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Roofing 101

Helping You Understand Your

Roof and Investment

   roof money   Accu-Rite understands the costs associated with your roof replacement and repairs. A case is made for why you should choose a dependable contractor in The Accu-Rite Advantage tab above. This may be the single most important part of your decision.

      We also think a beginner's understanding of roofing can also aid you in being more informed and feeling at ease with the roofing process. Considering you may be getting a roofing project started this may be some useful information.



RAFTERS - Wooden beams in attic designed to create a slope on a roof surface and support decking and roofing materials.

exposed rafters with deckingCommon problems - warping or deflection which is usually caused by a lack of ventilation. Can cause dips on the roof surface. 

roof dipDECKING - Solid part of roof attached to rafters that supports the roof system. Usually plywood or wooden lumber in older home construction.

Common Problems - lack of ventilation can cause decking to warp. Water leaks will rot the wood material.    

Roof diagram 4UNDERLAYMENT - Water barrier of the roof system. This part of the roof can either be a asphalt felt, or an upgraded synthetic material. To include Radiant Barriers which offer energy efficiency.

VENTILATION - The purpose of this roof component is to vent heat out of the attic space. Aside from cooling your homes interior it also prevents heat from dry rotting rafters and decking. Positive air flow is a critical element in proper ventilation.

SHINGLES/TILE/METAL - Part of roof that creates a covering of overlapping elements of a roof system. This part of the roof can be asphaltic shingles, metal panels, tiles, or wood slats. This part of the roof system serves to protect roof against weather and offer architecture beauty to compliment the entire structure.



      Commercial roofing systems can vary depending on local weather conditions or specific functions a structure may require, i.e. a restraunt. These are some of the roof systems commonly installed in the commercial roofing industry.gravel

AGGREGATE BUILT UP SYSTEM - A built up roof system refers to the mutiple layers of underlayments that are built up, adhered together and to the roof surface with hot asphalt. The final layer of roofing is the gravel or aggregate which is installed in a flood coat of asphalt. These are usually flat roofs with a low slope. These systems although effective are currently being replaced by more efficient systems.

modified bitumen rollsMODIFIED BUILT UP SYSTEM - The modified version of the built up roof system is similar to the above roof system but substitutes a modified bitumen cap sheet in the final layer of the system. The advantage to this system is that it stresses the roof deck with less overall weight.

TPO 1 PVC ROOF SYSTEM - The next wave of roofing products appears toTPO Roof System 4 be TPO. This roof system combines reflective properties, light weight, no need for hot asphalt (safer), and easy repairability. The system installation involves insulation fastened to deck and the TPO cap sheet that is secured to the roof with small metal plates and fasteners over the insulation.

       Please contact our well informed estimators who will be glad to discuss any questions you may have. We have samples of the different materials to include the various colors and product variations available.

METAL ROOF SYSTEM Metal roof systems come in a wide variety to include profiles to meet architectual appearances of reliable warehouse and industrial applications. Reflectivley concealed fasteners and low maintenance are qualities that make metal a good roof material system or retrofit on your next roof system replacement.


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