REPLACING CEDAR ROOFING WITH FIBREGLASS LAMINATED ASPHALT ROOFING

There is a popular trend in dealing with cedar re-roof jobs, commonly called "Conversion."

Fiberglass reinforced Laminated roofing is manufactured by a number of companies, and proves to be beautiful and economical way to replace cedar.

Following is an example, showing a lot of specific data, which should be of interest to anyone faced with making decisions about cedar roofing.

We used Malarkey Sienna Blend on this cedar to laminate conversion job in Cloverdale, during early January, 2004. The owner is very pleased, and the effect of the colour is attracting a lot of neighbourhood attention.

Ridglass High Profile Caps with Cobra Ridge Cap venting on peak Peak Caps are doubled up for Saddle effect. Size of roof - 34 square The roof was done in Untreated Tapersawn Shakes, no with maintenance, and was very rotten at 18.5 years.

ROOF REPLACEMENT COST PER YEAR UNDER GUARANTEE:

Roof Type	Roof Lifetime	Cost per Year
Cedar	20 yrs at best	$18,986/20 = $949 per year
Laminate	30 year mfg. Guarantee	$13,940/30 = $464 per year

Laminate has the further advantage of lower maintenance costs over the lifetime, as well. These facts, put together with the good looks and wide colour choice, account for the popular trend of "conversion" re-roofs. In the process of conversion to Fiberglass reinforced Laminate Shingles:

• Roof is stripped of all cedar, nails are removed or nailed fully flush
• Plywood is installed to create a roof deck
• 30 pound felt is installed around the eve
• 15 pound felt is installed everywhere else.
• Valleys are flashed with metal
• All lower flashings are replaced.
• Proper venting is cut into the ply.
• Laminated shingles are installed, with a double starter course.
• For best appearance, raised, high profile caps are installed.

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RECOMMENDED ROOF REPAIR LINKS

Roofing Institute of BC

Materials Supplier (Stoney Cedar)