Roofing Company in Mansfield
Any roofing company in Mansfield will emphasise the importance of attic ventilation. The whole question of attic ventilation and the amount of ventilation necessary is by no means agreed or unanimous. On the basis of research conducted so far, the strongest case for ventilating asphalt shingle roof assemblies with outside air is established for residences are located in cold climates and where accumulations of snow persist on roof tops for long periods of time. When these conditions persist, ventilation has been regarded to be a valuable strategy in removing excess moisture from attics and preventing condensation which can cause damage to sheathing on the roof and retarding the formation of ice dams.
Research has also shown that ventilation with outside air reduces average air temperature in attics in summer, though research has not proved any significant effects of attic ventilation on the average surface temperature of the roof. In fact, the search results show that ventilation has little effect on average temperature of the roof surface, then the direction in which the roof surface faces or the colour of roofing material. Some sources of material available to homeowners suggests that attic ventilation is necessary is in conjunction with asphalt shingle roof systems. For example, manufacturer warranties for asphalt shingle may make warranty coverage conditional on setting a certain minimum ventilation requirement. Manufacturers should be consulted for homeowners for the specific ventilation requirements for any particular asphalt shingle product. Ventilation of spaces in the attic can be accomplished by using passive ventilation or powered ventilation.
On the topic of the ventilation of vaulted ceilings, they are sometimes referred to as "cathedral ceilings," and can generally be found in steep slope roof assemblies where there is almost no attic space between a ceiling and the roof deck. These assemblies can create peculiar ventilation problems of their own. Cathedral ceiling assemblies which are properly insulated and incorporate air and vapour retarders can operate adequately without ventilation. Vented cathedral ceiling assemblies include soffit or eave vents, adequate amounts of open a space between the insulation and the roof deck, sheathing as well as ridge vents. For buildings located in hot climates, a problem which is often associated with inadequately ventilated and improperly insulated cathedral ceiling roof assemblies is the formation of ice dams and icicles on the eaves of these roof assemblies. Ice dams are formed when hit from the interior of a building escapes through naval base insulation panels in a cathedral ceiling and causes warming in the roof deck from below. This is the reason why provisions for ventilation are included in asphalt shingle roof assemblies with vaulted ceilings.
Research has shown that conditioned and unventilated attics can perform as an effective alternative to ventilating attics for steep slope roof assemblies. The concept itself provides for moving ceiling air and thermal barriers to the plane of the roof where better airtightness can be achieved in buildings. In most cases, using unvented conditioned attic assemblies results in an increase in roof surface temperatures as compared to conventional vented assemblies. For instance, the difference between roof surface temperatures in the southern and northern regions of the US are much greater than the differences in surface temperature between unvented assemblies and conventional vented assemblies.
Research has also shown that ventilation with outside air reduces average air temperature in attics in summer, though research has not proved any significant effects of attic ventilation on the average surface temperature of the roof. In fact, the search results show that ventilation has little effect on average temperature of the roof surface, then the direction in which the roof surface faces or the colour of roofing material. Some sources of material available to homeowners suggests that attic ventilation is necessary is in conjunction with asphalt shingle roof systems. For example, manufacturer warranties for asphalt shingle may make warranty coverage conditional on setting a certain minimum ventilation requirement. Manufacturers should be consulted for homeowners for the specific ventilation requirements for any particular asphalt shingle product. Ventilation of spaces in the attic can be accomplished by using passive ventilation or powered ventilation.
On the topic of the ventilation of vaulted ceilings, they are sometimes referred to as "cathedral ceilings," and can generally be found in steep slope roof assemblies where there is almost no attic space between a ceiling and the roof deck. These assemblies can create peculiar ventilation problems of their own. Cathedral ceiling assemblies which are properly insulated and incorporate air and vapour retarders can operate adequately without ventilation. Vented cathedral ceiling assemblies include soffit or eave vents, adequate amounts of open a space between the insulation and the roof deck, sheathing as well as ridge vents. For buildings located in hot climates, a problem which is often associated with inadequately ventilated and improperly insulated cathedral ceiling roof assemblies is the formation of ice dams and icicles on the eaves of these roof assemblies. Ice dams are formed when hit from the interior of a building escapes through naval base insulation panels in a cathedral ceiling and causes warming in the roof deck from below. This is the reason why provisions for ventilation are included in asphalt shingle roof assemblies with vaulted ceilings.
Research has shown that conditioned and unventilated attics can perform as an effective alternative to ventilating attics for steep slope roof assemblies. The concept itself provides for moving ceiling air and thermal barriers to the plane of the roof where better airtightness can be achieved in buildings. In most cases, using unvented conditioned attic assemblies results in an increase in roof surface temperatures as compared to conventional vented assemblies. For instance, the difference between roof surface temperatures in the southern and northern regions of the US are much greater than the differences in surface temperature between unvented assemblies and conventional vented assemblies.