Roof replacement and installation

Roofs leak from a break in the waterproofing layer, sometimes caused by mechanical damage, sometimes from an opening in the sealer such as pitch pans and caulking, and sometimes from deterioration or defects in the roofing materials. The key roof management task is leak avoidance.

Learn more about whether you can repair a roof after a leak here.

Like any building component, roofs degrade at different rates depending on a large number of factors: the quality of the original construction, the level of abuse, the level of maintenance, appropriateness of design and others. So how long should a roof last? We have seen poorly designed and badly installed roofs go as few as six or seven years before they failed. We have also seen well designed and installed roofs last over sixty years. Most building owners, roofing contractors and designers feel 20 years is an acceptable service life.

Learn more about how long a roof should last here.

Installing a roof over the top of an existing roof is generally acceptable under these guidelines:
1) A building cannot have more than two roofs.

2) No wet insulation can be left in place.

3) The roof structure must be able to handle the additional roof load.

4) The new roof must be attached to the roof deck to meet wind loads.

Learn more about whether you can put a new roof on top of an old roof here.

Remove all loose items from walls and shelves. The constant hammering during construction may cause enough vibration to shake those items down. Make sure to clear your driveway and items directly surrounding your home.

Learn more about how roofing installation works here.

Call 1-800-HANSONS to arrange a no obligation presentation of all the roofing products we have available. A full range of samples will be displayed for your review as you make your decision.

Different types of roofs fail at different rates with different failure modes. The most frequent failure clues are: Does the roof leak in numerous locations? Do leaks continue despite repeated repair attempts? Do repairs seem to make leaks worse, or do new leaks develop after repairs?

Learn more about when to replace a roof here.

Unlike standard 3-tab, or strip shingles, which are single layer in design, a growing number of shingles are multi-layered or laminated.

Learn more about architectural shingles here.

The typical ice dam is a buildup of ice that forms near the eaves or gutters as a result of interior heat escaping into the attic and through the roof decking. The heat melts the snow and ice on the upper areas of the roof resulting in meltwater. This melted water runs to cold, lower areas or eaves and depending on the conditions refreeze.

Learn more about ice dams here.

Shingles are made up of a combination of asphalt, metal, rubber, and laminate. The rubber in Class 4 roof shingles allows hail to bounce off the roof. And, because they are thicker than other types of shingles, Class 4 shingles maintain their strength against hailstones that are up to 2 inches in diameter. A Class 4-rated shingle can also qualify for insurance discounts.

Core4 is a shingle created using state-of-the-art technology and has four distinctive features: a PolyCore™ that is made from advanced polymer materials, a FlexCore™ that allows the shingle to bend without cracking or breaking, a WeatherCore™ that resists impact from high winds and hail, and a ThermalCore™ that provides stability during severe weather.

The black streaks, stains, and discoloration you see on the roofs of many homes is caused by blue-green algae. All three types of 1-800-HANSONS shingles are embedded with special algae-resistant granules that will keep your roof looking like new for years to come.