Exhibit 99.1

Ply Gem Overview

* A Leading Manufacturer

·	Windows & Patio door

·	Vinyl Siding

·	Fence, Railing & Decking

* LTM 1 Q 06

·	Net Sales $883.4 million, w/o Alenco $869.6 million

·	Adjusted EBITDA $121.4 million, w/o Alenco $119.9 million

Disciplined approach in applying management processes & principles

What Sets Ply Gem Apart?

I.	Ability to navigate a changing market place

·	Expect the unexpected

·	Contingency planning

·	Maintain flexibility

-	Low overhead

-	Low cost production

·	Constantly search for new ways to improve costs

·	Recognize top line growth is important, but be smart

Bottom line growth must be consistent

·	Watch for opportunities and seize them at the “Right” moment

What Sets Ply Gem Apart? (continued)

II.	Ability to manage the cost/pricing equation

·	When justified pursue price

·	Strategic sourcing

·	Constantly pursuing material efficiency and cost improvement

·	Use of alternative materials

·	Leverage our business proposition to our customers

*	Exceptional service

*	Product diversity

*	Sales team

Marketing

VMI

What Sets Ply Gem Apart? (continued)

III.	Proactive approach

·	Strategic planning

*	Understand our strategic approach and relentlessly pursue it

*	Set specific measurable stretch goals

*	Stick to our core competencies

·	Ensure we have the right people

·	Understand who our customer is & their market

·	Relentlessly pursue excellence

·	Take advantage of change versus becoming the victim of change

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Strategic Plan

Goals

Provide exceptional customer service/quality/business proposition

Offer a product portfolio that meets and exceeds the needs and expectations of Ply Gem’s existing and potential customers

Maintain low cost production and overhead position

Adhere to a disciplined price management strategy

Strategic product and brand management

Expand and build on the strategic customer base, comprised of the “winners” in their respective markets, and have potential to grow in excess of the industry

Offer national service platform to support growing national companies

Create and benefit from industry consolidation

Leverage business portfolio to capture synergistic opportunities on both the cost and
sales sides

Continue integrating business strategies

Attaining #1 or #2 market-leading positions in each market

Creating a company with ongoing growth potential that outperforms the industry

Enhancing profitability and quality of earning strength resulting in significant free cash flow generation

Creating maximum value for the investors and shareholders

Ply Gem’s Strategic Focus

Recent Highlights

I.	Strong 1 Q 06

·	Record net sales $216.3 million, up 26.0% w/o Alenco $202.4 million, up 17.9%.

Siding units up 22.2%, Window units up 5.6%.

·	Record adjusted EBITDA $21.5 million, up 42.4% w/o Alenco $20.0 million, up 32.5%

II.	Top line growth

·	Share gains from new customers, larger positions with current customers and new locations with current customers

·	Customers who appear to be growing faster than the market

·	Appropriate/competitive price increases

III.	Offsetting material and freight cost

·	Overall, material and freight covered 100%

·	PVC, greater than 100%

·	Aluminum products, still catch up to do

·	Timely and successful price increases

·	Strategic sourcing

IV.	Executing on Ply Gem/MW Synergies

•

Cost Side

*	Vinyl lineal production, PVC compound, insurance, etc.

•	Sales Side

*	84 Lumber, Builder Program

V.	New Capital Projects

•	MW Blend Tower

•	CWD Glass Machine

VI.	Maintain a low overhead Structure

Recent Highlights (continued)

Long-term fundamentals for new home construction remain strong…

New Construction Market

¨	Witnessed strong demand in 2005

¨	Market is expected to decline approximately

5% in 2006, but demand should remain

strong relative to historical levels

¨	New household growth in entry-level

market has demonstrated strong funda-

mentals

-	Nearly 12 million new households

expected by 2010

-	Home ownership rate projected to

continue to increase to over 70% by

2010 from 69% today

Home Ownership

Repair and Remodeling Market

¨	Market should be roughly flat with 2005

¨	Fundamentals indicate that R&R should show stable growth

-	Only four down years over the past 40 years

-	Steady rise in home sales and home ownership levels have resulted in increased investment in homes

-	Existing housing stock of 120 million homes continues to age with 70% of housing units built before 1980, driving repair & remodeling spending

Median Age of U.S. Housing Stock

…despite a slowdown in 2005, the repair & remodeling end market is positioned for continued growth

Housing Market Outlook

Ply Gem’s New Construction

Window Business

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2004 Housing Starts Per 1,000

9.2 to 16.8

6.3 to 9.1

3.9 to 6.2

0.4 to 3.8

+13,428

US 2005-2010

Population Growth (000s)

+1,874

Texas 2005-2010

Population Growth (000s)

+663

Georgia 2005-2010

Population Growth (000s)

+769

Arizona 2005-2010

Population Growth (000s)

Source: U.S. Census Bureau, U.S. Department of Commerce and UBS High Yield Research

Favorable Domestic Population Trends

Top Ten Housing Markets by Building Permits

Top Ten States with Largest Change in

Population from 2000-2004

Florida

California

Texas

Georgia

N. Carolina

Arizona

Illinois

Virginia

Michigan

Ohio

Source: U.S. Census Bureau, U.S. Department of Commerce and UBS High Yield Research

Southeast, South and Southwest Remain Strong

Building Permits Issued in 2004 by State

Rank	State	Permits	% of Total
1	Florida	177,648	11.4
2	California	150,437	9.7
3	Texas	142,488	9.1
4	Georgia	84,591	5.4
5	Arizona	76,651	4.9
6	N. Carolina	76,093	4.9
7	Virginia	48,195	3.1
8	Illinois	45,670	2.9
9	Michigan	44,186	2.8
10	Ohio	40,862	2.6
	Top Ten	886,821	56.0
	All Other	672,025	43.1
	Total	1,558,846

Top Domestic Housing Markets

Building Permits Issued in 2004 by City

Rank	Location	Permits	% of Total
1	Atlanta	74,007	3.6
2	Phoenix	65,259	3.2
3	New York	56,873	2.7
4	Dallas	56,388	2.7
5	Houston	56,036	2.7
6	Chicago	47,541	2.3
7	Miami	46,084	2.2
8	Washington, DC	38,024	1.8
9	Las Vegas	36,395	1.8
10	Los Angeles	35,785	1.7
11	Orlando	33,992	1.6
12	Tampa	29,557	1.4
13	Minneapolis	27,714	1.3
14	Seattle	24,486	1.2
15	Sacramento	21,999	1.1
16	Denver	21,836	1.1
17	Detroit	21,808	1.1
18	Charlotte	21,551	1.0
19	Philadelphia	21,010	1.0
20	Cape Coral	20,395	1.0
	Total	756,740	36.6
	All Other	1,313,337	63.4
	Total	2,070,077

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Vinyl continues to take share in new construction

Aluminum continues to hold share in Florida, Texas and Southwest

Wood remains in demand

Channel

Builder

Competitive Forces

Regulatory

Materials

Impact codes

Energy codes

Installation instruction requirements

National production builders continue to gain share at the expense of smaller regional production builders

–

The Top 10 are driving gains

Production builders anticipated to control ~50% of total starts

Semi-custom/custom builders still viable in smaller MSA’s and higher-end markets

The window and door market is still extremely fragmented (consolidation, vertical integration and forward integration are accelerating)

Increasingly important to have a national footprint to service fastest growing channels and end users

–

Lumberyard still dominant in builder and pro remodeler markets

–

The big get bigger (Strober, Stock, 84 Lumber and Builders FirstSource)

Expansion of national programs with large builders

Window Industry Demand Trends

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National Production Builders

2008 Market Polarization

Source: Hanley Wood, 2005

19.0

18.9

20.2

20.3

20.7

13.0

13.1

12.8

13.7

15.9

2000

2001

2002

2003

2004

Top 10

Rest of 100

Large production builders continue to take share

National

Production

Builder

Regional

Production Builder

Dominates larger MSA’s

Growing share across markets
(Starter, Move Up, Empty Nest, Luxury)

Viable in second

tier MSA’s

Small

Regional Builder

Viable in

smaller or

rural markets;
Supplements with
remodeling work

Competes on reputation and
partners with
architects

Custom

Builder

National Production Builders

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Strober/Contractor Yard

Builders First Source

84 Lumber

Stock Lumber

Large Lumberyard Chains - Expanding

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Strong eastern presence supported lumberyard growth

Region I

MW Footprint

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Gross Sales

MW continues to achieve customer conversions in the lumberyard channel

MW Sales by Channel

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MW Brands

Top 10 Builders	Brand	Channel
D.R. Horton	MW	Stock
Pulte	Patriot	Builders FirstSource
Lennar	Patriot	Norandex
Centex	MW	The Contractor Yard
KB Home	NA	NA
Beazer	MW	Builders FirstSource
Hovnanian	Patriot	Direct
Ryland	Patriot	Builders FirstSource
M.D.C. Holdings	NA	NA
NVR	Patriot	Direct

Patriot Brand

MW currently supports top production builders

Production Builder Business

Consolidating vendors over next few years

Stock felt that MW was correct in its focus

Should leverage MW brand, similar to Jeld-Wen

MW will have competitive advantage due to its product offering

Very interested in MW growth model

84 Lumber plans to consolidate window supplier (much like Stock)

Very interested in an aluminum product for Florida

Eager to assist MW with growth strategy

No formal plans for vendor consolidation

Very interested in MW’s support of Florida

Very interested in MW’s Opening Price Point (“OPP”) product

Consolidating with Lanoga

Strober merging with Lanoga to form Pro-Build Holdings

Interested in our growth strategy

Customer Commentary

A National Footprint Provides a Competitive Advantage

2000–2004 Average Yearly Single Family Building

Permits Issued

Number of Top Builders by Market

Key Customer Migration

MW Key Competitor’s Locations

C
T

Investigate National Footprint

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MW is focused on expanding into five additional regions that represent growing markets

with favorable long-term demographic trends

Mexico

British

Columbia

Alberta

Saskatchewan

Manitoba

Ontario

Québec

Region

Proposed National Footprint and Priorities

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Alenco is a leading manufacturer of windows and doors serving the new construction end market

2005E Sales by Material

2005E Sales by Product

Founded in 1948, Alenco has established 40+ years of heritage

Operates in the fast-growing Southern US market

Distribution channel focused on fastest growing customers:

–

National builders

–

Large regional builders

Experienced management team with a strong track record of success in this segment

Alenco Overview

Alenco expands Ply Gem platform: product, geography

Bryan, Texas

Window Assembly Plant

Aluminum Extrusion Facility

Storage Facility

250,000

75,000

60,000

Facilities

Sq. Feet

Dallas, Texas

Window Distribution Facility

Replacement Window Facility

52,000

32,000

Facilities

Sq. Feet

Peachtree City, Georgia

Window Assembly Plant

Vinyl Extrusion Facility

150,000

40,000

Facilities

Sq. Feet

Phoenix, Arizona

Window Assembly Plant

150,000

Facilities

Sq. Feet

Alenco Produces both aluminum and vinyl windows to accommodate varying regional construction requirements

–

Alenco’s products accommodate regional construction differences yet minimize the impact on manufacturing

–

Alenco’s product platform approach minimizes manufacturing complexity and increases the number of options offered

–

Alenco’s lean manufacturing approach to product engineering allows Alenco to stay connected with the market and quickly adapt to changing conditions

Current locations capable of servicing the 9 fastest-growing states, based on population

–

Alenco has significant share in Arizona, Texas and Georgia, which represent 3 of the nation’s top 5

markets

Alenco’s Role

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Alenco expands Ply Gem customer base

Alenco’s core customer is specialty building products distributors

Alenco is focused on teaming up with customers who are expanding their national footprint and rapidly consolidating the industry

Alenco's Role

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Constant focus on short lead times helps promote simplicity

Simplicity supports fewer errors, decreasing cost and increasing customer satisfaction

–

Lean management structure promotes direct interaction with customers and a keen awareness of changes in the market

Linear/Connected Manufacturing Process increases a supervisor’s span of control and creates a better working environment for employees

Alenco’s aluminum extrusion operations provide improved responsiveness, consistent lead times and increased profit margins

Alenco’s information systems support the business by providing quick and concise information

Alenco compliments Ply Gems culture

Alenco’s Role

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Alenco provides immediate coverage and product offering

Mexico

British

Columbia

Alberta

Saskatchewan

Manitoba

Ontario

Québec

Region

MW Facility Footprint

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Debatably, industry’s most complete product offering

Vinyl continues to grow at above market rates

Source: Freedonia

Competitive Position

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Alenco

Lineal

Vertically Integrated, Low-Cost Producer

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Strong brand equity within the trade

Strong partner relationships with industry leaders

Vertically integrated, flexible, low-cost producer

Emerging national footprint

Complete product offering

Industry leading service

Positioned for Continued Growth

Siding Business Overview

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Variform Overview

►Variform is a leading manufacturer of vinyl siding and aluminum accessories serving both the new construction and remodeling markets.

The company maintains the #2 market position in the U.S. vinyl siding industry and #1 positions in the manufactured housing, retail home center and lumberyard channels.

Sales by Product Category

Sales by End Market

Sales by Distribution Channel

Aluminum

Accessories

20%

Remodeling

37%

New

Construction
63%

Wholesale

1-Step
43%

Manufactured

Housing

13%

Home

Centers
23%

Lumberyards

21%

Vinyl Siding &

Accessories

80%

* Based on 2005 Revenue

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The U.S. siding market is estimated at $8.5 billion, with vinyl siding representing a 45% share of total residential volume.

Market Share Trends by Siding Product Type

Vinyl and fiber cement increasing marketshare at the expense of wood

Source: Freedonia 2004

’93 ’03 ’08

Vinyl

Metal & Misc

Wood

Stucco

Brick

Fiber Cement

U.S. Siding Industry

Stucco

21%

Wood

14%

Fiber

Cement 13%

Other

Vinyl

30%

Brick

21%

Residential New Construction Market

Residential Repair/Remodel Market

Wood

19%

Vinyl

63%

Fiber

Cement
10%

Stucco 4%

Other 3%

Brick 1%

Manufactured Housing Market

Wood

26%

Vinyl

59%

Fiber

Cement
11%

Other

Key Vinyl Siding Advantages

►

Low installed Cost

►

Minimal maintenance

►

High level of durability

►

Resistance to rot, mildew and insects

►

Ease of installation

*Source: Freedonia 2004

U.S. Residential Siding Market -

Segment Share by Product Type

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►

Variform has continued to gain marketshare, from 11% in 1999 to 15% in 2006

►

Growth has come from Lowes, 84 Lumber, Wholesale 1-step distributors and manufactured housing OEM's.

Variform Market Position by Segment

Channel Variform Position

Lumberyards #1 High penetration of independent lumberyards, converted

100% of 84 Lumber business from Owens Corning (Q-1, 2006).

Home Centers #1 Exclusive supplier to Lowes, #3 position at Home Depot

Manufactured Housing #1 70% marketshare, exclusive supplier to Clayton Homes,

converted Southern Energy (2006).

Wholesale 1-Step #4 Increasing marketshare via new strategic customers Masco,

Lyf-Tym and Marsh

Certainteed

21%

Heartland 4%

Variform/

Napco

15%

14%

Owens Corning

Crane 6%

Royal 6%

Kaycan 7%

Alside 11%

Alcoa 13%

Other 3%

*Source: Pure Strategy, Management Estimates

U.S. Vinyl Siding Marketshares

Variform is #2 and Increasing Marketshare

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►

Low cost producer of high quality products

Labor productivity among highest in the industry

Strategic sourcing yielding advantageous vinyl raw material pricing

Utilization of low cost alternate raw materials

Warranty claims rate of 0.37% versus industry median of 1.0%

SG&A expense less than 8% of sales

►

Broad offering of vinyl and aluminum products

Vinyl/aluminum bundle better serves the needs of distribution partners versus focused competitors

►

Excellent customer service

Exclusive Vendor Managed Inventory program increases customer inventory turns and fill rates

Combined Napco brand vinyl/metal shipments increases customer inventory turns

Excellent lead times (5-7 days) and fill rates (98.5%)

►

Exclusive supplier to industry leading distributor BlueLinx, #2 home center chain Lowes and #1 manufactured housing builder Clayton Homes. Primary supplier to #3 Lumberyard chain 84 Lumber.

►

Strong earnings and cash generation

Low Cost

High Qualiy

Broad

Product
Offering

Value

Added
Services

Partnered

with Industry
Leaders

Strength

Financial

Variform Competitive Advantages

Ø	Low cost production

Ø	High service levels

Ø	High product quality

Ø	Safe plants

Ø	Virtual plant platform

Vinyl

Metal

¨	Valencia, PA

¨	175,000 sq. ft.

USW

¨	Kearney, MO

¨	175,000 sq. ft.

Non

¨	Jasper, TN

¨	270,000 sq. ft.

Non

Location:

Square Feet:

Union Status

¨	Martinsburg, WV

¨	163,000 sq. ft.

Non

Continued investment and commitment to low cost production, high service levels and quality have enabled Variform to secure competitive advantages.

Valencia, PA

Kearney, MO

Jasper, TN

Martinsburg, WV

Low Cost and Flexible Production Facilities

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Differentiated product lines using multiple brands allows Variform to sell all segments of

the market while minimizing channel conflict.

Vinyl Siding Product Lines

Product lines highlighted in blue have been introduced since 2000.

Specialty	Nostalgia Series® Shakes	Cedar Select® Shakes	Rough Sawn Cedar™
	Nostalgia Series® Scallops	Cedar Select® Scallops	New World Scallops™
	CSL 600	--	--
	Victoria Harbor®	American ’76 Collection®	Somerset™
	--	--	Chatham Ridge®
Premium	Timber Oak®	American Splendor® XL	Cedar Lane®
	Varigrain Preferred®	American Splendor®	--
Standard	Camden Pointe®	--	--
	Nottingham	American Herald®	Heritage Hill™
	Ashton Heights	American Tradition™	Forest Ridge®
	--	--	Shadow Ridge®
	--	--	Castle Ridge®
Economy	Contractor’s Choice®	American Comfort®	Vision Pro®
	--	Providence®	--
Manufactured Housing	--	--	Parkside™
	--	--	Oakside®
	--	--	Parkridge®