How To Impregnate Roofing Material

Hammered down rolled roofing should not be used on flat roofs though as this will lead to leaks.

How to impregnate roofing material. Rolled roofing is the least expensive roofing material even compared to low cost composite shingles. Costs for a job as big as replacing an entire roof can vary widely even for installing the exact same shingles. Start at the eave area just over the ice and water shield with a three inches of overlap about 3 and work your way up. While the initial investment of a metal roof is higher the value it offers over a lifetime is substantial.

Here s a side by side comparison of metal roofs and other common roofing materials. When selecting a roofing material there are many factors to take into consideration beyond installation cost. Roofing material is priced by the square a 10 foot by 10 foot section which is. Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.

It is sold as 15 pound or 30 pound felt a figure that represents the weight of one square 100 square feet of the material. This product is the best way of covering low incline roofs. Rolled roofing goes down quickly. Made of asphalt impregnated felt it is used as an underlayment between the roof deck and the roofing material.

Hand carrying obviously the cheapest but also the most physically taxing method is simply carrying the roofing materials by hand onto the roof. Bur systems are constructed with several layers of roofing felt impregnated with asphalt that is applied hot. Then add 10 to the number to account for waste. Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square.

The felt is applied in overlapping layers to form a barrier two to four layers thick then a layer of finely crushed stone is embedded in hot tar over the top to create a very durable and impenetrable roof. Although ceramic tile roofs are expensive they can have a life span of over 100 years. When installing the paper you will overlap the felt paper per local building code usually 2 4. All materials even the nails are inexpensive.

To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof. Make sure you keep this first row straight using the ice and water shield as a guide. How many bundles of shingles will you need. Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments.

The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.