Thanks, Robert. Jerry and Robert provided some headlines on TopBuild's third quarter financial performance, and now I'll take you through a more detailed discussion. I'll be reviewing overall sales and profitability for TopBuild, segment results, SG&A performance, operating income, adjusted EBITDA, EPS and a review of the effective tax rate for the third quarter. Finally, we'll review our overall working capital, cash flow, CapEx and cash position.
Moving to Slide 11. TopBuild's revenue increased 7.6% to $428 million, driven by growth in both the Installation and Distribution segments. Residential and commercial contributed to the topline growth, as did improved pricing, which was one factor driving our adjusted gross margin rate back up to 22.2% for the period. Adjusted operating margins came in at 7.3%, a 170 basis point improvement from prior year. Margins improved due to volume growth, lower depreciation expense, lower corporate overheads and cost reduction activities. Adjusted EBITDA for the quarter was $36 million, a 21% improvement year-over-year.
Moving to Slide 12. TruTeam, our Installation segment, delivered third quarter revenues of $279.8 million, an 8.7% improvement over prior year. Major drivers were growth in residential new construction, commercial and improved selling prices. Year-to-date, TruTeam has grown 9.4%, which tracks closely to like starts on a year-to-date basis. Adjusted operating margins for TruTeam were 7.8%, a 280 basis point improvement over third quarter 2014. TruTeam's top line growth and strong volume leverage, lower depreciation and cost savings initiatives all contributed to the improved margins.
Please turn to Slide 13. Service Partners' third quarter revenue rose 5.4% to $170.9 million. Topline growth was achieved through increased sales to external customers and the installation channel. Service Partners' third quarter operating margin was 9.9%, 60 basis points above prior year, driven by volume leverage and cost reduction activities.
Next, moving to Slide 14, let's discuss SG&A. As we have mentioned previously, we had a significant asset roll off of our booked depreciation schedule at the end of 2014. So each quarter, our depreciation and amortization will be approximately $3 million less than the prior year. In addition, now that we are fully separated from Masco, our public company cost recorded each quarter as opposed to the Masco corporate overhead allocations reflected in our results each quarter prior to June 30, 2015. So this slide depicts normalized operation. On an adjusted basis, SG&A expenses declined by $2.6 million year-over-year to $63.8 million, representing 14.9% of sales or a 180 basis point improvement. The reduction was primarily due to lower depreciation and amortization with all of other expenses essentially flat.
Moving to Slide 15. Adjusted earnings per diluted share using a normalized tax rate of 36% were $0.50 for the third quarter compared to $0.32 per share for the prior year.
Please turn to Slide 16. Starting with CapEx, through 9 months, the company has invested $10.6 million in capital spending, in line with our guidance of investment at or around 1% of sale. Working capital as a percentage of sales at the end of the third quarter declined 110 basis points from prior year, largely due to improved accounts payable performance. Moving to operating cash flow, the company had a source of cash flow of $43.2 million in the first 9 months of 2015 as compared with the source of cash flow of $39.7 million in the prior year. The improvement was driven primarily by stronger earnings. At the end of the second quarter, we had over $108 million in cash on the balance sheet, which, coupled with our acceptable revolving credit facility, provides TopBuild with $176 million in liquidity, up $45 million from second quarter 2015.
Looking ahead to the fourth quarter, I want to remind those of you who modeled the company of 2 items, which impacted the fourth quarter of last year. First, as those of you who followed Masco at that time might recall, there was a brief discussion on their Q4 2014 earnings call about an insurance adjustment in our business. The benefit to our company was approximately $5.2 million, which was reflected in gross margin in the fourth quarter of 2014. Second, as we pointed out in our second quarter 2015 10-Q, TopBuild was incorrectly allocated a favorable legal settlement belonging to another Masco business unit in fourth quarter 2014. As a result, SG&A was understated and operating profit was overstated by $1.9 million. Since the error was not considered material to the previously reported 2014 financial statement, the correction was made as an out of period adjustment in first quarter 2015. As a result of both of those items, gross margin and operating profit comparisons will be more difficult in the fourth quarter of 2015, and this will negatively affect our incremental operating profit and EBITDA margin. Just to clarify, these adjustments only impact our year-over-year comps, not our sequential performance.
Moving to income taxes. Our effective tax rate for the 3-month and 9-month periods ended September 30, 2015, is somewhat distorted from the 36% normalized tax rate we would expect. This is due to Masco's utilization of the net operating losses, which existed at the time of the separation and the change in the valuation allowance. As a result, the effective rate for the quarter was 42%. As discussed previously, we expect that continued improvements in our operation will result in the objective positive evidence to warrant a reversal of all or portion of the valuation allowance for U.S. Federal and certain state jurisdictions by year-end 2015. Just to reiterate what we have said on many occasions, it's anticipated that a significant portion or possibly all of TopBuild's U.S. Federal net operating loss carryforwards will be utilized by the Masco Consolidated Group through December 31, 2015. Therefore, we continue to advise that our tax rate for 2016 and beyond is expected to be at or near 36%. Overall, we're pleased with our third quarter performance.
And now operator, we're ready for questions.