Four Seasons MC2 and MC3 WonderGlass™ COMPARISON CHART
THE COMPETITIONS GLAZING (Cost you much More to Operate Year after Year)	FOUR SEASONS WONDERGLASS™ (Pays For Itself In the Very First Year)
<--- BACK

A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q
C O D E	V E R T	R O O F	D E S C R I P T I O N - CONSTRUCTION	TRANSMITTANCE % vis solar UV			REFLECTIVITY % vis-out vis-in		conden- sation occurs at temp. F	inside glass surface temp. F	shading coef- ficient	relative heat gain	ASHRAE WINTER u-value r-value		EUROPEAN k w/m2/c heat gain w/m2
The Competitions Glass - Single Glazing (These glazings are all available from Four Seasons)
1			Clear Single Glazing	90	83	70	9	9	52	17	0.99	213	1.11	0.9	6.29	671
2			Solar Bronze Single Glazing	68	64	39	6	6	52	17	0.83	181	1.11	0.9	6.29	578
4			Azurlite Single Glazing	77	43	54	8	8	52	17	0.67	149	1.11	0.9	6.29	471
5			SC Azurlite Single Glazing	27	19	14	37	21	52	17	0.39	87	1.10	0.9	6.26	293
6			Solid/Aluminum/OSB/Aluminum	0	0	0	0	0	40	28	N/A	12	0.66	1.5	3.75	38
The Competitions Glass - Double Glazing (These glazings are all available from Four Seasons)
20			Clear/Clear	81	69	52	16	16	30	45	0.87	182	0.49	2.0	2.79	576
21			Solar Bronze/Clear	62	54	32	11	14	30	45	0.70	147	0.49	2.0	2.79	476
23			Azurlite/Clear	69	37	43	15	15	30	45	0.53	114	0.49	2.0	2.79	363
29			Solid/Aluminum/EPS Foam/Aluminum	0	0	0	0	0	-2	58	0.23	N/A	0.24	4.2	1.38	--
40			Clear/Low-E	78	61	53	18	17	-2	50	0.82	170	0.39	2.6	2.21	536
41			Solar Bronze/Low-E	58	47	30	12	16	-2	50	0.66	138	0.39	2.6	2.21	435
44			Clear/Argon/Low-E	78	61	53	18	18	-2	52	0.82	170	0.35	2.9	1.97	536
50			16mm Polycarbonate (4 Wall)	48	71	1	--	--	--	--	0.75	153	0.39	2.6	2.20	479
Four Seasons 'PLUS' Glass Heat Mirror Film and Argon Gas Filling - A variety of HEAT MIRROR(tm) glazings are indicated by HM-66, HM-44 and HM-22 for maximum flexibility. Note: suspended HEAT MIRROR(tm) plastic film may impart a slight haze to the glass and a slight wrinkling effect along the outer perimeter of the glass.											10 Year Limited Product Warranty - 2 year full coverage - see complete warranty for details
62			Clear/HM-66/Argon/Clear	55	28	1	35	35	-3	59	0.41	88	0.22	4.6	1.20	282
65			Clear/HM-44/Argon/Clear	39	18	1	50	53	-3	59	0.28	65	0.21	4.8	1.20	208
67			Clear/HM-22/Argon/Clear	20	09	1	70	71	-3	59	0.16	36	0.21	4.8	1.20	115
Four Seasons MC2 WonderGlassTM [ E = MC2 ] [Energy efficiency = Multi Coat Double Glazed Glass] Double Glazed with Argon Gas Filling and Dual Seal Silicone with PIB Primary Seal Proprietary advanced technology multiple coatings with such exotic metals as titanium and silver are applied. Corners are bent to be air/gas tight. Superior construction assures long term durability.											Lifetime Limited Product Warranty - 10 year full coverage - see complete warranty for details
70			MC-72/Argon/Clear	72	38	16	11	12	-3	57	0.47	97	0.25	4.0	1.20	306
71			Clear/Argon/MC-56	56	29	13	17	10	-3	57	0.60	124	0.25	4.0	1.20	390
Glazed Glass used by Northbay Sunspace, Inc.
72			MC-62/Argon/Clear	62	32	14	9	12	-3	57	0.41	85	0.25	4.0	1.20	267
73			MC-56/Argon/Clear	56	29	13	10	17	-3	57	0.38	79	0.25	4.0	1.20	249
77			MC-22/Argon/Clear	22	10	9	66	60	-3	57	0.14	30	0.24	4.2	1.20	95
77L			MC-22/Argon/Lami	21	08	1	66	57	-3	58	0.13	30	0.23	4.4	1.20	94
Four Seasons MC3 WonderGlassTM [ E = MC3 ] [Energy efficiency = Multi Coat Triple Glazed Glass] Triple Glazed with Krypton Gas Filling and Dual Seal Silicone with PIB Primary Seal Proprietary advanced technology multiple coatings with such exotic metals as titanium and silver are applied. Corners are bent to be air/gas tight. Superior construction assures long term durability.											Lifetime Limited Product Warranty - 10 year full coverage - see complete warranty for details
91			MC-62/Krypton/MC-62/Krypton/Clear	42	18	4	10	13	-108	64	0.30	62	0.10	10.0	0.58	197
94			MC-56/Krypton/MC-56/Krypton/Clear	35	15	4	11	21	-108	64	0.27	56	0.10	10.0	0.59	177
97			MC-22/Krypton/MC-56/Krypton/Clear	14	6	2	66	37	-108	64	0.10	22	0.10	10.0	0.58	68
NOTES BY COLUMN: Highly Recommended -- *Tempered lami glass add $9.23 -- C - Code 73 can be used for roof in cold climates -- E - Visible Light (Glare) - A measure of that portion of total solar radiation visible to the human eye. -- Note: The glare caused by too much light can cause discomfort. Codes 73 and 77 have excellent glare control.						H & I - Reflectivity - Choose a low number in the vertical area for best calrity and lowest reflectivity -- G - UV (Ultraviolet) - Accounts for 50% of fabric fabric. Eliminating all UV reduces by 50% -- J - Condensation - Occurs at this outside temperature with 60% inside relative humidity -- K - ASHRAE Conditions - 15 MPH wind, 0 degrees outside, 70 degrees inside						L - Shading Coefficient - Ratio of solar gain to 1/8" clear glass -- M - Relative Heat Gain - Amount of BTUs gained per hour per square foot of glass -- N - U-Value - BTU/HR/SQ.F/degrees F. The lower the better (R=1/U) -- Q - R-Value - The higher the better.
Source: Lawrence Berkey Labs, Windows 4.1

Back | Home Page