NEW YORK (TheStreet) - Armstrong World (AWI - Get Report), Lennox International (LII - Get Report), Masco (MAS - Get Report), Owens Corning (OC - Get Report) and Vulcan Materials (VMC - Get Report) are five components in the PHLX Housing Index, which contains 19 companies; 11 homebuilders and eight firms that provide products and services supporting the housing market.

The housing index has a year-to-date gain of 8.2%, beating the Standards & Poor's 500 Index's gain of 3.4%. Lennox reported earnings on Monday that beat analysts' estimates, and traded to an all-time intraday high of $119.15. Owens Corning will report earnings before the opening bell on Wednesday, and analysts expect the company to earn 53 cents a share.

Let's look at the weekly chart for the housing index:


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The weekly graph for the housing index focuses on the Fibonacci Retracement levels of the popped housing bubble, which saw this index decline 82% from 293.66 in July 2005 to a low of 54.31 in March 2009. The housing index has been above its 61.8% retracement at 202.05 since July 2014, with a multiyear intraday high of 238.32 set on April 6. The 200-week simple moving average at 177.24 is the longer-term uptrend for this index.

Here are the weekly charts and key technical levels for the companies that support housing.

First, let's look at the weekly chart for Armstrong.


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Armstrong World had a close of $54.25 on Monday, up 6.1% year to date, but 8% below its April 27 high of $58.96. The designer of floors, ceilings and cabinets is above its 200-day simple moving average of $53.00 and below its 50-day simple moving average of $54.98.

The weekly chart stays negative if the weekly close Friday is below its key weekly moving average of $54.55 with its 200-week simple moving average of $51.23. The momentum reading is projected to decline to 22.30 this week from 25.03 on July 17.

Investors looking to buy Armstrong should place a good till canceled limit order to purchase the stock if it drops to $52.21, which is a key level on technical charts until the end of this week.

Investors looking to reduce holding should place a good till canceled limit order to sell the stock if it rises to $57.61, which is a key level on technical charts until the end of 2015.

Here's the weekly chart for Lennox.


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Lennox International had a close of $116.39 on Monday, up 22.4% year-to-date after an opening of $119.15, which was an all-time intraday high. The air conditioning and heating company held its 50-day simple moving average of $111.38 at Monday's low and is above its 200-day simple moving average of $101.54.

The weekly chart for Lennox will shift to positive at the end of this week if the stock closes Friday above its key weekly moving average of $110.85. The weekly momentum reading is projected to rise to a reading of 36.69 from 35.53 on July 17.

Investors looking to buy Lennox should place a good till canceled limit order to purchase the stock if it drops to $108.60, which is a key level on technical charts until the end of 2015.

Investors looking to book profits should place a good till canceled limit order to sell the stock if it rises to $119.29 and $122.08, which are key levels on technical charts until the end of July and September, respectively.

Here's the weekly chart for Masco.


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Masco closed at $23.01 on Monday, down 8.7% year-to-date, and is trading between its 200-day simple moving average of $22.41 and its 50-day simple moving average of $23.83.

The home improvement and building products company has had a negative weekly chart since its weekly close of $23.60 on July 2. The stock is below its key weekly moving average at $23.47 and its weekly momentum reading is projected to decline to 41.64 from 52.37 on July 17.

Investors looking to buy Masco should place a good till canceled limit order to purchase the stock if it drops to $21.95, which is a key level on technical charts until the end of 2015.

Investors looking to reduce holdings should place a good till canceled limit order to sell the stock if it rises to $25.30, which is a key level on technical charts until the end of 2015.

Here's the weekly chart for Owens Corning.


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Owens Corning closed at $42.78 on Monday, up 19.5% year-to-date, and is above its 50-day and 200-day simple moving averages of $41.06 and $38.19, respectively.

The provider of insulation, roofing and siding has a positive weekly chart, with the stock above its key weekly moving average of $41.73 with its weekly momentum projected to rise to 61.56 from 52.35 on July 17.

Investors looking to buy Owens should place a good till canceled limit order to purchase the stock if it drops to $39.59 and $36.21, which are key levels on technical charts until the end of September and the end of 2015, respectively.

Investors looking to reduce holdings should place a good till canceled limit order to sell the stock if it rises to $47.34, which is a key level on technical charts until the end of July.

Here's the weekly chart for Vulcan Materials.


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Vulcan Materials closed at $94.03 on Monday, up 43.1% year-to-date, and traded to an all-time intraday high of $94.12 that day. The stock is above its 50-day and 200-day simple moving averages of $89.20 and $76.67, respectively.

The concrete and cement company has a positive weekly chart with the stock above its key weekly moving average of $89.85. The weekly momentum reading is projected to rise to 71.82 this week from 63.56 on July 17.

Investors looking to buy Vulcan should place a good till canceled limit order to purchase the stock if it drops to $89.27, which is a key level on technical charts until the end of September. 

Investors looking to book profits should place a good till canceled limit order to sell the stock if it rises to $96.72, which is a key level on technical charts until the end of July. 

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.