Underlays

Deckguard

NEW Lightweight Synthetic Underlayment.

Deckgard is a light-weight synthetic roofing underlayment. It is a two-side coated, woven polypropylene fabric containing a new textured antislip surface. It is also :

- Tough on weather ;
- Light on roofers ;
- Friendly on scheduling and budgets ;
- High on powerful construction and durability ;
- Easy on installations virt ually year-round.

#15 CSA Perforated (36'')

This saturated felt #15 CSA Perforated is a uniform flexible felt of organic fibres, impregnated with an asphalt saturant. Perforated by more than 1200 holes per square meter with guide lines on the top surface for alignment.

Uniform and Flexible Felt of Organic Fibres, Impregnated with an Asphalt Saturant.

#15 CSA Pro

Uniform and Flexible Felt of Organic Fibres, Impregnated with an Asphalt Saturant.

Saturated felt is a uniform, flexible felt of organic fibres, impregnated with an asphalt saturant.

In most areas of the country, a roof can't withstand exposure to the elements with just a layer of shingles to protect it. An additional underlayment layer(s) is needed to deter water penetration. 

Properly sealing out water before shingling requires these elements:

Laying a waterproofing membrane.

We start by adding a waterproofing membrane along eaves and valleys. These are high-risk areas for leaks; valleys due to improper flashing installation and eaves because of icedams. We used a thick, bituminous material with an adhesive backing. 
 

Rolling out builder's felt. Builder's felt (tar paper) is the most widely used roofing underlayment. It comes in rolls and its thickness is gauged in pounds. Typically, a roll of 15 lb. felt may cover about 400 sq. ft. and a roll of 30lb. would cover half that area. 

#15 CSA Pro-LW

Uniform and Flexible Felt of Organic Fibres, Impregnated with an Asphalt Saturant.

A uniform, flexible felt of organic fibres, impregnated with an asphalt saturant.

#30 D4869 (18'')

Uniform and Flexible Felt of Organic Fibres, Impregnated with an Asphalt Saturant.

Saturated felt is a uniform, flexible felt of organic fibres, impregnated with an asphalt saturant.

Type 15

Uniform and Flexible Felt of Organic Fibres, Impregnated with an Asphalt Saturant.

Saturated felt is a uniform, flexible felt of organic fibres, impregnated with an asphalt saturant. With 50 mm (2'') guide lines to facilitate horizontal alignment during shingle application.

Type 30

Uniform and Flexible Felt of Organic Fibres, Impregnated with an Asphalt Saturant.

This saturated felt with guide lines is a uniform, flexible felt of organic fibres, impregnated with an asphalt saturant.

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© Algonquin Roofing Inc. 2013

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