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) provide products and materials to all segments of the housing market including new home construction, home resales and home improvement. The weekly charts for these five stocks are shifting to negative as the housing market recovery losses momentum.

These stocks are components of the PHLX Housing Index which includes 19 components, of which 11 are homebuilders.

Armstrong World provides ceilings and cabinets. Lennox provides air conditioning and heating systems. Masco provides home improvement and building products. Owens Corning makes insulation, roofing and siding products. Vulcan Materials makes the ingredients for concrete and cement.

Here's the weekly chart for the housing index.

 

Courtesy of MetaStock Xenith

The weekly chart for the housing index is negative with the index below its key weekly moving average of 240.17 and above its 200-week simple moving average of 208.95. Weekly momentum is projected to decline to 55.48 this week down from 67.45 on Sept. 16.

The horizontal lines are the Fibonacci retracements of the decline from its July 2005 high of 293.66 to the March 2009 low 54.31. The crash of 2008 totaled 81.5%. The index has been above its 61.8% retracement at 201.87 since the week of February 26.

Here's the scorecard for the housing index and five housing-related stocks.

 

Here's the weekly chart for Armstrong World.

 

Courtesy of MetaStock Xenith

The weekly chart for Armstrong World is negative, with the stock below its key weekly moving average of $41.73 and now back below its 200-week simple moving average of $44.86, last tested during the week of Aug. 26. The weekly momentum reading is projected to decline to 61.62 this week down from 70.56 on Sept. 16.

Investors looking to buy Armstrong should buy weakness to $36.90, which is a key level on technical charts until the end of September.

There are several pivots still in play including monthly and annual pivots of $40.65 and $41.95, respectively.

Investors looking to reduce holdings should sell strength to $44.84, which is a key level on technical charts until the end of 2016.

Here's the weekly chart for Lennox.

 

Courtesy of MetaStock Xenith

The weekly chart for Lennox is positive but overbought with the stock above its key weekly moving average of $155.54 and well above its 200-week simple moving average of $98.61. The weekly momentum reading is projected to slip to 80.72 this week down from 87.12 on Sept. 16. This chart could easily end the week negative given a close on Friday below $155.54 with the momentum reading falling below 80.00.

Investors looking to buy Lennox should buy weakness to $143.75, which is a key level on technical charts until the end of September. A key level of $154.38 remains in play until the end of 2015.

Investors looking to reduce holdings sold strength to $159.11, which is a key level on technical charts until the end of September.

Here's the weekly chart for Masco.

 

Courtesy of MetaStock Xenith

The weekly chart for Masco is negative with the stock below its key weekly moving average of $33.90 and well above its 200-week simple moving average of $22.72. The weekly momentum reading is projected to decline to 60.79 this week down from 69.18 set on Sept. 16.

Investors looking to buy Masco should buy weakness to $30.58, which is a key level on technical charts until the end of September. Key levels of $33.13 and $33.82 remain in play until the end of September and the end of 2016, respectively.

Investors looking to reduce holdings should sell strength to $35.65, which is a key level on technical charts until the end of September.

Here's the weekly chart for Owens Corning.

 

Courtesy of MetaStock Xenith

The weekly chart for Owens Corning is negative with the stock below its key weekly moving average of $52.66 and well above its 200-week simple moving average of $41.79. The weekly momentum reading is projected to decline to 45.51 this week down from 54.25 on Sept. 16.

Investors looking to buy Owens Corning should buy weakness to $48.76 and $48.31, which are key levels on technical charts until the end of 2016 and the end of September, respectively.

Investors looking to reduce holdings should sell strength to $52.48 and $56.48, which are key levels on technical charts until the end of September and the end of 2016, respectively.

Here's the weekly chart for Vulcan Materials.

 

Courtesy of MetaStock Xenith

The weekly chart for Vulcan Materials is negative with the stock below its key weekly moving average of $112.96 and is above its 200-week simple moving average of $75.71. The weekly momentum reading is projected to decline to 19.69 this week down from 27.28, moving below the oversold threshold of 20.00.

Investors looking to buy Vulcan Materials should buy weakness to $103.31, which is a key level on technical charts until the end of this week.

Investors looking to reduce holdings should sell strength to $117.84 and $119.51, which are key levels on technical charts until the end of 2016 and the end of September, respectively.

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