Between dwellings and between dwellings and other buildings.

This continuous chain reaction creates a sound wave which travels through the air until at some distance the air particle movement is so small that it is inaudible to the human ear. Sounds are defined as either impact or airborne sound, the definition being determined by the source producing the sound. Impact sounds are created when the fabric of structure is vibrated by direct contact whereas airborne sound only sets the structural fabric vibrating in unison when the emitted sound wave reaches the enclosing structural fabric.

The vibrations set up by the structural fabric can therefore transmit the sound to adjacent rooms which can cause annoyance, disturbance of sleep and of the ability to hold a normal conservation. The objective of sound insulation is to reduce transmitted sound to an acceptable level, the intensity of which is measured in units of decibels (dB).

Open Riser Timber Stairs ~ these are timber stairs constructed to the same basic principles as standard timber stairs excluding the use of a riser. They have no real advantage over traditional stairs except for the generally accepted aesthetic appeal of elegance. Like the traditional timber stairs they must comply with the minimum requirements set out in Part K of the Building Regulations. Read More About: foumovie

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Design and Construction ~ because of the legal requirement of not having a gap between any two consecutive treads through which a 100 mm diameter sphere can pass and the limitation relating to the going and rise, as shown on the previous page, it is generally not practicable to have a completely riser less stair for residential buildings since by using minimum dimensions a very low pitch of approximately 271=2 would result and by choosing an acceptable pitch a very thick tread would have to be used to restrict the gap to 100 mm. Visit The Site: khatrimaza

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